Nissan Pathfinder (2012 year). Instruction — part 227

PRECAUTIONS

DLN-381

< PRECAUTION >

[FRONT FINAL DRIVE: M205]

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5. When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT.

Precaution for Servicing Front Final Drive

INFOID:0000000007357623

• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic

operations.

• Check for the correct installation status prior to removal or disassembly. When matching marks are required,

be certain they do not interfere with the function of the parts they are applied to.

• Overhaul should be done in a clean work area, a dust proof area is recommended.

• Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from

entering into the unit during disassembly or assembly.

• Always use shop paper for cleaning the inside of components.

• Avoid using cotton gloves or a shop cloth to prevent the entering of lint.

• Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them

with new ones if necessary.

• Gaskets, seals and O-rings should be replaced any time the unit is disassembled.

• Clean and flush the parts sufficiently and blow them dry.

• Be careful not to damage sliding surfaces and mating surfaces.

• When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and

foreign materials from the application and mating surfaces.

• In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a

tightening sequence is specified, observe it.

• During assembly, observe the specified tightening torque.

• Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.

August 2012

2012 Pathfinder

DLN-382

< PREPARATION >

[FRONT FINAL DRIVE: M205]

PREPARATION

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000007357624

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

ST35271000
( — )
Drift

Installing drive pinion front bearing outer
race.

a: 72 mm (2.83 in) dia.
b: 36 mm (1.42 in) dia.

KV10111100
(J-37228)
Seal cutter

Removing carrier cover

KV38100500
(J-25273)
Drift

Installing front oil seal.

a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.

ST30021000
( — )
Puller

• Removing side bearing inner race.
• Removing drive pinion rear bearing inner

race.

KV38100300
(J-25523)
Drift

Installing side bearing inner race.

a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.

ST30901000
( — )
Drift

Installing drive pinion rear bearing outer race.

A: 79 mm (3.11 in) dia.
B: 45 mm (1.77 in) dia.
C: 35.2 mm (1.39 in) dia.

ZZA0702D

NT046

ZZA0811D

ZZA0700D

ZZA1046D

SDIA0217J

August 2012

2012 Pathfinder

PREPARATION

DLN-383

< PREPARATION >

[FRONT FINAL DRIVE: M205]

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KV40104810
( — )
Drift

Installing drive pinion front bearing outer
race.

a: 68 mm (2.68 in) dia.
b: 55 mm (2.17 in) dia.

KV38102200
( — )
Drift

Installing front oil seal.

a: 55.3 mm (2.18 in) dia

.

b:

90 mm (3.54 in) dia.

ST33081000
( — )
Adapter

Removing and installing side bearing inner
race.

a: 43 mm (1.69 in) dia

.

b: 33.5 mm (1.32 in) dia.

ST3127S000
(J-25765-A)
Preload gauge
1. GG91030000
(J-25765)
Torque wrench
2. HT62940000
( — )
Socket adapter (1/2

″

)

3. HT62900000
( — )
Socket adapter (3/8

″

)

Inspecting drive pinion bearing preload and
total preload

—

(C-4040)
Installer

Installing drive pinion rear bearing inner race.

KV40105230
( — )
Drift

Installing drive pinion rear bearing outer race.

a: 92 mm (3.62 in) dia.
b: 86 mm (3.39 in) dia.
c: 45 mm (1.77 in) dia.

Tool number
(Kent-Moore No.)
Tool name

Description

ZZA1003D

NT660

ZZA1000D

NT124

SDIA2607E

PDIA0591E

August 2012

2012 Pathfinder

DLN-384

< PREPARATION >

[FRONT FINAL DRIVE: M205]

PREPARATION

Commercial Service Tool

INFOID:0000000007357625

—

(C-4171)
Handle

• Removing drive pinion front bearing outer

race

• Removing drive pinion rear bearing outer

race

—

(D-103)
Remover

Removing drive pinion front bearing outer
race

—

(C-4307)
Remover

Removing drive pinion rear bearing outer
race

(SP8P)
Slide hammer

• Removing front oil seal
• Removing side oil seal

Tool number
(Kent-Moore No.)
Tool name

Description

LDIA0134E

LDIA0135E

LDIA0135E

LDIA0133E

(Kent-Moore No.)
Tool name

Description

Power tool

Loosening nuts, screws and bolts

PIIB1407E

August 2012

2012 Pathfinder

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

DLN-385

< SYSTEM DESCRIPTION >

[FRONT FINAL DRIVE: M205]

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SYSTEM DESCRIPTION

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000007357626

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference page

DLN-394

DLN-394

DLN-394

DLN-394

DLN-394

DLN-386

DL

N-3

17

, "NV

H

T

rou

ble

shoo

ting Cha

rt"

DL

N-3

27

, "NV

H

T

rou

ble

shoo

ting Cha

rt"

DL

N-3

38

, "NV

H

T

rou

ble

shoo

ting Cha

rt"

F

AX-5,

"NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

FSU-6,

"NVH T

ro

ub

les

h

oot

in

g Ch

art"

WT

-4

8,

"NVH T

ro

ub

les

ho

ot

ing

Ch

art"

WT

-4

8,

"NVH T

ro

ub

les

ho

ot

ing

Ch

art"

F

AX-5,

"NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

BR-6,

"NVH T

ro

ub

les

ho

ot

ing

Ch

art"

ST

-1

1,

"NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

Possible cause and SUSPECTED PARTS

G

e

ar t

oo

th

rou

gh

Gea

r co

nt

ac

t i

mp

rop

er

To

ot

h s

u

rf

ac

es

w

o

rn

In

co

rre

ct ba

ck

la

sh

Co

mp

an

io

n f

lan

ge

e

xc

es

si

ve

run

ou

t

Gea

r oi

l i

mp

rop

er

PR

OP

EL

LE

R

S

H

A

F

T

FRO

N

T A

X

L

E

F

R

ONT

SUSPENSI

ON

TI

RE

S

ROAD W

H

EEL

DRIV

E SHAFT

BR

AK

E

S

S

T

EERING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

×

August 2012

2012 Pathfinder

D L N - 3 8 6

< PERIODIC MAINTENANCE >

[FRONT FINAL DRIVE: M205]

DIFFERENTIAL GEAR OIL

PERIODIC MAINTENANCE

DIFFERENTIAL GEAR OIL

Changing Differential Gear Oil

INFOID:0000000007357627

DRAINING

1. Stop the engine.
2. Remove the drain plug from the front final drive assembly to drain the differential gear oil.
3. Install the drain plug with sealant applied on the threads to the front final drive assembly. Tighten to the

specified torque. Refer to

DLN-394, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to

GI-14, "Recommended Chemical Prod-

ucts and Sealants"

.

FILLING

1. Remove the filler plug from the front final drive assembly.
2. Fill the front final drive assembly with new differential gear oil

until the level reaches the specified level near the filler plug hole.

3. Install the filler plug with sealant applied on the threads to the

front final drive assembly. Tighten to the specified torque. Refer

to

DLN-394, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to

GI-14, "Recommended Chemical Products and Sealants"

.

Checking Differential Gear Oil

INFOID:0000000007357628

DIFFERENTIAL GEAR OIL LEAKAGE AND LEVEL

1. Make sure that differential gear oil is not leaking from the front final drive assembly or around it.
2. Check the differential gear oil level from the filler plug hole as

shown.

CAUTION:

Do not start engine while checking differential gear oil level.

3. Install the filler plug with sealant applied on the threads to the

front final drive assembly. Tighten to the specified torque. Refer

to

DLN-394, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to

GI-14, "Recommended Chemical Products and Sealants"

.

Differential gear oil
grade and capacity

: Refer to

MA-18, "FOR USA

AND CANADA : Fluids and
Lubricants"

.

LDIA0176E

LDIA0176E

August 2012

2012 Pathfinder

SIDE OIL SEAL

DLN-387

< REMOVAL AND INSTALLATION >

[FRONT FINAL DRIVE: M205]

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REMOVAL AND INSTALLATION

SIDE OIL SEAL

Removal and Installation

INFOID:0000000007357629

REMOVAL

1. Remove the front final drive assembly. Refer to

DLN-391, "Removal and Installation"

.

2. Remove the differential side shaft and differential side flange

using suitable tool.

3. Place a small hole in the side oil seal case using suitable tool.

4. Remove the side oil seal using Tool as shown.

INSTALLATION

1. Apply multi-purpose grease to the lips of the new side oil seal. Then drive the new side oil seal in evenly to

the gear carrier using suitable tool.

CAUTION:

• Do not reuse side oil seal.

• Do not incline the new side oil seal when installing.

• Apply multi-purpose grease to the lips of the new side oil seal.

2. Installation of the remaining components is in the reverse order of removal.

CAUTION:

Check the differential gear oil level after installation. Refer to

DLN-386

.

BDIA0006E

LDIA0129E

Tool number

: SP8P

LDIA0130E

August 2012

2012 Pathfinder

DLN-388

< REMOVAL AND INSTALLATION >

[FRONT FINAL DRIVE: M205]

FRONT OIL SEAL

FRONT OIL SEAL

Removal and Installation

INFOID:0000000007357630

REMOVAL

1. Separate the RH and LH drive shafts from the front final drive assembly. Properly support the drive shafts.

Refer to

FAX-7, "VQ40DE : Removal and Installation"

for companion flange bolt torque specification.

2. Remove the front propeller shaft. Refer to

DLN-319, "Removal and Installation"

.

3. Measure the total preload torque. Refer to

DLN-394, "Disassembly and Assembly"

.

NOTE:

Record the total preload torque measurement.

4. Remove the drive pinion lock nut using suitable tool.
5. Put matching marks on the companion flange and drive pinion

using paint.

CAUTION:

Use paint to make the matching marks. Do not damage the

companion flange or drive pinion.

6. Remove companion flange using suitable tool.

7. Place a small hole in the front oil seal case using suitable tool.

8. Remove the front oil seal using Tool as shown.

BDIA0001E

LDIA0171E

LDIA0129E

Tool number

: SP8P

LDIA0130E

August 2012

2012 Pathfinder