Nissan Pathfinder (2007 year). Manual — part 231

PRECAUTIONS

EM-5

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2007 Pathfinder

●

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gasses for leakage.

Parts Requiring Angle Tightening

EBS00QBD

●

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

–

Cylinder head bolts

–

Lower cylinder block bolts

–

Connecting rod cap bolts

–

Crankshaft pulley bolt (No angle wrench is required as bolt flange is provided with notches for angle tight-
ening)

●

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.

Precautions for Liquid Gasket

EBS00QBE

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, and then slide it by tapping on the
side 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

1.

Using scraper, remove old liquid gasket adhering to the gasket
application surface and the mating surface.

●

Remove liquid gasket completely from the groove of the gas-
ket application surface, bolts, and bolt holes.

2.

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

3.

Attach liquid gasket tube to Tool.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

.

4.

Apply liquid gasket without breaks to the specified location with
the specified dimensions.

●

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

Tool number

: KV10112100 (BT-8653-A)

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC0003E

Tool number

: WS39930000 (

—

)

WBIA0567E

EM-6

PRECAUTIONS

2007 Pathfinder

●

As for bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of this manual.

●

Within five minutes of liquid gasket application, install the mat-
ing component.

●

If liquid gasket protrudes, wipe it off immediately.

●

Do not retighten nuts or bolts after the installation.

●

After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.

CAUTION:

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

SEM159F

PREPARATION

EM-7

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2007 Pathfinder

PREPARATION

PFP:00002

Special Service Tools

EBS00QBF

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

ST0501S000
(

—

)

Engine stand assembly
1. ST05011000
(

—

)

Engine stand
2. ST05012000
(

—

)

Base

Disassembling and assembling engine

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 so.

KV10107902
(J-38959)
Valve oil seal puller

Replacing valve oil seal

—

(J-39386)
Valve oil seal drift

Installing valve oil seal

EM03470000
(J-8037)
Piston ring compressor

Installing piston assembly into cylinder bore

ST16610001
(J-23907)
Pilot bushing puller

Removing pilot converter (A/T models)

NT042

PBIC1650E

NT011

NT024

NT044

NT045

EM-8

PREPARATION

2007 Pathfinder

KV991J0120
(J-47128)
Seal installer

Installing rear main seal

KV10111100
(J-37228)
Seal cutter

Removing oil pan (lower and upper), front and
rear timing chain case, etc.

WS39930000
(

—

)

Tube presser

Pressing the tube of liquid gasket

KV10112100
(BT-8653-A)
Angle wrench

Tightening bolts for bearing cap, cylinder
head, etc. in angle

KV991J0050
(J-44626)
Air fuel sensor Socket

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

KV10114400
(J-38365)
Heated oxygen sensor wrench

Loosening or tightening heated oxygen sen-
sor 1
a: 22 mm (0.87 in)

Tool number
(Kent-Moore No.)
Tool name

Description

LBIA0452E

NT046

NT052

NT014

LBIA0444E

NT636

PREPARATION

EM-9

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2007 Pathfinder

Commercial Service Tools

EBS00QBG

KV10117700
(J-44716)
Ring gear stopper

Removing and installing crankshaft pulley

—

(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)

Tool number
(Kent-Moore No.)
Tool name

Description

NT822

PBIC0198E

Tool number
(Kent-Moore No.)
Tool name

Description

(

—

)

Power tool

Loosening nuts and bolts

KV991J0100
(J-46531)
TORX socket

Removing and installing flywheel
Size: T55

(

—

)

Manual lift table caddy

Removing and installing engine

(J-24239-01)
Cylinder head bolt wrench

Loosening and tightening cylinder head bolt,
and used with angle wrench [SST:
KV10112100 (BT8653-A)]
a: 13 (0.51) dia.
b: 12 (0.47)
c: 10 (0.39)
Unit: mm (in)

PBIC0190E

PBIC1113E

ZZA1210D

NT583

EM-10

PREPARATION

2007 Pathfinder

(

—

)

Spark plug wrench

Removing and installing spark plug

(

—

)

Valve seat cutter set

Finishing valve seat dimensions

(

—

)

Piston ring expander

Removing and installing piston ring

(

—

)

Valve guide drift

Removing and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.

(

—

)

Valve guide reamer

(1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d

1

: 6.0 mm (0.236 in) dia.

d

2

: 10.175 - 10.196 mm (0.4006 - 0.4014 in)

dia.

(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner

Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: J-43897-18 [18 mm (0.71 in) dia.] for zir-
conia heated oxygen sensor
b: J-43897-12 [12 mm (0.47 in) dia.] for tita-
nia heated oxygen sensor

(

—

)

Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)

Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads

Tool number
(Kent-Moore No.)
Tool name

Description

NT047

NT048

NT030

NT015

NT016

AEM488

AEM489

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

EM-11

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2007 Pathfinder

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting —Engine Noise

EBS00QBH

PBIC2873E

EM-12

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

2007 Pathfinder

Use the Chart Below to Help You Find the Cause of the Symptom

EBS00QBI

1.

Locate the area where noise occurs.

2.

Confirm the type of noise.

3.

Specify the operating condition of engine.

4.

Check specified noise source.

If necessary, repair or replace these parts.

A: Closely related

B: Related

C: Sometimes related

—: Not related

Location

of noise

Type of

noise

Operating condition of engine

Source of

noise

Check item

Refer-

ence page

Before

warm-

up

After

warm-

up

When

start-

ing

When

idling

When

racing

While

driving

Top of
engine
Rocker
cover
Cylinder
head

Ticking or
clicking

C

A

—

A

B

—

Tappet
noise

Valve clearance

EM-84

Rattle

C

A

—

A

B

C

Camshaft
bearing
noise

Camshaft runout
Camshaft journal oil
clearance

EM-77
EM-77

Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan

Slap or
knock

—

A

—

B

B

—

Piston pin
noise

Piston to piston pin oil
clearance
Connecting rod bush-
ing oil clearance

EM-123

EM-125

Slap or
rap

A

—

—

B

B

A

Piston
slap noise

Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion

EM-127
EM-124
EM-124
EM-125

Knock

A

B

C

B

B

B

Connect-
ing rod
bearing
noise

Connecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearance

EM-125
EM-129

Knock

A

B

—

A

B

C

Main
bearing
noise

Main bearing oil clear-
ance
Crankshaft runout

EM-130
EM-129

Front of
engine
Timing
chain
case

Tapping or
ticking

A

A

—

B

B

B

Timing
chain and
chain ten-
sioner
noise

Timing chain cracks
and wear
Timing chain tensioner
operation

EM-63
EM-55

Front of
engine

Squeak-
ing or fizz-
ing

A

B

—

B

—

C

Drive belts
(Sticking
or slip-
ping)

Drive belts deflection

EM-14

Creaking

A

B

A

B

A

B

Drive belts
(Slipping)

Idler pulley bearing
operation

Squall
Creak

A

B

—

B

A

B

Water
pump
noise

Water pump operation

CO-19