Nissan Pathfinder (2012 year). Manual — part 237
SIDE OIL SEAL
DLN-461
< REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
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Check the differential gear oil level after installation. Refer to
DLN-457, "Checking Differential Gear
.
August 2012
2012 Pathfinder
DLN-462
< REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
CARRIER COVER
CARRIER COVER
Removal and Installation
INFOID:0000000007357665
REMOVAL
1. Drain the differential gear oil. Refer to
DLN-457, "Changing Differential Gear Oil"
2. Remove the rear final drive assembly. Refer to
DLN-463, "Removal and Installation"
.
3. 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 rear final drive assembly. Refer to
CAUTION:
Fill the rear final drive assembly with recommended differential gear oil. Refer to
Tool number
: KV10111100 (J-37228)
WDIA0123E
WDIA0282E
August 2012
2012 Pathfinder
REAR FINAL DRIVE
DLN-463
< UNIT REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
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UNIT REMOVAL AND INSTALLATION
REAR FINAL DRIVE
Removal and Installation
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REMOVAL
1. Remove the spare tire.
2. Remove the rear stabilizer bar. Refer to
RSU-18, "Removal and Installation"
.
3. Remove the rear propeller shaft. Refer to
DLN-340, "Removal and Installation"
4. Remove the rear drive shafts from the rear final drive assembly
and support them using suitable wire. Refer to
5. Disconnect the breather hose from the rear final drive assembly.
1.
Rear final drive assembly
2.
Upper stopper
3.
Washer
4.
Lower stopper
Vehicle front
WDIA0383E
LDIA0164E
August 2012
2012 Pathfinder
DLN-464
< UNIT REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
6. Place a suitable jack under the rear final drive assembly.
CAUTION:
Do not place the jack on the carrier cover.
7. Remove the nuts and bolts and remove the rear final drive
assembly.
CAUTION:
Secure rear final drive assembly to the jack while removing
it.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• When installing the breather hose make sure the painted marking on the metal end of breather hose
is to the front of the vehicle and there are no pinched or restricted areas on the breather hose
caused by folding or bending when installing it.
• When installing the breather hose insert the plastic end of the breather hose into the hole in the sus-
pension member.
WDIA0117E
August 2012
2012 Pathfinder
REAR FINAL DRIVE
DLN-465
< UNIT REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
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REAR FINAL DRIVE BREATHER
• Check the rear final drive assembly differential gear oil after installation and refill as necessary.
Refer to
DLN-457, "Changing Differential Gear Oil"
.
LDIA0166E
1.
Breather hose
2.
Plastic connector
3.
Rear final drive assembly
4.
Metal connector
5.
Paint mark
August 2012
2012 Pathfinder
DLN-466
< UNIT DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
UNIT DISASSEMBLY AND ASSEMBLY
REAR FINAL DRIVE
Exploded View
INFOID:0000000007357667
WDIA0191E
August 2012
2012 Pathfinder
REAR FINAL DRIVE
DLN-467
< UNIT DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R230]
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Disassembly and Assembly
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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. Remove the side flanges if necessary. Refer to
DLN-460, "Removal and Installation"
.
CAUTION:
The side flanges shaft must be removed 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 the 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.
Drive pinion lock nut
2.
Companion flange
3.
Front oil seal
4.
Drive pinion front bearing
5.
Collapsible spacer
6.
Drive pinion rear bearing
7.
Drive pinion height adjusting
washer
8.
Drive pinion
9.
Gear carrier
10. Drive gear
11. Pinion mate shaft
12. Lock pin
13. Pinion mate gear
14. Pinion mate thrust washer
15. Side gear
16. Side gear thrust washer
17. Differential case
18. Side bearing
19. Side bearing adjusting washer 20. Bearing cap
21. Carrier cover
22. Filler plug
23. Drain plug
24. Side oil seal
Tool number
: ST3127S000 (J-25765-A)
Total preload
torque:
Refer to
SPD884
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-483, "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
August 2012
2012 Pathfinder
DLN-468
< UNIT DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
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:
Replace drive gear and drive pinion as a set.
Tooth Contact
1. Apply red lead to the drive gear.
NOTE:
Apply red lead to both faces of three to four gears, at four loca-
tions evenly spaced on the drive gear.
2. Rotate the drive gear back and forth several times. Then check
for correct drive pinion to drive gear tooth contact as shown.
CAUTION:
Check tooth contact on drive side and reverse side.
3. If the tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).
Runout limit
Refer to
SPD886
SPD357
SDIA0570E
SDIA0517E
August 2012
2012 Pathfinder
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