differential INFINITI FX35 2007 Workshop Manual

RAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000CG
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
—
RAX-9—
RAX-5—
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
Refer to REAR AXLE in this chart. NVH in WT section
NVH in WT section
Refer to DRIVE SHAFT in this chart. NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
REAR AXLE
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom DRIVE
SHAFT Noise
×× ×××××× ××
Shake ×× ×××××××
REAR
AXLE Noise
×× ××× ×××××
Shake ×××××××××
Vibration ×××××××
Shimmy ×× ×××××
Judder × × ×× ××
Poor quality ride or handling ×× × ××

RFD-1
REAR FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
C E F
G H
I
J
K L
M
SECTION
A
B
RFD
Revision: 2006 July 2007 FX35/FX45
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-4
PREPARATION
Revision: 2006 July 2007 FX35/FX45
KV38100800
(J-25604-01)
Attachment
a: 541 mm (21.30 in)
b: 200 mm (7.87 in) Fixing unit assembly
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
K V 1 0 1111 0 0
(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
Tool number
(Kent-Moore No.)
Tool name Description
SDIA0267E
NT124
S-NT046
NT072
ZZA0700D
PDIA0591E

PREPARATION RFD-5
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 July 2007 FX35/FX45
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
ST30611000
(J-25742-1)
Drift bar Installing pinion front bearing outer race (Use
with ST30613000)
ST30901000
(J-26010-01)
Drift
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35.2 mm (1.386 in) dia. Installing pinion rear bearing inner race
KV38100300
(J-25523)
Drift
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia. Installing side bearing inner race
(J-8129)
Spring gauge Measuring turning torque
(J-34309)
Differential shim selector tool Adjusting bearing preload and pinion gear
height
(J-25269-4)
Side bearing disc (2 Req'd) Selecting pinion height adjusting washer
Tool number
(Kent-Moore No.)
Tool name Description
ZZA1000D
S-NT090
ZZA0978D
ZZA1046D
NT127
NT134
NT136

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING RFD-7
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000BK
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
Refer to
RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-20, "
Tooth Contact
" .
Refer to RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-21, "
Backlash
" .
Refer to RFD-22, "
Companion Flange Runout
" .
Refer to RFD-9, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise ×××××××××××××

RFD-8
DESCRIPTION
Revision: 2006 July 2007 FX35/FX45
DESCRIPTIONPFP:00000
Cross-Sectional ViewNDS000BL
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
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 July 2007 FX35/FX45
DIFFERENTIAL GEAR OILPFP:KLD30
Changing Differential Gear OilNDS000CT
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-18, "
COM-
PONENTS" .
CAUTION:
Do not 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-18, "
COMPO-
NENTS" .
CAUTION:
Do not reuse gasket.
Checking Differential Gear OilNDS000CU
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 mount-
ing hole as shown in the figure.
CAUTION:
Do not start engine while checking oil level.

Set a gasket on filler plug (1) and install it on final drive assem-
bly. Refer to RFD-18, "
COMPONENTS" .
CAUTION:
Do not reuse gasket.
PDIA0748J
Oil grade and Viscosity:
Refer to MA-12, "
Fluids and Lubricants" .
Oil capacity:
Approx. 1.4 (3 US pt, 2-1/2 Imp pt)
PDIA0749J
PDIA0749J

SIDE OIL SEAL RFD-15
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 July 2007 FX35/FX45
3. Install side flange with the following procedure.
a. Attach the protector to side oil seal.
b. After the side flange is inserted and the serrated part of side gear has engaged the serrated part of flange, remove the pro-
tector.
c. Put a suitable drift on the center of side flange, then drive it until sound changes.
NOTE:
When installation is completed, driving sound of the side flange
turns into a sound which seems to affect the whole final drive.
d. Confirm that the dimension of the side flange installation (Mea- surement A) in the figure comes into the following.
4. Install drive shaft. Refer to RAX-9, "
REAR DRIVE SHAFT" .
5. Install rear wheel sensor. Refer to BRC-57, "
WHEEL SEN-
SORS" .
6. Install center muffler. Refer to EX-3, "
Components" .
7. When oil leaks while removing, check oil level after the installation. Refer to RFD-9, "
DIFFERENTIAL
GEAR OIL" .
Tool number : KV38107900 (J-39352)
SDIA0822E
Measurement A: 326 - 328 mm (12.83 - 12.91 in)
SDIA1039E

REAR FINAL DRIVE ASSEMBLY RFD-17
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 July 2007 FX35/FX45
7. Set a suitable jack to rear final drive assembly.
CAUTION:
Do not place a suitable jack on the rear cover (aluminum
case).
8. Remove the mounting bolts and nuts connecting to the suspen- sion member, and remove rear final drive assembly with a power
tool.
CAUTION:
Secure rear final drive assembly to a suitable jack while
removing it.
INSTALLATION
Note the following, and installation is in the reverse order of removal.

Refer to RFD-16, "COMPONENTS" about each tightening torque.

When installing breather hoses (1), refer to the figure.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.
–For installation, the vehicle side end shall be inserted to suspen-
sion member (2). Install metal connector (3) side of this hose to
rear cover by inserting it with aiming painted marking to the front
of vehicle.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to RFD-9, "
Checking Differential
Gear Oil" .
SDIA1969J
SDIA1970J
PDIA0754E

RFD-18
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
Disassembly and AssemblyNDS000CX
COMPONENTS
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Gear carrier 6. Side oil seal
7. Side flange 8. Collapsible spacer 9. Pinion rear bearing
10. Pinion height adjusting washer 11. Drive pinion 12. Side bearing adjusting washer
13. Side bearing 14. Side gear thrust washer 15. Circular clip
16. Side gear 17. Lock pin 18. Pinion mate gear
19. Pinion mate thrust washer 20. Pinion mate shaft 21. Drive gear
22. Differential case 23. Bearing cap 24. Filler plug
25. Gasket 26. Rear cover 27. Drain plug
A: Oil seal lip
B: Screw hole
C: After tightening the bolts to the specified torque, tighten the bolts additionally by turning the bolts 31 to 36 degrees.
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
: Apply multi-purpose grease.
: Apply gear oil.
: Apply anti-corrosion oil.
: Apply Genuine Silicone RTV or equivalent. Refer to
GI-48, "
Recommended Chemical Products and Sealants" .
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to
GI-48, "
Recommended Chemical Prod-
ucts and Sealants" .
PDIA0986E