seal INFINITI FX35 2008 Service Manual

FRONT OIL SEALFFD-9
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FRONT OIL SEAL
Removal and InstallationINFOID:0000000001327483
REMOVAL
1. Drain gear oil. Refer to FFD-8, "Changing Differential Gear Oil".
2. Remove front propeller shaft. Refer to PR-4, "
Removal and Installation".
3. Remove front drive shaft both. Refer to FAX-16, "
Removal and Installation (Right Side)", FAX-15,
"Removal and Installation (Left Side)".
4. Remove side shaft assembly.
5. Remove drive pinion lock nut using a flange wrench.
6. Put matching mark (B) on the end of the drive pinion. The matching mark (B) should be in line with the matching mark (A)
on companion flange (1).
CAUTION:
For matching mark, use pain t. Never damage companion
flange and drive pinion.
NOTE:
The matching mark (A) on the final drive companion flange (1)
indicates the maximum vertical runout position.
7. Remove companion flange using a puller.
8. Remove front oil seal using the puller. CAUTION:
Be careful not to damage gear carrier.
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PDIA0783J
PDIA0652E
Tool number A: KV381054S0 (J-34286)
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FFD-10
< SERVICE INFORMATION >
FRONT OIL SEAL
INSTALLATION
1. Apply multi-purpose grease to front oil seal lips.
2. Using the drifts, install front oil seal as shown in figure.CAUTION:
• Never reuse oil seal.
 When installing, n ever incline oil seal.
3. Align the matching mark (B) of drive pinion with the matching mark (A) of companion flange, and then install the companion
flange (1).
4. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive
pinion lock nut to drive pinion.
CAUTION:
Never reuse drive pinion lock nut.
5. Tighten to drive pinion lock nut, while adjust total preload torque.
CAUTION:
 Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
 After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
 If measured value is out of the specification, remove final drive assembly and disassemble drive pinion parts to check and
adjust each part. Refer to FFD-14, "
Removal and Installation
(VQ35DE Models)",FFD-15, "Removal and Installation
(VK45DE Models)" and FFD-17, "Disassembly and Assem-
bly".
6. Install front propeller shaft. Refer to PR-4, "
Removal and Instal-
lation".
7. Install side shaft assembly.
8. Install front drive shaft both. Refer to FAX-15, "
Removal and Installation (Left Side)", FAX-16, "Removal
and Installation (Right Side)".
Tool number A: ST33400001 (J-26082)
B: KV38102510 ( — )
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Tool number A: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:127.4 - 245.0 N·m (13.0 - 25.0 kg-m, 94 - 181 ft-lb)
Total preload torque: 1.56 - 2.65 N·m (0.16 - 0.27 kg-m, 14 - 23 in-lb)
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FRONT OIL SEALFFD-11
< SERVICE INFORMATION >
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9. Refill gear oil to the final drive and check oil level. Refer to FFD-8, "Changing Differential Gear Oil".
10. Check the final drive for oil leakage. Refer to FFD-8, "
Checking Differential Gear Oil".
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FFD-12
< SERVICE INFORMATION >
SIDE OIL SEAL
SIDE OIL SEAL
Removal and InstallationINFOID:0000000001327484
NOTE:
Left side oil seal is attached to engine assembly. Replace it when front final drive assembly is removed
from vehicle.
REMOVAL
Right Side:
1. Remove the front drive shaft. Refer to FAX-16, "Removal and Installation (Right Side)".
2. Remove the side oil seal using a flat-bladed screwdriver. CAUTION:
Be careful not to damage gear carrier.
Left Side:
1. Remove the front final drive assembly from vehicle. Refer to FFD-14, "Removal and Installation (VQ35DE
Models)" or FFD-15, "Removal and Installation (VK45DE Models)".
2. Remove the side oil seal using a flat-bladed screwdriver. CAUTION:
Be careful not to damage gear carrier.
INSTALLATION
Right Side:
1. Apply multi-purpose grease to sealing lips of side oil seal.
2. Using the drift, press-fit side oil seal so that its surface comesface to face with the end surface of the side retainer.
CAUTION:
 Never reuse oil seal.
 When installing, n ever incline oil seal.
3. Install the front drive shaft. Refer to FAX-16, "
Removal and
Installation (Right Side)".
Left Side:
1. Apply multi-purpose grease to sealing lips of side oil seal.
2. Using the drift, press-fit side oil seal so that its surface comes
face to face with the end surface of the gear carrier.
CAUTION:
 Never reuse oil seal.
 When installing, n ever incline oil seal.
3. Install the front final drive assembly on vehicle. Refer to FFD-14,
"Removal and Installation (VQ35DE Models)" or FFD-15,
"Removal and Installation (VK45DE Models)".
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Tool number A: ST33400001 (J-26082)
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Tool number A: KV38102100 (J-25803-01)
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SIDE OIL SEALFFD-13
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4. Install the front drive shaft. Refer to FAX-15, "Removal and Installation (Left Side)".
5. When oil leaks while removing, check oil level after the installation. Refer to FFD-8, "
Checking Differential
Gear Oil".
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FFD-14
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
FRONT FINAL DRIVE ASSEMBLY
Removal and Installation (VQ35DE Models)INFOID:0000000001327485
COMPONENTS
REMOVAL
1. Remove three engine mounting bracket upper bolts. Refer to EM-117, "Component (AWD Models)".
2. Remove three way catalyst (right bank). Refer to EM-26
.
3. Remove stabilizer assembly with power tool. Refer to FSU-15
.
4. Remove steering gearbox mounting bolts with power tool. Refer to PS-17
.
5. Remove front drive shaft both. Refer to FA X - 1 3
.
6. Remove side shaft assembly.
7. Remove front propeller shaft. Refer to PR-4
.
8. Remove front suspension member with power tool. Refer to FSU-16
.
9. Remove breather hose and tube.
10. Remove mounting bolts and remove front final drive assembly from the vehicle.
INSTALLATION
Note the following, and installation is in the reverse order of removal.
 Refer to "COMPONENTS" about each tightening torque.
 When installing the side shaft, apply multi-purpose grease to contact surface of side shaft and side shaft oil
seal.
1. Front final drive assembly 2. Side shaft 3. Bushing
4. Front propeller shaft 5. Breather hose 6. Breather tube
7. Breather connector 8. Engine mounting bracket 9. Insulator
Refer to GI-8, "
Component", for the symbols in the figure.
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FFD-16
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
REMOVAL
1. Remove three way catalyst (right bank). Refer to EM-179.
2. Remove stabilizer assembly with power tool. Refer to FSU-15
.
3. Remove steering gearbox mounting bolts with power tool. Refer to PS-17
.
4. Remove front drive shaft both. Refer to FA X - 1 3
.
5. Remove side shaft assembly.
6. Remove front propeller shaft. Refer to PR-4
.
7. Remove front suspension member with power tool. Refer to FSU-16
.
8. Remove engine wire harness clamp bolts from front final drive.
9. Remove breather hose and tube.
10. Remove mounting bolts and remove front final drive assembly from the vehicle.
INSTALLATION
Note the following, and installation is in the reverse order of removal.
 Refer to "COMPONENTS" about each tightening torque.
 When installing side shaft, apply multi-purpose grease to contact surface of side shaft and side shaft oil seal.
1. Front final drive assembly 2. Side shaft 3. Bushing
4. Front propeller shaft 5. Breather tube 6. Breather hose
7. Breather connector 8. Harness bracket
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FFD-18
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting wash-er6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
37. Dust sealed 38. Side shaft
A: Oil seal lip
B: Screw hole
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FRONT FINAL DRIVE ASSEMBLYFFD-19
< SERVICE INFORMATION >
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O PCOMPONENTS (VK45DE MODELS)
Refer to GI-8, "Component" 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-44, "
Recommended Chemical Product and Sealant".
: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to
GI-44, "
Recommended Chemical Prod-
uct and Sealant".
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting wash-
er6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
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FFD-20
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
ASSEMBLY INSPECTION AND ADJUSTMENT
 Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
2. Rotate drive pinion at least 20 times to check for smooth operation of the bearing.
3. Measure total preload with preload gauge.NOTE:
Total preload torque = Pinion bearing preload torque + Side
bearing preload torque
 If measured value is out of the specification, disassemble it to check and adjust each part. Adjust the pinion bearing preload and
side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
37. Dust sealed 38. Side shaft
A: Oil seal lip
B: Screw hole
Refer to GI-8, "
Component" 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-44, "
Recommended Chemical Product and Sealant".
: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to
GI-44, "
Recommended Chemical Prod-
uct and Sealant".
Tool number A: ST3127S000 (J-25765-A)
Total preload torque:
1.56 - 2.65 N·m (0.16 - 0.27 kg-m, 14 - 23 in-lb)
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When the preload torque is largeOn pinion bearings: Decrease the drive pinion bearing adjusting washer and drive pinion
adjusting washer thickness. Refer to FFD-39, "
Inspection and Adjust-
ment" and FFD-39, "Inspection and Adjustment".
On side bearings: Increase the side bear ing adjusting shim thickness. Refer to FFD-39,
"Inspection and Adjustment".
When the preload torque is small On pinion bearings: Increase the drive pinion bearing adjusting washer and drive pinion
adjusting washer thickness. Refer to FFD-39, "
Inspection and Adjust-
ment" and FFD-39, "Inspection and Adjustment".
On side bearings: Decrease the side bearin g adjusting shim thickness. Refer to FFD-39,
"Inspection and Adjustment".
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