Infiniti FX35, FX50 (S51). Manual - part 606

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

DLN-259

< SYMPTOM DIAGNOSIS >

[REAR FINAL DRIVE: R230]

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SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000005249264

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

×

: Applicable

Reference page

DLN

-28

6,

 "

Ins

p

e

c

tion

 Af

ter Di

sa

ss

em

bl

y

"

DLN

-28

2,

 "

Adjustment

"

DLN

-28

6,

 "

Ins

p

e

c

tion

 Af

ter Di

sa

ss

em

bl

y

"

DLN

-28

2,

 "

Adjustment

"

DLN

-28

2,

 "

Adjustment

"

DLN

-26

5,

 "

Inspe

c

ti

on

"

NVH in DLN section.

NVH in F

AX, 

RAX, and RSU sections.

NVH in WT section.

NVH in WT section.

NVH in RAX

 section.

NVH in B

R

 section.

NVH in S

T

 section.

Possible cause and SUSPECTED PARTS

Gea

r to

ot

h ro

ug

h

Ge

ar co

nt

a

ct

 im

pro

p

e

r

T

o

o

th su

rfac

es

 wo

rn

Ba

ck

la

sh

 in

co

rrec

t

Com

p

an

ion

 fl

an

ge

 ex

ce

ss

iv

e 

run

ou

t

Ge

ar oi

l im

pro

p

e

r

PROPELLER SHAFT

AXLE AND S

U

SPENSION

TI

RE

S

ROAD WHEE

L

DRIVE SHAFT

BRAKE

S

STE

E

RING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

DLN-260

< PRECAUTION >

[REAR FINAL DRIVE: R230]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Service Notice or Precautions for Rear Final Drive

INFOID:0000000005249265

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

certain they never interfere with the function of the parts when applied.

• Overhaul should be done in a clean work area, it is preferable to work in dustproof area.
• Before disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of

the unit, preventing them from entering into the unit during disassembly or assembly.

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

with a new ones if necessary.

• Gaskets, seals and O-rings should be replaced any time when the unit is disassembled.
• In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tight-

ening sequence is specified, observe it.

• Clean and flush the parts sufficiently and blow-dry them.
• Be careful not to damage sliding surfaces and mating surfaces.
• When applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,

and foreign materials from the application and mounting surfaces.

• Always use shop paper for cleaning the inside of components.
• Never use cotton gloves or shop rags to prevent entering of lint.
• During assembly, observe the specified tightening torque, and apply new gear oil, petroleum jelly, or multi-

purpose grease as specified for each vehicle, if necessary.

PREPARATION

DLN-261

< PREPARATION >

[REAR FINAL DRIVE: R230]

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PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000005249266

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

KV381054S0
(J-34286)
Puller

Removing front oil seal 

KV40100621
(J-25273)
Drift
a: 76 mm (2.99 in) dia.
b: 69 mm (2.72 in) dia.

• Installing front oil seal
• Installing side bearing inner race
• Installing drive pinion rear bearing outer 

race

ST3127S000
(J-25765-A)
Preload gauge
1: GG91030000

(J-25765)
Torque wrench

2: HT62940000

(

—

)

Socket adapter (1/2

″

)

3: HT62900000

(

—

)

Socket adapter (3/8

″

)

Measuring drive pinion bearing preload torque 
and total preload torque

KV38107900
(J-39352)
Protector

Installing side flange

KV40104100
(

—

)

Attachment

Removing side flange

ZZA0601D

ZZA0811D

NT124

S-NT129

ZZA0804D

DLN-262

< PREPARATION >

[REAR FINAL DRIVE: R230]

PREPARATION

ST36230000
(J-25840-A)
Sliding hammer 

Removing side flange

ST35271000
(

—

)

Drift
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.

Installing side oil seal

KV10111100
(J-37228)
Seal cutter

Removing carrier cover

KV38100800
(J-25604-01)
Attachment
a: 541 mm (21.30 in)
b: 200 mm (7.87 in)

Securing unit assembly

ST3306S001
(

—

)

Differential side bearing puller set
1: ST33051001

(J-22888-20)
Puller

2: ST33061000

(J-8107-2)
Base

a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.

Removing and installing side bearing inner 
race

KV10112100
(BT-8653-A)
Angle wrench

Tightening the drive gear mounting bolt

Tool number
(Kent-Moore No.)
Tool name

Description

ZZA0803D

ZZA1143D

S-NT046

SDIA0267E

NT072

ZZA0120D