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Nissan Pathfinder. Manual - part 541

PRECAUTIONS

EM-3

< PRECAUTION >

PRECAUTION

PRECAUTIONS

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

INFOID:0000000009177872

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. Information necessary to service the system safely is included in the SR and SB section of

this Service Manual.

WARNING:

• 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 performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• 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 har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery and wait at least three minutes before performing any service.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000009177873

When performing the procedure after removing cowl top cover, cover

the lower end of windshield with urethane, etc to prevent damage to

windshield.

Precaution for Drain Coolant and Engine Oil

INFOID:0000000009177874

• Drain engine coolant and engine oil after the engine has cooled completely.

Precaution for Disconnecting Fuel Piping

INFOID:0000000009177875

• Before starting work, make sure no fire or spark producing items are in the work area.

• Release fuel pressure before disassembly.

• After disconnecting pipes, plug openings to stop fuel leakage.

Precaution for Removal and Disassembly

INFOID:0000000009177876

• When instructed to use special service tools, use the specified tools. Always be careful to work safely, avoid

forceful or uninstructed operations.

• Exercise maximum care to avoid damage to mating or sliding surfaces.

• Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

PIIB3706J

EM-4

< PRECAUTION >

PRECAUTIONS

• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.

• When loosening nuts and bolts, 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.

Precaution for Inspection, Repair and Replacement

INFOID:0000000009177877

• Thoroughly inspect parts before repairing or replacing them, even if they are new. Replace as necessary.

Precaution for Assembly and Installation

INFOID:0000000009177878

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

• When tightening nuts and bolts, 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 specified,

do exactly as specified.

• Replace with new gasket, packing, oil seal or O-ring.

• Dowel pins are used in several critical parts for correct alignment. When replacing and reassembling parts

with dowel pins, check that dowel pins are installed in their original positions.

• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction

and blockage.

• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.

Before assembly, oil sliding surfaces well.

• Release air within route when refilling after draining coolant.

• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).

Then make sure that there are no leaks at fuel line connections.

• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for

leaks.

Parts Requiring Angular Tightening

INFOID:0000000009177879

• Use an angle wrench for the final tightening of the following engine parts:

- Cylinder head bolts

- Main bearing cap bolts

- Connecting rod cap nuts

- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular

tightening)

• Do not use a torque value for final tightening.

• The torque value for these parts are for a preliminary step.

• Ensure thread and seat surfaces are clean and coated with engine oil.

Precaution for Liquid Gasket

INFOID:0000000009177880

REMOVAL OF LIQUID GASKET

• After removing the bolts and nuts, separate the mating surface and

remove the old liquid gasket using Tool.

CAUTION:

Do not damage the mating surfaces.

• In areas where the Tool is dificult to use, use a plastic hammer to

lightly tap (1) the Tool where the liquid gasket is applied. Use a

plastic hammer to slide (2) the Tool by tapping on the side.

LIQUID GASKET APPLICATION PROCEDURE

Tool number

: KV10111100 (J-37228)

WBIA0566E

PRECAUTIONS

EM-5

< PRECAUTION >

1. Using suitable tool (A), remove old liquid gasket adhering to the

liquid gasket application surface and the mating surface.

• 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.

3. Attach the liquid gasket tube to the suitable tool.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

4. Apply the liquid gasket without gaps to the specified location

with the specified dimensions.

• If there is a groove for the liquid gasket application, apply the

liquid gasket to the groove.

• Normally apply the liquid gasket on the inside edge of the bolt

holes. Also apply to the outside edge of the bolt holes when

specified in the procedure.

• Within five minutes of liquid gasket application, install the mat-

ing component.

• If the liquid gasket protrudes, wipe it off immediately.

• Do not retighten mounting bolts after the installation.

• Wait 30 minutes or more after installation before refilling the

engine with engine oil or engine coolant.

CAUTION:

If there are more specific instructions in the procedures contained in this manual concerning liquid

gasket application, observe them.

JPBIA0053ZZ

WBIA0567E

SEM159F

EM-6

< PREPARATION >

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000009177881

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV10116200
(J-26336-A)
Valve spring compressor
1. KV10115900
(J-26336-20)
Attachment
2. KV10109220
( — )
Adapter

Disassembling valve mechanism
Part (1) is a component of KV10116200 (J-
26336-A), but part (2) is not.

KV10107902
(J-38959)
Valve oil seal puller

Removing valve oil seal

KV10115600
(J-38958)
Valve oil seal drift

Installing valve oil seal
Use side A.
a: 20 (0.79) dia.          d: 8 (0.31) dia.
b: 13 (0.51) dia.          e: 10.7 (0.421) dia.
c: 10.3 (0.406) dia.        f: 5 (0.20) dia.
                                              Unit: mm (in)

EM03470000
(J-8037)
Piston ring compressor

Installing piston assembly into cylinder bore

ST16610001
(J-23907)
Pilot bushing puller

Removing crankshaft pilot bushing

KV10111100
(J-37228)
Seal cutter

Removing steel oil pan and rear timing chain
case

PBIC1650E

S-NT011

S-NT603

S-NT044

NT045

NT046

Content .. 539 540 541 542 ..