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Nissan Pathfinder (2008 year). Manual - part 372

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-139

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ40DE]

Piston Pin

Unit: mm (in)

CONNECTING ROD

Unit: mm (in)

*: After installing in connecting rod

CRANKSHAFT

Side clearance

Top

0.045 - 0.080 (0.0018 - 0.0031)

0.11 (0.0043)

2nd

0.030 - 0.070 (0.0012 - 0.0028)

0.10 (0.0039)

Oil ring

0.065 - 0.135 (0.0026 - 0.0053)

—

End gap

Top

0.23 - 0.33 (0.0091 - 0.0130)

0.56 (0.0220)

2nd

0.33 - 0.48 (0.0130 - 0.0189)

0.68 (0.0268)

Oil (rail ring)

0.20 - 0.50 (0.0079 - 0.0197)

0.85 (0.0335)

Items

Standard

Limit

Piston pin outer diameter

Grade No. 0

21.989 - 21.995 (0.8657 - 0.8659)

—

Grade No. 1

21.995 - 22.001 (0.8659 - 0.8662)

—

Piston to piston pin oil clearance

0.002 - 0.006 (0.0001 - 0.0002)

—

Connecting rod bushing oil clearance

0.005 - 0.017 (0.0002 - 0.0007)

0.030 (0.0012)

Items

Standard

Limit

Center distance

165.82 - 165.92 (6.5283 - 6.5323)

—

Bend [per 100 (3.94)]

—

0.15 (0.0059)

Torsion [per 100 (3.94)]

—

0.30 (0.0118)

Connecting rod bushing inner diameter*

Grade No. 0

22.000 - 22.006 (0.8661 - 0.8664)

—

Grade No. 1

22.006 - 22.012 (0.8664 - 0.8666)

—

Connecting rod big end diameter (Without bearing)

57.000 - 57.013 (2.2441 - 2.2446)

—

Side clearance

0.20 - 0.35 (0.0079 - 0.0138)

: 40 mm (0.0157)

EM-140

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ40DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Unit: mm (in)

*: Total indicator reading

MAIN BEARING

Main journal diameter. “Dm” grade

Standard

Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 7

69.975 - 69.974 (2.7549 - 2.7549)
69.974 - 69.973 (2.7549 - 2.7548)
69.973 - 69.972 (2.7548 - 2.7548)
69.972 - 69.971 (2.7548 - 2.7548)
69.971 - 69.970 (2.7548 - 2.7547)
69.970 - 69.969 (2.7547 - 2.7547)
69.969 - 69.968 (2.7547 - 2.7546)
69.968 - 69.967 (2.7546 - 2.7546)
69.967 - 69.966 (2.7546 - 2.7546)
69.966 - 69.965 (2.7546 - 2.7545)
69.965 - 69.964 (2.7545 - 2.7545)
69.964 - 69.963 (2.7545 - 2.7544)
69.963 - 69.962 (2.7544 - 2.7544)
69.962 - 69.961 (2.7544 - 2.7544)
69.961 - 69.960 (2.7544 - 2.7543)
69.960 - 69.959 (2.7543 - 2.7543)
69.959 - 69.958 (2.7543 - 2.7542)
69.958 - 69.957 (2.7542 - 2.7542)
69.957 - 69.956 (2.7542 - 2.7542)
69.956 - 69.955 (2.7542 - 2.7541)
69.955 - 69.954 (2.7541 - 2.7541)
69.954 - 69.953 (2.7541 - 2.7540)
69.953 - 69.952 (2.7540 - 2.7540)
69.952 - 69.951 (2.7540 - 2.7540)

Pin journal diameter. “Dp” grade

Standard

Grade No. 0

53.968 - 53.974 (2.1247 - 2.1250)

Grade No. 1

53.962 - 53.968 (2.1245 - 2.1247)

Grade No. 2

53.956 - 53.962 (2.1242 - 2.1245)

Center distance “r”

45.96 - 46.04 (1.8094 - 1.8126)

Taper (Difference between “A” and “B”)

Limit

0.002 (0.0001)

Out-of-round (Difference between “X” and “Y”)

0.002 (0.0001)

Crankshaft runout [TIR*]

Standard

Less than 0.05 (0.002)

Limit

0.10 (0.0039)

Crankshaft end play

Standard

0.10 - 0.25 (0.0039 - 0.0098)

Limit

0.30 (0.0118)

SEM645

SBIA0535E

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-141

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ40DE]

Undersize

Unit: mm (in)

Main Bearing Oil Clearance

Unit: mm (in)

*: Actual clearance

CONNECTING ROD BEARING

Grade number

UPR/LWR

Thickness

mm (in)

Width

mm (in)

Identification color

Remarks

—

2.500 - 2.503 (0.0984 - 0.0985)

19.9 - 20.1

(0.783 - 0.791)

Black

Grade is the same
for upper and lower
bearings.

—

2.503 - 2.506 (0.0985 - 0.0987)

Brown

—

2.506 - 2.509 (0.0987 - 0.0988)

Green

—

2.509 - 2.512 (0.0988 - 0.0989)

Yellow

—

2.512 - 2.515 (0.0989 - 0.0990)

Blue

—

2.515 - 2.518 (0.0990 - 0.0991)

Pink

—

2.518 - 2.521 (0.0991 - 0.0993)

Purple

—

2.521 - 2.524 (0.0993 - 0.0994)

White

UPR

2.503 - 2.506 (0.0985 - 0.0987)

Brown

Grade is different for
upper and lower
bearings.

LWR

2.500 - 2.503 (0.0984 - 0.0985)

Black

UPR

2.506 - 2.509 (0.0987 - 0.0988)

Green

LWR

2.503 - 2.506 (0.0985 - 0.0987)

Brown

UPR

2.509 - 2.512 (0.0988 - 0.0989)

Yellow

LWR

2.506 - 2.509 (0.0987 - 0.0988)

Green

UPR

2.512 - 2.515 (0.0989 - 0.0990)

Blue

LWR

2.509 - 2.512 (0.0988 - 0.0989)

Yellow

UPR

2.515 - 2.518 (0.0990 - 0.0991)

Pink

LWR

2.512 - 2.515 (0.0989 - 0.0990)

Blue

UPR

2.518 - 2.521 (0.0991 - 0.0993)

Purple

LWR

2.515 - 2.518 (0.0990 - 0.0991)

Pink

UPR

2.521 - 2.524 (0.0993 - 0.0994)

White

LWR

2.518 - 2.521 (0.0991 - 0.0993)

Purple

PBIC2969E

Items

Thickness

Main journal diameter

0.25 (0.0098)

2.633 - 2.641 (0.1037 - 0.1040)

Grind so that bearing clearance is the specified value.

Items

Standard

Limit

Main bearing oil clearance

0.035 - 0.045 (0.0014 - 0.0018)*

0.065 (0.0026)

EM-142

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ40DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Undersize

Unit: mm (in)

Connecting Rod Bearing Oil Clearance

Unit: mm (in)

*: Actual clearance

Grade number

Thickness

mm (in)

Identification color (mark)

1.500 - 1.503 (0.0591 - 0.0592)

Black

1.503 - 1.506 (0.0592 - 0.0593)

Brown

1.506 - 1.509 (0.0593 - 0.0594)

Green

Items

Thickness

Crank pin journal diameter

0.25 (0.0098)

1.626 - 1.634 (0.0640 - 0.0643)

Grind so that bearing clearance is the specified value.

Items

Standard

Limit

Connecting rod bearing oil clearance

0.034 - 0.059 (0.0013 - 0.0023)*

0.070 (0.0028)

PRECAUTIONS

EM-143

< PRECAUTION >

[VK56DE]

PRECAUTION

PRECAUTIONS

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

INFOID:0000000001282001

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 SR and SB section of this Service Man-
ual.

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.

Precaution for Drain Engine Coolant

INFOID:0000000001282002

Drain engine coolant when engine is cooled.

Precaution for Disconnecting Fuel Piping

INFOID:0000000001282003

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

Precaution for Removal and Disassembly

INFOID:0000000001282004

• 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.
• 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:0000000001282005

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

Precaution for Assembly and Installation

INFOID:0000000001282006

• 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.
• Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine 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.

EM-144

< PRECAUTION >

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PRECAUTIONS

• Release air within route when refilling after draining engine 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 engine coolant, fuel, engine oil, and

exhaust systems for leakage.

Parts Requiring Angular Tightening

INFOID:0000000001282007

• For final tightening of the following engine parts use Tool:

- Cylinder head bolts
- Main bearing cap bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angle

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 lightly coated with engine oil.

Precaution for Liquid Gasket

INFOID:0000000001282008

REMOVAL OF LIQUID GASKET SEALING

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

remove old liquid gasket sealing using Tool.

CAUTION:

Be careful not to damage the mating surfaces.

• Tap seal cutter to insert it (1), and then slide it by tapping on the

side (2) as shown.

• In areas where Tool is difficult to use, use plastic hammer to lightly

tap the parts, to remove it.

CAUTION:

If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.

LIQUID GASKET APPLICATION PROCEDURE

Remove the old liquid gasket adhering to the gasket application
surface and the mating surface using suitable tool.
• Remove the liquid gasket completely from the groove of the

liquid gasket application surface, bolts, and bolt holes.

Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign material.

Tool number

: KV10112100 (BT-8653-A)

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC0003E

PRECAUTIONS

EM-145

< PRECAUTION >

[VK56DE]

Attach the liquid gasket tube to the Tool.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

Apply the liquid gasket without breaks 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.

• As for the bolt holes, normally apply the liquid gasket inside

the holes. If specified in the procedure, it should also be
applied outside the holes.

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

ing component.

• If the liquid gasket protrudes, wipe it off immediately.
• Do not retighten nuts or bolts after the installation.
• Wait 30 minutes or more after installation before refilling the

engine with engine oil and engine coolant.

CAUTION:

If there are specific instructions in this manual, observe them.

Tool number

: WS39930000 (

—

)

WBIA0567E

SEM159F

EM-146

< PREPARATION >

[VK56DE]

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000001282009

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

16441 6N210
(J-45488)
Quick connector release

Removing fuel tube quick connectors in en-
gine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210)

—

(J-46535)
Drive belt tension releaser

Releasing drive belt tension

KV10111100
(J-37228)
Seal cutter

Removing steel oil pan and rear timing chain
case

WS39930000
(

—

)

Tube presser

Pressing the tube of liquid gasket

—

(J-44626)
Air fuel sensor Socket

Loosening or tightening air fuel ratio A/F sen-
sor
a: 22 mm (0.87 in)

EG15050500
(J-45402)
Compression gauge adapter

Inspecting compression pressure

PBIC0198E

WBIA0536E

S-NT046

S-NT052

LBIA0444E

ZZA1225D

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