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ENGINE COOLING SYSTEM


B ENGINE

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                                                                                                SECTION
                                                                         ENGINE COOLING SYSTEM                                                                       C


                                                                                                                                                                     D


                                                                                                                                                                     E
                                                                CONTENTS
PRECAUTIONS ......................................................... 2.         Removal and Installation (Crankshaft Driven Type)                                   F
 Precautions for Supplemental Restraint System                                   (A/T Models) .......................................................... 22 .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                           REMOVAL .......................................................... 22    .
 SIONER" ................................................................. 2
                                                                       .           INSPECTION AFTER REMOVAL ...................... 22                       .        G
 Precautions for Liquid Gasket ................................. 2     .           INSTALLATION .................................................. 22       .
   REMOVAL OF LIQUID GASKET SEALING ......... 2                        .         Removal and Installation (Motor Driven Type) (A/
   LIQUID GASKET APPLICATION PROCEDURE 2                               .....     T Models) ............................................................... 23
                                                                                                                                                            .
                                                                                                                                                                     H
PREPARATION .......................................................... 4
                                                                       .           REMOVAL .......................................................... 23    .
 Special Service Tools .............................................. 4.           INSTALLATION .................................................. 23       .
 Commercial Service Tools ....................................... 5    .           DISASSEMBLY AND ASSEMBLY ...................... 23                       .
OVERHEATING CAUSE ANALYSIS ......................... 6                 .         Removal and Installation (Motor Driven) (M/T Mod-                                    I
 Troubleshooting Chart ............................................. 6 .         els) ......................................................................... 24
                                                                                                                                                            .
COOLING SYSTEM ................................................... 8   .           REMOVAL .......................................................... 24    .
 Cooling Circuit ......................................................... 8
                                                                       .           INSTALLATION .................................................. 24       .        J
 System Chart .......................................................... 9
                                                                       .           DISASSEMBLY AND ASSEMBLY ...................... 25                       .
ENGINE COOLANT ................................................. 10    .        WATER PUMP ......................................................... 26     .
 Inspection .............................................................. 10
                                                                       .         Removal and Installation ....................................... 26        .
                                                                                                                                                                     K
   LEVEL CHECK .................................................. 10   .           REMOVAL .......................................................... 26    .
   LEAK CHECK .................................................... 10  .           INSPECTION AFTER REMOVAL ...................... 28                       .
 Changing Engine Coolant ..................................... 10      .           INSTALLATION .................................................. 28       .
   DRAINING ENGINE COOLANT ........................ 10                 .           INSPECTION AFTER INSTALLATION ............... 31                         .        L
   REFILLING ENGINE COOLANT ........................11                 .        WATER INLET AND THERMOSTAT ASSEMBLY ... 32
   FLUSHING COOLING SYSTEM ........................ 12                 .         Removal and Installation ....................................... 32        .
RADIATOR ............................................................... 13
                                                                       .           REMOVAL .......................................................... 32    .        M
 Removal and Installation ....................................... 13   .           INSPECTION AFTER REMOVAL ...................... 32                       .
   REMOVAL .......................................................... 14
                                                                       .           INSTALLATION .................................................. 33       .
   INSTALLATION .................................................. 16  .           INSPECTION AFTER INSTALLATION ............... 33                         .
   INSPECTION AFTER INSTALLATION .............. 16                     .        WATER OUTLET AND WATER PIPING .................. 34                         .
 Checking Radiator Cap ......................................... 16    .         Removal and Installation ....................................... 34        .
 Checking Radiator ................................................. 16.           REMOVAL .......................................................... 34    .
RADIATOR (ALUMINUM TYPE) ............................. 18              .           INSTALLATION .................................................. 34       .
 Disassembly and Assembly .................................. 18        .           INSPECTION AFTER INSTALLATION ............... 35                         .
   PREPARATION .................................................. 18   .        SERVICE DATA AND SPECIFICATIONS (SDS) ..... 36                              .
   DISASSEMBLY .................................................. 18   .         Engine Coolant Capacity (Approximate) ............... 36                   .
   ASSEMBLY ........................................................ 19.         Radiator ................................................................. 36
                                                                                                                                                            .
   INSPECTION ..................................................... 21 .         Thermostat ............................................................ 36 .
COOLING FAN ........................................................ 22.         Tightening Torque .................................................. 36    .




                                                                          CO-1
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                            ABS009VR


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                                                                                  ABS009VS

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-45, "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                                                                                                                ABS0001F

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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