Infiniti FX35 / FX45. Manual - part 888

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

RFD-7

< SERVICE INFORMATION >

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RFD

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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

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

×

: Applicable

Reference page

Re

fer to 

RFD-17, "

Di

sa

sse

mb

ly

 an

d Ass

e

m

b

ly

"

.

Re

fer to 

RFD-17, "

Di

sa

sse

mb

ly

 an

d Ass

e

m

b

ly

"

.

Re

fer to 

RFD-17, "

Di

sa

sse

mb

ly

 an

d Ass

e

m

b

ly

"

.

Re

fer to 

RFD-17, "

Di

sa

sse

mb

ly

 an

d Ass

e

m

b

ly

"

.

Re

fer to 

RFD-17, "

Di

sa

sse

mb

ly

 an

d Ass

e

m

b

ly

"

.

Re

fer to 

RFD-9, "

Chec

k

ing

 Dif

fe

ren

tia

l Ge

ar Oi

l"

.

NVH in P

R

 section.

NVH in F

AX, 

RAX, FSU and 

R

S

U sections.

NVH in WT section.

NVH in WT section.

NVH i

n

 F

AX and RAX 

secti

o

n.

NVH in B

R

 section.

NVH in P

S

 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

ani

on

 fl

an

ge

 ex

ce

ss

iv

e 

run

ou

t

Ge

ar oi

l im

pro

p

e

r

PROPELLER S

H

AFT

AXLE AND S

U

S

PENSION

TI

RE

ROAD WHEE

L

DRIVE SHAFT

BRAKE

STE

E

RING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

RFD-8

< SERVICE INFORMATION >

DESCRIPTION

DESCRIPTION

Cross-Sectional View

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1.

Side flange

2.

Pinion mate gear

3.

Drive gear

4.

Pinion mate shaft

5.

Differential case

6.

Side bearing

7.

Drive pinion

8.

Pinion front bearing

9.

Companion flange

10. Collapsible spacer

11.

Pinion rear bearing

12. Side gear

PDIA0476E

DIFFERENTIAL GEAR OIL

RFD-9

< SERVICE INFORMATION >

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DIFFERENTIAL GEAR OIL

Changing Differential Gear Oil

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DRAINING

1.

Stop engine.

2.

Remove drain plug (1) and drain gear oil.

3.

Set a gasket on drain plug (1) and install it to final drive assem-
bly and tighten to the specified torque. Refer to 

RFD-17, "Disas-

sembly and Assembly"

. 

CAUTION:

Never reuse gasket.

FILLING

1.

Remove filler plug (1). Fill with new gear oil until oil level reaches
the specified level near filler plug mounting hole.

2.

After refilling oil, check oil level. Set a gasket to filler plug (1),
then install it to final drive assembly. Refer to 

RFD-17, "Disas-

sembly and Assembly"

.

CAUTION:

Never reuse gasket.

Checking Differential Gear Oil

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OIL LEAKAGE AND OIL LEVEL

• Make sure that oil is not leaking from final drive assembly or around it.
• Remove filler plug (1) and check oil level from filler plug mounting

hole as shown in the figure.

CAUTION:

Never start engine while checking oil level.

• Set a gasket on filler plug (1) and install it on final drive assembly.

Refer to 

RFD-17, "Disassembly and Assembly"

. 

CAUTION:

Never reuse gasket.

PDIA0748J

Oil grade and Viscosity:

Refer to 

MA-9, "Fluids and Lubricants"

.

Oil capacity:

Approx. 1.4  (3 US pt, 2-1/2 Imp pt)

PDIA0749J

PDIA0749J

RFD-10

< SERVICE INFORMATION >

FRONT OIL SEAL

FRONT OIL SEAL

Removal and Installation

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CAUTION:

Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine
replacement for collapsible spacer when replacing front oil seal. Refer to "IDENTIFICATION STAMP OF
REPLACEMENT FREQUENCY OF FRONT OIL SEAL". If necessary collapsible spacer replacement,
remove final drive assembly and disassemble it to replace front oil seal and collapsible spacer. Refer
to 

RFD-16, "Removal and Installation"

 and 

RFD-17, "Disassembly and Assembly"

.

NOTE:
The reuse of collapsible spacer is prohibited in principle. However, it is reusable on a one-time basis
only in cases when replacing front oil seal.

IDENTIFICATION STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL

• The diagonally shaded area in the figure shows stamping point for

replacement frequency of front oil seal.

• The following table shows if collapsible spacer replacement is

needed before replacing front oil seal.
When collapsible spacer replacement is required, disassemble
final drive assembly to replace collapsible spacer and front oil seal.
Refer to 

RFD-17, "Disassembly and Assembly"

.

CAUTION:

Be sure to make a stamping after replacing front oil seal.

• After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in

order to identify replacement frequency.

CAUTION:

Stamping shall be made from left to right.

REMOVAL

1.

Drain gear oil. Refer to 

RFD-9, "Changing Differential Gear Oil"

.

2.

Make a judgment if a collapsible spacer replacement is required. Refer to "IDENTIFICATION STAMP OF
REPLACEMENT FREQUENCY OF FRONT OIL SEAL".

3.

Remove center muffler with a power tool. Refer to 

EX-3

.

4.

Remove rear wheel sensor. Refer to 

BRC-52

.

5.

Remove drive shaft from final drive. Then suspend it by wire etc. Refer to 

RAX-10

.

6.

Install attachment to side flange, and then pull out the side flange with the sliding hammer.

Stamp

collapsible spacer replacement

No stamp

Not required

“0” or “0” on the far right of stamp

Required

“01” or “1” on the far right of stamp

Not required

PDIA0976E

Stamp before stamping

Stamping on the far right

Stamping

No stamp

0

0

“0”
(Front oil seal was replaced once.)

1

01

“01”
(Collapsible spacer and front oil seal were replaced last time.)

0

010

“0” is on the far right.
(Only front oil seal was replaced last time.)

1

...01

“1” is on the far right.
(Collapsible spacer and front oil seal were replaced last time.)

0

...010