Nissan Pathfinder (2010 year). Manual — part 222
FRONT OIL SEAL
DLN-349
< ON-VEHICLE REPAIR >
[FRONT FINAL DRIVE: R180A]
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ON-VEHICLE REPAIR
FRONT OIL SEAL
Removal and Installation
INFOID:0000000005258477
REMOVAL
1. Remove the drive shafts from the front final drive assembly. Refer to
RAX-8, "Removal and Installation"
.
2. Remove the front propeller shaft from the front final drive assembly. Refer to
.
3. Measure the total preload torque. Refer to
DLN-356, "Disassembly and Assembly"
.
NOTE:
Record the total preload torque measurement.
4. Remove the drive pinion lock nut using suitable tool.
5. Put matching marks on the companion flange and drive pinion
using paint.
CAUTION:
Use paint to make the matching marks. Do not damage the
companion flange or drive pinion.
6. Remove the companion flange using suitable tool.
7. Remove the front oil seal using Tool.
INSTALLATION
BDIA0001E
LDIA0171E
Tool number
: KV381054S0 (J-34286)
LDIA0172E
2010 Pathfinder
DLN-350
< ON-VEHICLE REPAIR >
[FRONT FINAL DRIVE: R180A]
FRONT OIL SEAL
1. Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new front oil seal. Then drive the new
front oil seal in evenly until it becomes flush with the gear carrier
using Tools.
CAUTION:
• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new front oil seal.
2. Install the companion flange to the drive pinion while aligning the matching marks.
3. Apply anti-corrosive oil to the threads of the drive pinion and the
seating surface of the new drive pinion lock nut. Then adjust the
drive pinion lock nut tightening torque using suitable tool A, and
check the total preload torque using Tool B.
• The total preload torque should be within the total preload
torque specification. When not replacing the collapsible
spacer, it should also be equal to the measurement taken dur-
ing removal plus an additional 0.56 N·m (0.06 Kg-m, 5 in-lb).
• If the total preload torque is low, tighten the drive pinion lock
nut in 6.8 N·m (0.69 Kg-m, 5ft-lb) increments until the total pre-
load torque is met.
CAUTION:
• Do not reuse drive pinion lock nut.
• Apply anti-corrosive oil to the threads of the drive pinion
and the seating surface of the new drive pinion lock nut.
• Adjust the drive pinion lock nut tightening torque to the
lower limit first. Do not exceed the drive pinion lock nut
.
• Do not loosen drive pinion lock nut to adjust the total preload torque. If the drive pinion lock nut
torque or the total preload torque exceeds the specifications, replace the collapsible spacer and
tighten it again to adjust. Refer to
DLN-356, "Disassembly and Assembly"
• After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-
tion malfunction, and other malfunctions.
4. Install new side oil seals into the front final drive assembly. Refer to
DLN-351, "Removal and Installation"
.
5. Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-348, "Checking Differential Gear
.
Tool number
A: ST30720000 (J-25405)
B: ST27863000 ( — )
WDIA0147E
Tool number
B: ST3127S000 (J-25765-A)
Total preload torque: Refer to
.
WDIA0381E
2010 Pathfinder
SIDE OIL SEAL
DLN-351
< ON-VEHICLE REPAIR >
[FRONT FINAL DRIVE: R180A]
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SIDE OIL SEAL
Removal and Installation
INFOID:0000000005258478
REMOVAL
1. Remove the drive shafts from the front final drive assembly. Refer to
.
2. Remove the side oil seal using suitable tool.
CAUTION:
Do not reuse the side oil seal.
INSTALLATION
1. Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new side oil seal. Then drive the new
side oil seal in evenly until it becomes flush with the gear carrier
using Tools.
CAUTION:
• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new side oil seal.
2. Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-348, "Checking Differential Gear
.
LDIA0173E
Tool number
A: ST30720000 (J-25405)
B: ST27863000 ( — )
PDIA0826E
2010 Pathfinder
DLN-352
< ON-VEHICLE REPAIR >
[FRONT FINAL DRIVE: R180A]
CARRIER COVER
CARRIER COVER
Removal and Installation
INFOID:0000000005258479
REMOVAL
1. Remove the front final drive assembly. Refer to
DLN-353, "Removal and Installation"
2. Remove the carrier cover bolts and separate the carrier cover
from the gear carrier using Tool.
CAUTION:
• Do not damage the mating surface.
• Do not insert flat-bladed screwdriver, this will damage the
mating surface.
INSTALLATION
1. Apply a 3 mm (0.12 in) bead of sealant to the mating surface of
the carrier cover as shown.
• Use Genuine Silicone RTV or equivalent. Refer to
"Recommended Chemical Products and Sealants"
.
CAUTION:
Remove any old sealant adhering to the mating surfaces.
Also remove any moisture, oil, or foreign material adhering
to the application and mating surfaces.
2. Install the carrier cover to the gear carrier. Tighten the bolts to
the specified torque. Refer to
3. Install the front final drive assembly. Refer to
CAUTION:
Fill the front final drive assembly with recommended differential gear oil. Refer to
Tool number
: KV10111100 (J-37228)
PDIA0699E
PDIA0712E
2010 Pathfinder
FRONT FINAL DRIVE ASSEMBLY
DLN-353
< REMOVAL AND INSTALLATION >
[FRONT FINAL DRIVE: R180A]
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REMOVAL AND INSTALLATION
FRONT FINAL DRIVE ASSEMBLY
Removal and Installation
INFOID:0000000005258480
REMOVAL
1. Drain the differential gear oil. Refer to
2. Remove the drive shafts from the front final drive assembly. Refer to
.
3. Remove the front crossmember.
4. Remove the front propeller shaft from the front final drive assembly. Refer to
.
5. Disconnect the vent hose from the front final drive assembly.
1.
Breather hose
2.
Front final drive assembly
3.
Front crossmember
Vehicle front
AWDIA0018GB
2010 Pathfinder
DLN-354
< REMOVAL AND INSTALLATION >
[FRONT FINAL DRIVE: R180A]
FRONT FINAL DRIVE ASSEMBLY
6. Support the front final drive assembly using a suitable jack.
7. Remove the front final drive assembly bolts, then remove the
front final drive assembly.
CAUTION:
Support the front final drive assembly while removing using
a suitable jack.
INSTALLATION
Installation is in the reverse order of removal.
• Install new side oil seals into the front final drive assembly. Refer to
DLN-351, "Removal and Installation"
.
CAUTION:
• Make sure there are no pinched or restricted areas on the breather hose caused by folding or bend-
ing when installing it.
• Fill the front final drive assembly with differential gear oil after installation. Refer to
WDIA0145E
2010 Pathfinder
FRONT FINAL DRIVE
DLN-355
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
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DISASSEMBLY AND ASSEMBLY
FRONT FINAL DRIVE
Exploded View
INFOID:0000000005588048
1.
Drive pinion lock nut
2.
Companion flange
3.
Front oil seal
4.
Drive pinion front bearing
5.
Gear carrier
6.
Side oil seal
7.
Bushing
8.
Differential side shaft
9.
Differential side shaft bearing
10. Snap ring
11. Snap ring
12. Gasket
13. Drain plug
14. Collapsible spacer
15. Drive pinion rear bearing
16. Drive pinion height adjusting washer 17. Drive pinion
18. Side bearing adjusting washer
19. Side bearing
20. Side gear thrust washer
21. Side gear
22. Pinion mate shaft
23. Lock pin
24. Pinion mate gear
25. Pinion mate thrust washer
26. Drive gear
27. Differential case
28. Housing spacer
29. Side bearing cap
30. Filler plug
AWDIA0750GB
2010 Pathfinder
DLN-356
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
FRONT FINAL DRIVE
Disassembly and Assembly
INFOID:0000000005258481
ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspection and adjustment. Refer to
.
• Remove and install the carrier cover as necessary for inspection and adjustment. Refer to
.
Total Preload Torque
1. Install the differential side shaft if necessary. Refer to
DLN-351, "Removal and Installation"
.
CAUTION:
The differential side shaft must be installed in order to measure total preload torque.
2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
3. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
4. Measure total preload torque using Tool.
NOTE:
Total preload torque = Drive pinion bearing preload torque +
Side bearing preload torque
• If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion
bearing preload torque first, then adjust the side bearing preload torque.
CAUTION:
Select a side bearing adjusting washer for right and left individually.
Drive Gear Runout
1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure runout.
• If the runout is outside of the limit, check the condition of the drive
gear assembly. Foreign material may be caught between the drive
gear and differential case, or the differential case or drive gear may
be deformed.
CAUTION:
31. Carrier cover
A.
Seal lip
B.
Screw hole
C.
Refer to INSTALLATION
Tool number
: ST3127S000 (J-25765-A)
Total preload torque:
PDIA0697E
If the total preload torque is greater than specification
On drive pinion bearings: Replace the collapsible spacer.
On side bearings:
Use thinner side bearing adjusting washers by the same
amount on each side. Refer to
DLN-374, "Inspection and Adjust-
If the total preload torque is less than specification
On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings:
Use thicker side bearing adjusting washers by the same
amount on each side. Refer to
DLN-374, "Inspection and Adjust-
Runout limit:
Refer to
SPD886
2010 Pathfinder
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