Infiniti Q45. Manual - part 766

 

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Infiniti Q45. Manual - part 766

 

 

RFD-1

REAR FINAL DRIVE

D  DRIVELINE/AXLE

CONTENTS

C

E

F

G

H

I

J

K

L

M

SECTION 

RFD

A

B

RFD

REAR FINAL DRIVE

PRECAUTIONS .......................................................... 2

Service Notice or Precautions  .................................. 2

PREPARATION ........................................................... 3

Special Service Tools  ............................................... 3
Commercial Service Tools ........................................ 6

NOISE, VIBRATION AND HARSHNESS (NVH) 
TROUBLESHOOTING ................................................ 7

NVH Troubleshooting Chart  ..................................... 7

DESCRIPTION ............................................................ 8

Cross-Sectional View  ............................................... 8

DIFFERENTIAL GEAR OIL  ........................................ 9

Changing Differential Gear Oil  ................................. 9

DRAINING ............................................................. 9
FILLING ................................................................. 9

Checking Differential Gear Oil .................................. 9

OIL LEAKAGE AND OIL LEVEL  ........................... 9

FRONT OIL SEAL  .................................................... 10

Removal and Installation  ........................................ 10

IDENTIFICATION STAMP OF REPLACEMENT 
FREQUENCY OF FRONT OIL SEAL  ................. 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 12

SIDE OIL SEAL  ........................................................ 14

Removal and Installation  ........................................ 14

REMOVAL ........................................................... 14
INSTALLATION ................................................... 14

REAR FINAL DRIVE ASSEMBLY  ............................ 16

Removal and Installation  ........................................ 16

COMPONENTS ................................................... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 17

Disassembly and Assembly .................................... 18

COMPONENTS ................................................... 18
ASSEMBLY INSPECTION AND ADJUSTMENT ... 19
DISASSEMBLY ................................................... 22
INSPECTION AFTER DISASSEMBLY ................ 26
ADJUSTMENT AND SELECTION OF ADJUST-
ING WASHERS  ................................................... 26
ASSEMBLY ......................................................... 31

SERVICE DATA AND SPECIFICATIONS (SDS)  ...... 37

General Specifications ............................................ 37
Inspection and Adjustment  ..................................... 37

DRIVE GEAR RUNOUT  ...................................... 37
DIFFERENTIAL SIDE GEAR CLEARANCE  ....... 37
PRELOAD TORQUE  ........................................... 37
BACKLASH ......................................................... 37
COMPANION FLANGE RUNOUT ....................... 37
SELECTIVE PARTS  ............................................ 37

RFD-2

PRECAUTIONS

PRECAUTIONS

PFP:00001

Service Notice or Precautions

NDS00060

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not 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
tightening 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.

Avoid using 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

RFD-3

C

E

F

G

H

I

J

K

L

M

A

B

RFD

PREPARATION

PFP:00002

Special Service Tools

NDS00061

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 

ST30720000
(J-25405)
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.

Installing front oil seal

Installing pinion rear bearing outer race

KV40101000
(

)

Attachment

Removing side flange

ST36230000
(J-25840-A)
Sliding hammer 

Removing side flange

KV38100200
(J-26233)
Drift
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.

Installing side oil seal

KV38107900
(J-39352)
Protector

Installing side flange

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

Fixing unit assembly

ZZA0601D

ZZA0811D

NT159

ZZA0803D

ZZA1143D

S-NT129

SDIA0267E

RFD-4

PREPARATION

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 pinion bearing preload and total 
preload

KV10111100
(J-37228)
Seal cutter

Removing rear cover

ST3306S001
(J-22888-D)
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

ST30031000
(J-22912-01)
Replacer

Removing pinion rear bearing inner race

KV40105230
(

)

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

Installing pinion rear bearing outer race

ST30613000
(J-25742-3)
Drift
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.

Installing pinion front bearing outer race

Tool number
(Kent-Moore No.)
Tool name

Description

NT124

S-NT046

NT072

ZZA0700D

PDIA0591E

ZZA1000D

 

 

 

 

 

 

 

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