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MT


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C TRANSMISSION/TRANSAXLE

                                                                                                                                                                   A




                                                                                                  SECTION
                                                                                           MANUAL TRANSAXLE
                                                                                                                              MT                                   B



                                                                                                                                                                   MT



                                                                                                                                                                   D



                                                                                                                                                                   E
                                                                  CONTENTS
                               RS6F94R                                            AIR BREATHER HOSE ........................................... 16        .        F
                                                                                    Removal and Installation ....................................... 16   .
PRECAUTIONS ......................................................... 4  .            COMPONENTS .................................................. 16    .
  Precautions for Supplemental Restraint System                                       REMOVAL .......................................................... 16
                                                                                                                                                          .        G
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                             INSTALLATION .................................................. 16  .
  SIONER" ................................................................. 4
                                                                         .        TRANSAXLE ASSEMBLY ....................................... 17           .
  Precautions ............................................................. 4
                                                                         .          Components .......................................................... 17
                                                                                                                                                          .
PREPARATION .......................................................... 5 .                                                                                         H
                                                                                    Removal and Installation ....................................... 17   .
  Special Service Tools .............................................. 5 .            REMOVAL .......................................................... 17
                                                                                                                                                          .
  Commercial Service Tools ....................................... 6     .            INSTALLATION .................................................. 17  .
NOISE, VIBRATION AND HARSHNESS (NVH)                                                Disassembly and Assembly ................................... 19       .         I
TROUBLESHOOTING ............................................... 8        .            COMPONENTS .................................................. 19    .
  NVH Troubleshooting Chart .................................... 8       .            DISASSEMBLY .................................................. 25   .
DESCRIPTION ........................................................... 9.            ASSEMBLY ........................................................ 30.        J
  Cross-Sectional View .............................................. 9  .        INPUT SHAFT AND GEARS ................................... 36            .
    TRIPLE-CONE SYNCHRONIZER ..................... 10                    .          Disassembly and Assembly ................................... 36       .
    REVERSE GEAR NOISE PREVENTION FUNC-                                               GENERAL PRECAUTIONS ............................... 36              .
    TION (SYNCHRONIZING METHOD) ................ 10                      .                                                                                         K
                                                                                      DISASSEMBLY .................................................. 36   .
M/T OIL .....................................................................11
                                                                         .            INSPECTION AFTER DISASSEMBLY ............... 38                     .
  Changing M/T Oil ...................................................11 .            ASSEMBLY ........................................................ 39.
    DRAINING ...........................................................11
                                                                         .        MAINSHAFT AND GEARS ...................................... 40           .        L
    FILLING ...............................................................11
                                                                         .          Disassembly and Assembly ................................... 40       .
  Checking M/T Oil ....................................................11.            GENERAL PRECAUTIONS ............................... 40              .
    OIL LEAKAGE AND OIL LEVEL .........................11                .            DISASSEMBLY .................................................. 40   .        M
SIDE OIL SEAL ....................................................... 12 .            INSPECTION AFTER DISASSEMBLY ............... 41                     .
  Removal and Installation ....................................... 12    .            ASSEMBLY ........................................................ 42.
    REMOVAL .......................................................... 12.        REVERSE IDLER SHAFT AND GEARS ................. 45                      .
    INSTALLATION .................................................. 12   .          Disassembly and Assembly ................................... 45       .
POSITION SWITCH ................................................. 13     .            DISASSEMBLY .................................................. 45   .
  Checking ............................................................... 13
                                                                         .            ASSEMBLY ........................................................ 46.
    BACK-UP LAMP SWITCH ................................. 13             .        FINAL DRIVE ........................................................... 47
                                                                                                                                                          .
    PARK/NEUTRAL POSITION SWITCH .............. 13                       .          Disassembly and Assembly ................................... 47       .
CONTROL LINKAGE .............................................. 14        .            DISASSEMBLY .................................................. 47   .
  Components of Control Device and Cable ............ 14                 .            INSPECTION AFTER DISASSEMBLY ............... 48                     .
  Removal and Installation ....................................... 14    .            ASSEMBLY ........................................................ 48.
    REMOVAL .......................................................... 14.        SHIFT CONTROL .................................................... 50   .
    INSTALLATION .................................................. 15   .          Inspection .............................................................. 50
                                                                                                                                                          .
                                                                                  SERVICE DATA AND SPECIFICATIONS (SDS) ..... 51                          .
                                                                                    General Specifications ........................................... 51 .



Revision: December 2006                                                     MT-1                                                               2007 Sentra
                               RS6F52A                                             MAINSHAFT AND GEARS .................................... 105             .
                                                                                     Disassembly and Assembly ................................. 105         .
PRECAUTIONS ........................................................ 52   .            DISASSEMBLY ................................................. 105    .
  Precautions for Supplemental Restraint System                                        INSPECTION AFTER DISASSEMBLY ............. 106                       .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                              ASSEMBLY ....................................................... 108 .
  SIONER" ................................................................ 52
                                                                          .        REVERSE IDLER SHAFT AND GEARS ............... 114                        .
  Service Notice or Precautions ............................... 52        .          Disassembly and Assembly ................................. 114         .
PREPARATION ........................................................ 53   .            DISASSEMBLY ................................................. 114    .
  Special Service Tools ............................................ 53   .            INSPECTION AFTER DISASSEMBLY ............. 114                       .
  Commercial Service Tools ..................................... 55       .            ASSEMBLY ....................................................... 115 .
NOISE, VIBRATION AND HARSHNESS (NVH)                                               FINAL DRIVE ......................................................... 116.
TROUBLESHOOTING ............................................. 57          .          Disassembly and Assembly ................................. 116         .
  NVH Troubleshooting Chart ................................... 57        .            PRE-INSPECTION ........................................... 116       .
DESCRIPTION ......................................................... 58  .            DISASSEMBLY ................................................. 116    .
  Cross-Sectional View ............................................. 58   .            INSPECTION AFTER DISASSEMBLY ............. 117                       .
    DOUBLE-CONE SYNCHRONIZER ................... 59                       .            ASSEMBLY ....................................................... 117 .
    TRIPLE-CONE SYNCHRONIZER ...................... 59                    .        SHIFT CONTROL ................................................... 120    .
    REVERSE GEAR NOISE PREVENTION FUNC-                                              Disassembly and Assembly ................................. 120         .
    TION (SYNCHRONIZING METHOD) ................. 59                      .            DISASSEMBLY ................................................. 120    .
M/T OIL ..................................................................... 60
                                                                          .            INSPECTION AFTER DISASSEMBLY ............. 120                       .
  Changing M/T Oil ................................................... 60 .            ASSEMBLY ....................................................... 121 .
    DRAINING .......................................................... 60.        SERVICE DATA AND SPECIFICATIONS (SDS) ... 123                            .
    FILLING .............................................................. 60
                                                                          .          General Specifications ......................................... 123   .
  Checking M/T Oil ................................................... 60 .            TRANSAXLE ..................................................... 123  .
    OIL LEAKAGE AND OIL LEVEL ........................ 60                 .            FINAL GEAR ..................................................... 124 .
SIDE OIL SEAL ........................................................ 61 .          Gear End Play ...................................................... 124
                                                                                                                                                            .
  Removal and Installation ....................................... 61     .          Baulk Ring Clearance .......................................... 124    .
    REMOVAL .......................................................... 61 .          Available Snap Rings ........................................... 125   .
    INSTALLATION ................................................... 61   .            6TH INPUT GEAR BUSHING ........................... 125               .
POSITION SWITCH ................................................. 62      .          Available C-Rings ................................................ 125 .
  Checking ................................................................ 62
                                                                          .            MAINSHAFT C-RING ....................................... 125         .
    BACK-UP LAMP SWITCH .................................. 62             .          Available Thrust Washer ...................................... 125     .
    PARK/NEUTRAL POSITION (PNP) SWITCH .... 62                            .            INPUT SHAFT THRUST WASHER .................. 125                     .
CONTROL LINKAGE ............................................... 63        .            DIFFERENTIAL SIDE GEAR THRUST WASHER
  Components of Control Device and Cable ............ 63                  .                                                                                 .125
  Removal and Installation ....................................... 63     .          Available Adjusting Shims .................................... 126     .
    REMOVAL .......................................................... 63 .            4TH MAIN GEAR ADJUSTING SHIM ............... 126                     .
    INSTALLATION ................................................... 64   .            INPUT SHAFT REAR BEARING ADJUSTING
AIR BREATHER HOSE ............................................ 65         .            SHIM ................................................................. 126
                                                                                                                                                            .
  Removal and Installation ....................................... 65     .            MAINSHAFT REAR BEARING ADJUSTING
TRANSAXLE ASSEMBLY ....................................... 66             .            SHIM ................................................................. 126
                                                                                                                                                            .
  Components .......................................................... 66.            REVERSE IDLER GEAR ADJUSTING SHIM ... 127                            .
  Removal and Installation ....................................... 66     .            6TH MAIN GEAR ADJUSTING SHIM ............... 127                     .
    REMOVAL .......................................................... 66 .            STRIKING ROD ADJUSTING SHIM ................. 127                    .
    INSTALLATION ................................................... 66   .          Available Shims ................................................... 127.
  Disassembly and Assembly ................................... 68         .            BEARING PRELOAD ........................................ 127         .
    COMPONENTS .................................................. 68      .            DIFFERENTIAL SIDE BEARING ADJUSTING
    DISASSEMBLY .................................................. 72     .            SHIM(S) ............................................................ 127
                                                                                                                                                            .
    ASSEMBLY ........................................................ 79  .
    ADJUSTMENT ................................................... 89     .
INPUT SHAFT AND GEARS ................................... 97              .
                                                                                                                 RS6F52H
  Disassembly and Assembly ................................... 97         .        PRECAUTIONS ...................................................... 128.
    DISASSEMBLY .................................................. 97     .         Precautions for Supplemental Restraint System
    INSPECTION AFTER DISASSEMBLY ............... 98                       .         (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
    ASSEMBLY ...................................................... 101   .         SIONER" .............................................................. 128
                                                                                                                                                         .
                                                                                    Service Notice or Precautions .............................. 128     .
                                                                                   PREPARATION ...................................................... 129.
                                                                                    Special Service Tools ........................................... 129.
                                                                                    Commercial Service Tools ................................... 131     .

Revision: December 2006                                                      MT-2                                                               2007 Sentra
NOISE, VIBRATION AND HARSHNESS (NVH)                                             MAINSHAFT AND GEARS .................................... 181           .
TROUBLESHOOTING ........................................... 133          .         Disassembly and Assembly ................................. 181       .       A
  NVH Troubleshooting Chart ................................ 133         .          DISASSEMBLY ................................................ 181    .
DESCRIPTION ....................................................... 134  .          INSPECTION AFTER DISASSEMBLY ............. 182                      .
  Cross-Sectional View .......................................... 134    .          ASSEMBLY ...................................................... 184 .       B
    DOUBLE-CONE SYNCHRONIZER ................. 135                       .       REVERSE IDLER SHAFT AND GEARS ............... 190                      .
    TRIPLE-CONE SYNCHRONIZER ................... 135                     .         Disassembly and Assembly ................................. 190       .
    REVERSE GEAR NOISE PREVENTION FUNC-                                             DISASSEMBLY ................................................ 190    .
    TION (SYNCHRONIZING METHOD) .............. 135                       .          INSPECTION AFTER DISASSEMBLY ............. 190                      .       MT
M/T OIL .................................................................. 136
                                                                         .          ASSEMBLY ...................................................... 191 .
  Changing M/T Oil ................................................ 136  .       FINAL DRIVE ......................................................... 192
                                                                                                                                                        .
    DRAINING ........................................................ 136.         Disassembly and Assembly ................................. 192       .       D
    FILLING ............................................................ 136
                                                                         .          DISASSEMBLY ................................................ 192    .
  Checking M/T Oil ................................................. 136 .          INSPECTION AFTER DISASSEMBLY ............. 192                      .
    OIL LEAKAGE AND OIL LEVEL ...................... 136                 .          ASSEMBLY ...................................................... 192 .       E
SIDE OIL SEAL ..................................................... 137  .       SHIFT CONTROL .................................................. 194   .
  Removal and Installation ..................................... 137     .         Disassembly and Assembly ................................. 194       .
    REMOVAL ........................................................ 137 .          DISASSEMBLY ................................................ 194    .
    INSTALLATION ................................................ 137    .          INSPECTION AFTER DISASSEMBLY ............. 194                      .       F
POSITION SWITCH ............................................... 138      .          ASSEMBLY ...................................................... 195 .
  Checking ............................................................. 138
                                                                         .       SERVICE DATA AND SPECIFICATIONS (SDS) ... 197                          .
    BACK-UP LAMP SWITCH ............................... 138              .         General Specifications ......................................... 197 .       G
    PARK/NEUTRAL POSITION (PNP) SWITCH .. 138                            .          TRANSAXLE .................................................... 197  .
CONTROL LINKAGE ............................................ 139         .          FINAL GEAR .................................................... 198 .
  Components of Control Device and Cable .......... 139                  .         Gear End Play ..................................................... 198
                                                                                                                                                        .       H
  Removal and Installation ..................................... 139     .         Baulk Ring Clearance .......................................... 198  .
    REMOVAL ........................................................ 139 .         Available Snap Rings .......................................... 199  .
    INSTALLATION ................................................ 140    .          6TH INPUT GEAR BUSHING .......................... 199               .
                                                                                                                                                                 I
AIR BREATHER HOSE ......................................... 141          .         Available C-Rings ................................................ 199
                                                                                                                                                        .
  Removal and Installation ..................................... 141     .          MAINSHAFT C-RING ....................................... 199        .
TRANSAXLE ASSEMBLY ..................................... 142             .         Available Thrust Washer ...................................... 199   .
  Components ........................................................ 142.          INPUT SHAFT THRUST WASHER .................. 199                    .       J
  Removal and Installation ..................................... 142     .          DIFFERENTIAL SIDE GEAR THRUST WASHER
    REMOVAL ........................................................ 142 .                                                                              . 199
    INSTALLATION ................................................ 142    .         Available Adjusting Shims ................................... 200    .       K
  Disassembly and Assembly ................................ 144          .          4TH MAIN GEAR ADJUSTING SHIM .............. 200                     .
    COMPONENTS ............................................... 144       .          INPUT SHAFT REAR BEARING ADJUSTING
    DISASSEMBLY ................................................ 148     .          SHIM ................................................................ 200
                                                                                                                                                        .
                                                                                                                                                                L
    ASSEMBLY ...................................................... 155  .          MAINSHAFT REAR BEARING ADJUSTING
    ADJUSTMENT ................................................. 165     .          SHIM ................................................................ 200
                                                                                                                                                        .
INPUT SHAFT AND GEARS ................................. 173              .          REVERSE IDLER GEAR ADJUSTING SHIM .. 201                            .
  Disassembly and Assembly ................................ 173          .          6TH MAIN GEAR ADJUSTING SHIM .............. 201                     .       M
    DISASSEMBLY ................................................ 173     .          STRIKING ROD ADJUSTING SHIM ................ 201                    .
    INSPECTION AFTER DISASSEMBLY ............ 174                        .         Available Shims ................................................... 201
                                                                                                                                                        .
    ASSEMBLY ...................................................... 177  .          BEARING PRELOAD ....................................... 201         .
                                                                                    DIFFERENTIAL SIDE BEARING ADJUSTING
                                                                                    SHIM(S) ............................................................ 201
                                                                                                                                                        .




Revision: December 2006                                                    MT-3                                                             2007 Sentra
                                              PRECAUTIONS
                                                                                                     [RS6F94R]
PRECAUTIONS                                                         PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           UCS0078N


The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
G    To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
     in the event of a collision which would result in air bag inflation, all maintenance must be per-
     formed by an authorized NISSAN/INFINITI dealer.
G    Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
     sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
     Bag Module, see the SRS section.
G    Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
     Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
     harness connectors.
Precautions                                                                                                   UCS0078O


G   If transaxle assembly is removed from the vehicle, always replace CSC (Concentric Slave Cylinder).
    Installed CSC returns to the original position when removing transaxle assembly. Dust on clutch disc slid-
    ing parts may damage CSC seal, and may cause clutch fluid leakage.
G   Do not reuse transaxle oil.
G   Drain, fill and check transaxle oil with the vehicle on level surface.
G   During removal or installation, keep inside of transaxle clear of dust or dirt.
G   Check for the correct installation orientation prior to removal or disassembly. If matching marks are
    required, be certain they do not interfere with the function of the parts they are applied to.
G   In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
    tightening sequence is specified, follow it.
G   Be careful not to damage the sliding surfaces and mating surfaces of parts.




Revision: December 2006                               MT-4                                             2007 Sentra
                                                       PREPARATION
                                                                                                                            [RS6F94R]
PREPARATION                                                                                                                         PFP:00002
                                                                                                                                                  A
Special Service Tools                                                                                                                  UCS0078P

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
  Tool number                                                                            Description
                                                                                                                                                  B
  (Kent-Moore No.)
  Tool name
  KV381054S0                                                                             Removing mainshaft front bearing outer race
  (J-34286)                                                                                                                                       MT
  Puller


                                                                                                                                                  D

                                                                        ZZA0601D


  KV38100200                                                                             G   Installing mainshaft front bearing outer race        E
  (     -- )                                                                             G   Installing mainshaft rear bearing outer race
  Drift
                                                                                         G   Installing differential side bearing outer race
                                                                                             (clutch housing side)                                F
                                                                                         a: 65 mm (2.56 in) dia.
                                                                                         b: 49 mm (1.93 in) dia.
                                                                        ZZA1143D
                                                                                                                                                  G
  ST33220000                                                                             Installing input shaft oil seal
  (     -- )                                                                             a: 37 mm (1.46 in) dia.
  Drift                                                                                  b: 31 mm (1.22 in) dia.
                                                                                         c: 22 mm (0.87 in) dia.                                  H



                                                                        ZZA1046D                                                                   I
  ST33400001                                                                             Installing differential side bearing outer race
  (J-26082)                                                                              (transaxle case side)
  Drift                                                                                  a: 60 mm (2.36 in) dia.                                  J
                                                                                         b: 47 mm (1.85 in) dia.


                                                                                                                                                  K
                                                                        ZZA0814D


  KV38100300                                                                             Installing differential side oil seal
  (J-25523)                                                                              a: 54 mm (2.13 in) dia.                                  L
  Drift                                                                                  b: 46 mm (1.81 in) dia.
                                                                                         c: 32 mm (1.26 in) dia.

                                                                                                                                                  M

                                                                        ZZA1046D


  ST36720030                                                                             G   Installing input shaft rear bearing
  (     -- )                                                                             G   Installing mainshaft front bearing inner race
  Drift
                                                                                         a: 70 mm (2.76 in) dia.
                                                                                         b: 40 mm (1.57 in) dia.
                                                                                         c: 29 mm (1.14 in) dia.

                                                                        ZZA0978D




Revision: December 2006                                         MT-5                                                             2007 Sentra
                           PREPARATION
                                                                              [RS6F94R]
  Tool number                                 Description
  (Kent-Moore No.)
  Tool name
  ST33052000                                  G   Removing mainshaft rear bearing inner race
  (     -- )                                  G   Removing 6th main gear
  Drift
                                              G   Removing 5th main gear
                                              G   Removing 4th main gear
                                              G   Removing 1st main gear
                                              G   Removing 1st-2nd synchronizer assembly
                                              G   Removing 2nd main gear
                                              G   Removing bushing
                                              G   Removing 3rd main gear
                                  ZZA0969D
                                              G   Removing mainshaft front bearing inner
                                                  race
                                              a: 22 mm (0.87 in) dia.
                                              b: 28 mm (1.10 in) dia.
  KV32102700                                  G   Installing bushing
  (     -- )                                  G   Installing 2nd main gear
  Drift
                                              G   Installing 3rd main gear
                                              G   Installing 4th main gear
                                              G   Installing 5th main gear
                                              G   Installing 6th main gear
                                  S-NT065     a: 54 mm (2.13 in) dia.
                                              b: 32 mm (1.26 in) dia.
  ST30901000                                  Installing mainshaft rear bearing inner race
  (J-26010-01)                                a: 79 mm (3.11 in) dia.
  Drift                                       b: 45 mm (1.77 in) dia.
                                              c: 35.2 mm (1.386 in) dia.



                                  ZZA0978D


  ST33061000                                  Removing differential side bearing inner race
  (J-8107-2)                                  (clutch housing side)
  Drift                                       a: 28.5 mm (1.122 in) dia.
                                              b: 38 mm (1.50 in) dia.



                                  ZZA0969D



Commercial Service Tools                                                                UCS0078Q


  Tool name                                   Description
  Socket                                      Removing and installing drain plug
                                              a: 8 mm (0.31 in)
                                              b: 5 mm (0.20 in)




                                  PCIB1776E


  Spacer                                      Removing mainshaft front bearing outer race
                                              a: 25 mm (0.98 in) dia.
                                              b: 25 mm (0.98 in)




                                  PCIB1780E



Revision: December 2006       MT-6                                              2007 Sentra
                          PREPARATION
                                                                                    [RS6F94R]
  Tool name                                  Description
                                                                                                   A
  Drift                                      G   Installing bushing
                                             G   Installing shift lever oil seal
                                             G   Installing select lever oil seal
                                                                                                   B
                                             a: 17 mm (0.67 in) dia.


                                 S-NT063                                                           MT
  Drift                                      Installing input shaft front bearing
                                             a: 35 mm (1.38 in) dia.
                                             b: 25 mm (0.98 in) dia.
                                                                                                   D



                                                                                                   E
                                 S-NT065


  Drift                                      Removing input shaft rear bearing
                                             a: 24 mm (0.94 in) dia.
                                                                                                   F



                                                                                                   G
                                 PCIB1779E


  Drift                                      G   Removing differential side bearing inner
                                                 race (transaxle case side)                        H
                                             G   Installing input shaft rear bearing
                                             a: 43 mm (1.69 in) dia.
                                                                                                    I

                                 NT109


  Drift                                      Installing differential side bearing inner race       J
                                             (clutch housing side)
                                             a: 45 mm (1.77 in) dia.
                                             b: 39 mm (1.54 in) dia.
                                                                                                   K


                                 S-NT474
                                                                                                   L
  Drift                                      Installing differential side bearing inner race
                                             (transaxle case side)
                                             a: 52 mm (2.05 in) dia.
                                             b: 45 mm (1.77 in) dia.                               M



                                 S-NT474


  Power tool                                 G   Loosening bolts and nuts




                                 PBIC0190E




Revision: December 2006      MT-7                                                    2007 Sentra
        NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
                                                                                                                                                                                                                                                                                                                        [RS6F94R]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING                                                                                                                                                                                                                                                                                         PFP:00003

NVH Troubleshooting Chart                                                                                                                                                                                                                                                                                                                                      UCS0078R


Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.




                                                                                                                                                MT-19



                                                                                                                                                                                     MT-23


                                                                                                                                                                                                                MT-14


                                                                                                                                                                                                                                               MT-23




                                                                                                                                                                                                                                                                                                                        MT-20
                                                                              MT-11
 Reference page




                                                                                                                                                                                                                SHIFT CONTROL LINKAGE (Worn)




                                                                                                                                                                                                                                                                                                                                BAULK RING (Worn or damaged)
 SUSPECTED PARTS




                                                                                                                                                                                                                                                                                            BEARING (Worn or damaged)
                                                                                                                                                        OIL SEAL (Worn or damaged)
 (Possible cause)




                                                                                                                                                                                                                                                                                                                                                                 INSERT SPRING (Damaged)
                                                                                                                                                                                     O-RING (Worn or damaged)




                                                                                                                                                                                                                                                                   GEAR (Worn or damaged)
                                                                                                  OIL (Oil level is high.)


                                                                                                                             GASKET (Damaged)




                                                                                                                                                                                                                                               SHIFT FORK (Worn)
                                                    OIL (Oil level is low.)


                                                                              OIL (Wrong oil.)




                  Noise                                      1                      2                                                                                                                                                                                      3                          3
                  Oil leakage                                                       3                      1                       2                              2                           2
 Symptoms
                  Hard to shift or will not shift                                   1                      1                                                                                                               2                                                                                                               3                              3
                  Jumps out of gear                                                                                                                                                                                        1                         2                     2




Revision: December 2006                                                                          MT-8                                                                                                                                                                                                                     2007 Sentra
                                              DESCRIPTION
                                                                                                          [RS6F94R]
DESCRIPTION                                                                                                   PFP:00000
                                                                                                                               A
Cross-Sectional View                                                                                                UCS0078S




                                                                                                                               B



                                                                                                                               MT



                                                                                                                               D



                                                                                                                               E



                                                                                                                               F



                                                                                                                               G


                                                                                                                               H



                                                                                                                                I


                                                                                                                               J



                                                                                                                               K


                                                                                                                               L



                                                                                                                               M




                                                                                                             SCIA7618E

   1.   Clutch housing                 2.   CSC (Concentric Slave Cylinder)   3.   Reverse idler shaft
   4.   Reverse input gear             5.   Reverse output gear               6.   2nd input gear
   7.   3rd input gear                 8.   3rd-4th synchronizer assembly     9.   4th input gear
   10. 5th input gear                  11. 5th-6th synchronizer assembly      12. 6th input gear
   13. Transaxle case                  14. 6th main gear                      15. 5th main gear
   16. 4th main gear                   17. 3rd main gear                      18. 2nd main gear
   19. 1st-2nd synchronizer assembly   20. 1st main gear                      21. Differential assembly
   22. Final gear                      23. Mainshaft                          24. Input shaft




Revision: December 2006                                MT-9                                                2007 Sentra
                                             DESCRIPTION
                                                                        [RS6F94R]
TRIPLE-CONE SYNCHRONIZER
Triple-cone synchronizer is used for the 1st and the 2nd gears to
reduce operating force of the shift lever.
G    1st main gear (1)
G    1st-2nd coupling sleeve (2)
G    Insert key (3)
G    Outer baulk ring (4)
G    2nd main gear (5)
G    Synchronizer cone (6)
G    Inner baulk ring (7)
                                                                            SCIA7636E
G    1st-2nd synchronizer hub (8)
REVERSE GEAR NOISE PREVENTION FUNCTION (SYNCHRONIZING METHOD)
Reverse gear assembly consists of reverse input gear, return spring,
reverse baulk ring and reverse output gear. When the shift lever is
shifted to the reverse position, the construction allows smooth shift
operation by stopping the reverse idler shaft rotation by frictional
force of synchronizer.
G    Reverse fork rod (1)
G    Reverse output gear (2)
G    Return spring (3)
G    Reverse baulk ring (4)
G    Reverse input gear (5)                                                 SCIA7621E




Revision: December 2006                            MT-10                 2007 Sentra
                                                        M/T OIL
                                                                                 [RS6F94R]
M/T OIL                                                                             PFP:KLD20
                                                                                                    A
Changing M/T Oil                                                                         UCS0078T

DRAINING
1.   Start engine and let it run to warm up transaxle.
                                                                                                    B
2.   Stop engine. Remove drain plug (1) and drain oil.
3.   Install a new gasket onto drain plug (1) and install it into tran-
     saxle. Tighten drain plug to specification. Refer to MT-19, "Case                              MT
     and Housing Components" .
     CAUTION:
     Do not reuse gasket.
                                                                                                    D



                                                                                                    E
                                                                                      SCIA7622E


FILLING
1.   Remove filler plug (1). Fill with new oil until oil level reaches the                          F
     specified limit at filler plug hole as shown.
        Oil grade and capacity
                                                                                                    G
           : Refer to MA-14, "MR20DE" .
2.   After refilling oil, check oil level. Install a new gasket on filler plug
     (1), then install it into transaxle. Tighten filler plug to specifica-                         H
     tion. Refer to MT-19, "Case and Housing Components" .
     CAUTION:
     Do not reuse gasket.
                                                                                      SCIA7623E      I

Checking M/T Oil                                                                         UCS0078U

OIL LEAKAGE AND OIL LEVEL
                                                                                                    J
1.   Make sure that oil is not leaking from transaxle or around it.
2.   Remove filler plug (1) and check oil level at filler plug hole as
     shown.
                                                                                                    K
     CAUTION:
     Do not start engine while checking oil level.
3.   Install a new gasket onto filler plug (1) and install it into tran-
                                                                                                    L
     saxle. Tighten filler plug to specification. Refer to MT-19, "Case
     and Housing Components" .
     CAUTION:
     Do not reuse gasket.                                                                           M

                                                                                      SCIA7623E




Revision: December 2006                                  MT-11                    2007 Sentra
                                                SIDE OIL SEAL
                                                                                                [RS6F94R]
SIDE OIL SEAL                                                                                        PFP:32113

Removal and Installation                                                                                 UCS0078V

REMOVAL
1.   Remove front drive shafts from transaxle assembly. Refer to FAX-8, "Removal and Installation (Left Side)"
     and FAX-10, "Removal and Installation (Right Side)" .
2.   Remove differential side oil seal (1) using a suitable tool.
     CAUTION:
     Be careful not to damage transaxle case and clutch hous-
     ing.




                                                                                                      SCIA7625E


INSTALLATION
Installation is in the reverse order of removal.
G    Install differential side oil seal (1) to clutch housing and transaxle
     case using Tool (A).
        Tool number         A: ST38100300 (J-25523)
G    Check oil level after installation. Refer to MT-11, "Checking M/T
     Oil" .
     CAUTION:
     Do not reuse oil seal.


                                                                                                      SCIA7626E




Revision: December 2006                                MT-12                                      2007 Sentra
                                           POSITION SWITCH
                                                                                                [RS6F94R]
POSITION SWITCH                                                                                     PFP:32005
                                                                                                                  A
Checking                                                                                               UCS0078W


NOTE:
For removal and installation of the switches, refer to MT-19, "Case and Housing Components" .                     B
BACK-UP LAMP SWITCH
G      Check continuity between terminals 1 and 2.
                                                                                                                  MT
                Gear position                    Continuity
    Reverse                                          Yes
    Except reverse                                   No                                                           D



                                                                                                                  E


                                                                                                     PCIB1781E
                                                                                                                  F
PARK/NEUTRAL POSITION SWITCH
G      Check continuity between terminals 2 and 3.
                Gear position                    Continuity                                                       G
    Neutral                                          Yes
    Except neutral                                   No                                                           H



                                                                                                                   I


                                                                                                                  J



                                                                                                                  K


                                                                                                                  L



                                                                                                                  M




Revision: December 2006                              MT-13                                       2007 Sentra
                                                    CONTROL LINKAGE
                                                                                                       [RS6F94R]
CONTROL LINKAGE                                                                                            PFP:34103

Components of Control Device and Cable                                                                           UCS0078X




                                                                                                          PCIB1984E

     1.   Control lever knob                   2.   Control lever         3.   Control device assembly
     4.   Select cable                         5.   Shift cable           6.   Lock plate
     7.   Tapping bolt                         8.   Cable bracket         9.   Cable support bracket
     Refer to GI-10, "Components" for the symbols in the figure.

Removal and Installation                                                                                         UCS0078Y

REMOVAL
1.    Remove battery. Refer to SC-7, "Removal and Installation MR20DE" .
2.    Remove air cleaner and air duct. Refer to EM-18, "Removal and Installation" .
3.    Remove shift cable from shift lever.




                                                                                                             BCIA0052E




Revision: December 2006                                           MT-14                                  2007 Sentra
                                          CONTROL LINKAGE
                                                                                                 [RS6F94R]
4.    Remove select cable from select lever.
                                                                                                                   A



                                                                                                                   B



                                                                                                                   MT

                                                                                                       BCIA0057E

                                                                                                                   D
5.    Shift control lever to neutral position.
6.    Remove control lever knob.
7.    Remove center console assembly. Refer to IP-17, "CENTER CONSOLE ASSEMBLY" .                                  E
8.    Remove control device assembly nuts.
9.    Remove exhaust front tube, center muffler and heat shield. Refer to EX-2, "Removal and Installation" .
10.   Remove cable support bracket.                                                                                F
11.   Remove select cable and shift cable from cable bracket.
12.   Remove control device assembly from the vehicle.
                                                                                                                   G
INSTALLATION
Installation is in the reverse order of removal.
NOTE:                                                                                                              H
Tapping work for tapping bolt is not applied to new clutch housing. Do not perform tapping by other than
screwing tapping bolt because tapping is formed by screwing tapping bolt into clutch housing.
G    Securely install each cable to shift lever and select lever.                                                   I
G    Be careful about the installation direction, and screw control
     lever knob onto control lever.
                                                                                                                   J



                                                                                                                   K


                                                                                                                   L
                                                                                                       SCIA7630E



G     When control lever 



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