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ENGINE COOLING SYSTEM


B ENGINE

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                                                                         ENGINE COOLING SYSTEM
                                                                                               SECTION                    CO                                     CO



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                                                                CONTENTS
PRECAUTIONS ......................................................... 2.        RADIATOR (ALUMINUM TYPE) .............................. 16              .        F
 Precautions for Battery Service ............................... 2     .         Disassembly and Assembly ................................... 16        .
 Precautions for Supplemental Restraint System                                     PREPARATION .................................................. 16    .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                           DISASSEMBLY .................................................. 16    .        G
 SIONER" ................................................................. 2
                                                                       .           ASSEMBLY ........................................................ 17 .
 Precautions for Liquid Gasket ................................. 2     .           INSPECTION ..................................................... 19  .
   REMOVAL OF LIQUID GASKET SEALING ......... 2                        .        COOLING FAN ......................................................... 20.
                                                                                                                                                                 H
   LIQUID GASKET APPLICATION PROCEDURE 2                               .....     Removal and Installation ....................................... 20    .
PREPARATION .......................................................... 4
                                                                       .           REMOVAL .......................................................... 20.
 Special Service Tools .............................................. 4.           INSTALLATION .................................................. 20   .
 Commercial Service Tools ....................................... 5    .           DISASSEMBLY AND ASSEMBLY ...................... 20                   .         I
OVERHEATING CAUSE ANALYSIS ......................... 6                 .        WATER PUMP ......................................................... 22 .
 Troubleshooting Chart ............................................. 6 .         Removal and Installation ....................................... 22    .
COOLING SYSTEM ................................................... 8   .           REMOVAL .......................................................... 22.        J
 Cooling Circuit ......................................................... 8
                                                                       .           INSPECTION AFTER REMOVAL ...................... 24                   .
 System Chart .......................................................... 9
                                                                       .           INSTALLATION .................................................. 24   .
ENGINE COOLANT ................................................. 10    .           INSPECTION AFTER INSTALLATION ............... 25                     .
                                                                                                                                                                 K
 Inspection .............................................................. 10
                                                                       .        WATER INLET AND THERMOSTAT ASSEMBLY ... 27
   LEVEL CHECK .................................................. 10   .         Removal and Installation ....................................... 27    .
   LEAK CHECK .................................................... 10  .           REMOVAL .......................................................... 27.
 Changing Engine Coolant ..................................... 10      .           INSPECTION AFTER REMOVAL ...................... 27                   .        L
   DRAINING ENGINE COOLANT ........................ 10                 .           INSTALLATION .................................................. 27   .
   REFILLING ENGINE COOLANT ........................11                 .           INSPECTION AFTER INSTALLATION ............... 28                     .
   FLUSHING COOLING SYSTEM ........................ 12                 .        WATER OUTLET AND WATER PIPING .................. 29                     .        M
RADIATOR ............................................................... 13
                                                                       .         Removal and Installation ....................................... 29    .
 Removal and Installation ....................................... 13   .           REMOVAL .......................................................... 29.
   REMOVAL .......................................................... 13
                                                                       .           INSTALLATION .................................................. 29   .
   INSTALLATION .................................................. 14  .           INSPECTION AFTER INSTALLATION ............... 29                     .
   INSPECTION AFTER INSTALLATION .............. 15                     .        SERVICE DATA AND SPECIFICATIONS (SDS) ..... 31                          .
 Checking Radiator Cap ......................................... 15    .         Engine Coolant Capacity (Approximate) ............... 31               .
 Checking Radiator ................................................. 15.         Radiator ................................................................. 31
                                                                                                                                                        .
                                                                                 Thermostat ............................................................ 31
                                                                                                                                                        .
                                                                                 Tightening Torque .................................................. 31.




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                                              PRECAUTIONS

PRECAUTIONS                                                                                               PFP:00001

Precautions for Battery Service                                                                                ABS00B3M


Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                            ABS00A1N


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:
q    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.
q    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.
q    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 for Liquid Gasket                                                                                  ABS00A1O

REMOVAL OF LIQUID GASKET SEALING
q    After removing mounting bolts and nuts, separate the mating
     surface using seal cutter (SST) and remove old liquid gasket
     sealing.
     CAUTION:
     Be careful not to damage the mating surfaces.
q    In areas where seal cutter (SST) is difficult to use, use plastic
     hammer to lightly tap (1) seal cutter where liquid gasket is
     applied. Use plastic hammer to slide seal cutter (2) by tapping
     on the side.
     CAUTION:
     If for some unavoidable reason tool such as flat-bladed                                                PBIC0002E


     screwdriver is used, be careful not to damage the mating
     surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1.   Using scraper, remove old liquid gasket adhering to the liquid
     gasket application surface and the mating surface.
     q Remove liquid gasket completely from the groove of the liquid
       gasket application surface, mounting bolts, and bolt holes.
2.   Wipe the liquid gasket application surface and the mating sur-
     face with white gasoline (lighting and heating use) to remove
     adhering moisture, grease and foreign materials.



                                                                                                            PBIC0003E




                                                      CO-2
                                               PRECAUTIONS

3.   Attach liquid gasket tube to tube presser [SST: WS39930000
     ( -- )].                                                                          A
     Use Genuine RTV Silicone Sealant or equivalent. Refer to
     GI-47, "RECOMMENDED CHEMICAL PRODUCTS AND
     SEALANTS" .
                                                                                       CO
4.   Apply liquid gasket without breaks to the specified location with
     the specified dimensions.
     q If there is a groove for the liquid gasket application, apply liq-
                                                                                       C
       uid gasket to the groove.

                                                                            EMA0622D

                                                                                       D
     q As for the bolt holes, normally apply liquid gasket inside the
       holes. Occasionally, it should be applied outside the holes.
       Make sure to read the text of service manual.
                                                                                       E
     q Within five minutes of liquid gasket application, install the mat-
       ing component.
     q If liquid gasket protrudes, wipe it off immediately.
                                                                                       F
     q Do not retighten mounting bolts or nuts after the installation.

     q After 30 minutes or more have passed from the installation, fill
       engine oil and engine coolant.                                                  G
CAUTION:                                                                    SEM159F
If there are specific instructions in this manual, observe them.
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                                                      CO-3
                                                       PREPARATION

PREPARATION                                                                                                                   PFP:00002

Special Service Tools                                                                                                                ABS00A1P

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
  Tool number
  (Kent-Moore No.)                                                                       Description
  Tool name

  EG17650301                                                                             Adapting radiator cap tester to radiator cap
  (J33984-A)                                                                             and radiator filler neck
  Radiator cap tester adapter                                                            a: 28 (1.10) dia.
                                                                                         b: 31.4 (1.236) dia.
                                                                                         c: 41.3 (1.626) dia.
                                                                                         Unit: mm (in)

                                                                         S-NT564


  KV99103510                                                                             Installing radiator upper and lower tanks
  (     



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