Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2006-2007 Approved G35-V35-Sedan-2006 em

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ENGINE MECHANICAL


B ENGINE

                                                                                                                                                                       A




                                                                                                   SECTION
                                                                                          ENGINE MECHANICAL
                                                                                                                               EM                                      EM



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                                                                   CONTENTS
PRECAUTIONS ......................................................... 4  .         INTAKE MANIFOLD COLLECTOR ......................... 20                     .        F
 Precautions Necessary for Steering Wheel Rotation                                   Components .......................................................... 20 .
 After Battery Disconnect ......................................... 4    .           Removal and Installation ....................................... 20      .
   OPERATION PROCEDURE ................................ 4                .            REMOVAL .......................................................... 20   .        G
 Precautions for Draining Engine Coolant ................ 4              .            INSPECTION AFTER REMOVAL ...................... 22                      .
 Precautions for Disconnecting Fuel Piping ............. 4               .            INSTALLATION .................................................. 23      .
 Precautions for Removal and Disassembly ............ 4                  .         INTAKE MANIFOLD ................................................ 25        .
                                                                                                                                                                       H
 Precautions for Inspection, Repair and Replace-                                     Components .......................................................... 25 .
 ment ........................................................................ 4
                                                                         .           Removal and Installation ....................................... 25      .
 Precautions for Assembly and Installation .............. 4              .            REMOVAL .......................................................... 25   .
 Parts Requiring Angle Tightening ............................ 6         .            INSPECTION AFTER REMOVAL ...................... 26                      .         I
 Precautions for Liquid Gasket ................................. 6       .            INSTALLATION .................................................. 26      .
   REMOVAL OF LIQUID GASKET SEALING ......... 6                          .         EXHAUST MANIFOLD AND THREE WAY CATA-
   LIQUID GASKET APPLICATION PROCEDURE 6                                 .....     LYST ......................................................................... 27
                                                                                                                                                              .        J
PREPARATION .......................................................... 8 .           Components .......................................................... 27 .
 Special Service Tools (SST) .................................... 8      .           Removal and Installation ....................................... 27      .
 Commercial Service Tools ..................................... 10       .            REMOVAL .......................................................... 27   .
                                                                                                                                                                       K
NOISE, VIBRATION AND HARSHNESS (NVH)                                                  INSPECTION AFTER REMOVAL ...................... 29                      .
TROUBLESHOOTING ............................................. 13         .            INSTALLATION .................................................. 29      .
 NVH Troubleshooting --Engine Noise .................. 13                .         OIL PAN AND OIL STRAINER ................................ 31               .
 Use the Chart Below to Help You Find the Cause                                      Components (2WD Models) .................................. 31            .        L
 of the Symptom. .................................................... 14 .           Removal and Installation (2WD Models) ............... 31                 .
DRIVE BELTS .......................................................... 15.            REMOVAL .......................................................... 31   .
 Checking Drive Belts ............................................. 15   .            INSPECTION AFTER REMOVAL ...................... 33                      .        M
 Tension Adjustment ............................................... 15   .            INSTALLATION .................................................. 33      .
   ALTERNATOR AND POWER STEERING OIL                                                  INSPECTION AFTER INSTALLATION ............... 36                        .
   PUMP BELT ....................................................... 16  .           Components (AWD Models) .................................. 37            .
   A/C COMPRESSOR BELT ................................ 16               .           Removal and Installation (AWD Models) ............... 37                 .
 Removal and Installation ....................................... 16     .            REMOVAL .......................................................... 37   .
   REMOVAL .......................................................... 16 .            INSPECTION AFTER REMOVAL ...................... 40                      .
   INSTALLATION .................................................. 17    .            INSTALLATION .................................................. 40      .
AIR CLEANER AND AIR DUCT .............................. 18               .            INSPECTION AFTER INSTALLATION ............... 43                        .
 Components .......................................................... 18.         IGNITION COIL ........................................................ 44  .
 Removal and Installation ....................................... 18     .           Components .......................................................... 44 .
   REMOVAL .......................................................... 18 .           Removal and Installation ....................................... 44      .
   INSTALLATION .................................................. 18    .            REMOVAL .......................................................... 44   .
 Changing Air Cleaner Filter ................................... 19      .            INSTALLATION .................................................. 44      .
   INSPECTION ..................................................... 19   .         SPARK PLUG (PLATINUM-TIPPED TYPE) ............ 45                          .
   REMOVAL .......................................................... 19 .
   INSTALLATION .................................................. 19    .


Revision: 2006 August                                                        EM-1                                                          2006 G35 Sedan
  Components .......................................................... 45
                                                                       .        Removal and Installation ...................................... 129      .
  Removal and Installation ....................................... 45  .          REMOVAL ......................................................... 129  .
   REMOVAL .......................................................... 45
                                                                       .          INSPECTION AFTER REMOVAL ..................... 130                     .
   INSPECTION AFTER REMOVAL ....................... 45                 .          INSTALLATION ................................................. 131     .
   INSTALLATION ................................................... 46 .          INSPECTION AFTER INSTALLATION ............. 132                        .
FUEL INJECTOR AND FUEL TUBE ....................... 47                 .        Components ......................................................... 133 .
  Components .......................................................... 47
                                                                       .        Disassembly and Assembly ................................. 133           .
  Removal and Installation ....................................... 47  .          DISASSEMBLY ................................................. 133      .
   REMOVAL .......................................................... 47
                                                                       .          ASSEMBLY ....................................................... 134   .
   INSTALLATION ................................................... 50 .        Inspection After Disassembly ............................... 135         .
   INSPECTION AFTER INSTALLATION ............... 52                    .          VALVE DIMENSIONS ....................................... 135           .
ROCKER COVER .................................................... 53   .          VALVE GUIDE CLEARANCE ........................... 136                  .
  Components .......................................................... 53
                                                                       .          VALVE GUIDE REPLACEMENT ...................... 136                     .
  Removal and Installation ....................................... 53  .          VALVE SEAT CONTACT ................................... 138             .
   REMOVAL .......................................................... 53
                                                                       .          VALVE SEAT REPLACEMENT ......................... 138                   .
   INSTALLATION ................................................... 54 .          VALVE SPRING SQUARENESS ...................... 139                     .
FRONT TIMING CHAIN CASE ................................ 56            .          VALVE SPRING DIMENSIONS AND VALVE
  Removal and Installation ....................................... 56  .          SPRING PRESSURE LOAD ............................. 139                 .
   REMOVAL .......................................................... 56
                                                                       .       ENGINE ASSEMBLY .............................................. 140        .
   INSTALLATION ................................................... 60 .        Components (2WD Models) ................................. 140            .
   INSPECTION AFTER INSTALLATION ............... 66                    .        Removal and Installation (2WD Models) .............. 140                 .
TIMING CHAIN ......................................................... 68
                                                                       .          REMOVAL ......................................................... 141  .
  Components (M/T Models) .................................... 68      .          INSTALLATION ................................................. 144     .
  Components (A/T Models) ..................................... 70     .          INSPECTION AFTER INSTALLATION ............. 144                        .
  Removal and Installation (M/T Models) ................. 71           .        Components (AWD Models) ................................ 146             .
   REMOVAL .......................................................... 71
                                                                       .        Removal and Installation (AWD Models) ............. 146                  .
   INSPECTION AFTER REMOVAL ....................... 78                 .          REMOVAL ......................................................... 147  .
   INSTALLATION ................................................... 79 .          INSTALLATION ................................................. 150     .
   INSPECTION AFTER INSTALLATION ............... 90                    .          INSPECTION AFTER INSTALLATION ............. 150                        .
  Removal and Installation (A/T Models) .................. 90          .       CYLINDER BLOCK ................................................ 151       .
   REMOVAL .......................................................... 90
                                                                       .        Components ......................................................... 151 .
   INSPECTION AFTER REMOVAL ....................... 97                 .        Disassembly and Assembly ................................. 152           .
   INSTALLATION ................................................... 98 .          DISASSEMBLY ................................................. 152      .
   INSPECTION AFTER INSTALLATION ............. 108                     .          ASSEMBLY ....................................................... 157   .
CAMSHAFT ............................................................ 109
                                                                       .        How to Select Piston and Bearing ....................... 164             .
  Components ........................................................ 109
                                                                       .          DESCRIPTION ................................................. 164      .
  Removal and Installation ..................................... 110   .          HOW TO SELECT PISTON .............................. 165                .
   REMOVAL ........................................................ 110.          HOW TO SELECT CONNECTING ROD BEAR-
   INSPECTION AFTER REMOVAL ......................111                  .          ING .................................................................... 166
                                                                                                                                                         .
   INSTALLATION ................................................. 114  .          HOW TO SELECT MAIN BEARING ................. 167                       .
   INSPECTION AFTER INSTALLATION ............. 119                     .        Inspection After Disassembly ............................... 170         .
  Valve Clearance ................................................... 120
                                                                       .          CRANKSHAFT END PLAY ............................... 170                .
   INSPECTION .................................................... 120 .          CONNECTING ROD SIDE CLEARANCE ........ 170                             .
   ADJUSTMENT ................................................. 123    .          PISTON TO PISTON PIN OIL CLEARANCE .... 170                            .
OIL SEAL ............................................................... 125
                                                                       .          PISTON RING SIDE CLEARANCE .................. 171                      .
  Removal and Installation of Valve Oil Seal .......... 125            .          PISTON RING END GAP ................................. 171              .
   REMOVAL ........................................................ 125.          CONNECTING ROD BEND AND TORSION .... 172                               .
   INSTALLATION ................................................. 125  .          CONNECTING ROD BIG END DIAMETER ..... 172                              .
  Removal and Installation of Front Oil Seal .......... 126            .          CONNECTING ROD BUSHING OIL CLEAR-
   REMOVAL ........................................................ 126.          ANCE ................................................................ 173
                                                                                                                                                         .
   INSTALLATION ................................................. 126  .          CYLINDER BLOCK DISTORTION ................... 174                      .
  Removal and Installation of Rear Oil Seal ........... 126            .          MAIN BEARING HOUSING INNER DIAMETER.174
   REMOVAL ........................................................ 126.          PISTON TO CYLINDER BORE CLEARANCE . 174
   INSTALLATION ................................................. 127  .          CRANKSHAFT MAIN JOURNAL DIAMETER .. 176                                .
CYLINDER HEAD .................................................. 128   .          CRANKSHAFT PIN JOURNAL DIAMETER ..... 176                              .
  On-Vehicle Service .............................................. 128.          CRANKSHAFT OUT-OF-ROUND AND TAPER.176
   CHECKING COMPRESSION PRESSURE ...... 128                            .          CRANKSHAFT RUNOUT ................................. 176                .
  Components ........................................................ 129
                                                                       .          CONNECTING ROD BEARING OIL CLEAR-


Revision: 2006 August                                                     EM-2                                                        2006 G35 Sedan
   ANCE ............................................................... 177
                                                                      .       SERVICE DATA AND SPECIFICATIONS (SDS) ... 181                     .
   MAIN BEARING OIL CLEARANCE ................. 177                   .        Standard and Limit ............................................... 181
                                                                                                                                                .       A
   CRUSH HEIGHT OF MAIN BEARING ............. 178                     .          GENERAL SPECIFICATIONS .......................... 181          .
   CRUSH HEIGHT OF CONNECTING ROD                                                DRIVE BELT ..................................................... 182
                                                                                                                                                .
   BEARING ......................................................... 178
                                                                      .          INTAKE MANIFOLD COLLECTOR, INTAKE                                      EM
   MAIN BEARING CAP BOLT OUTER DIAMETER 178                           .          MANIFOLD AND EXHAUST MANIFOLD ......... 182                    .
   CONNECTING ROD BOLT OUTER DIAMETER                                            SPARK PLUG ................................................... 182
                                                                                                                                                .
   (A/T MODELS) ................................................. 178 .          CAMSHAFT AND CAMSHAFT BEARING ....... 183                      .
   FLYWHEEL DEFLECTION .............................. 179             .          CYLINDER HEAD ............................................ 185 .       C
   MOVEMENT AMOUNT OF FLYWHEEL .......... 179                         .          CYLINDER BLOCK .......................................... 188  .
   DRIVE PLATE (A/T MODELS) ......................... 180             .          PISTON, PISTON RING AND PISTON PIN ..... 189                   .
   OIL JET ............................................................ 180
                                                                      .          CONNECTING ROD ........................................ 190    .       D
   OIL JET RELIEF VALVE .................................. 180        .          CRANKSHAFT ................................................. 191
                                                                                                                                                .
                                                                                 MAIN BEARING ............................................... 192
                                                                                                                                                .
                                                                                 CONNECTING ROD BEARING ....................... 193             .       E



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Revision: 2006 August                                                   EM-3                                                   2006 G35 Sedan
                                              PRECAUTIONS

PRECAUTIONS                                                           PFP:00001

Precautions Necessary for Steering Wheel Rotation After Battery Disconnect
                                                                                                           NBS002RY

NOTE:
q    This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
     VEHICLE IMMOBILIZER SYSTEM - NATS).
q    Remove and install all control units after disconnecting both battery cables with the ignition knob in the
     LOCK position.
q    Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
     work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.   Connect both battery cables.
     NOTE:
     Supply power using jumper cables if battery is discharged.
2.   Use the Intelligent Key or mechanical key to turn the ignition switch to the ACC position. At this time, the
     steering lock will be released.
3.   Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
     rotated.
4.   Perform the necessary repair operation.
5.   When the repair work is completed, return the ignition switch to the LOCK position before connecting
     the battery cables. (At this time, the steering lock mechanism will engage.)
6.   Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Draining Engine Coolant                                                                    NBS002RZ


Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel Piping                                                                  NBS002S0


q    Before starting work, make sure no fire or spark producing items are in the work area.
q    Release fuel pressure before disconnecting and disassembly.
q    After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and Disassembly                                                                    NBS002S1


q    When instructed to use special service tools, use the specified tools. Always be careful to work safely,
     avoid forceful or uninstructed operations.
q    Exercise maximum care to avoid damage to mating or sliding surfaces.
q    Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
q    Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
q    When loosening bolts and nuts, as a basic rule, start with the one furthest outside, then the one diagonally
     opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
     used where noted in the step.
Precautions for Inspection, Repair and Replacement                                                         NBS002S2


Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and Installation                                                                  NBS002S3


q    Use torque wrench to tighten bolts or nuts to specification.



Revision: 2006 August                                EM-4                                       2006 G35 Sedan
                                            PRECAUTIONS

q   When tightening bolts and nuts, as a basic rule, equally tighten in several different steps starting with the
    ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci- A
    fied, do exactly as specified.
q   Replace with new gasket, packing, oil seal or O-ring.
q   Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins, EM
    make sure that dowel pins are installed in the original position.
q   Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
    any restriction and blockage.                                                                                  C
q   Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
    Before assembly, oil sliding surfaces well.
q   Release air within route when refilling after draining engine coolant.                                         D
q   After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
    exhaust systems for leakage.
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Revision: 2006 August                              EM-5                                       2006 G35 Sedan
                                               PRECAUTIONS

Parts Requiring Angle Tightening                                                                        NBS002S4


q    Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:



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