Nissan Pathfinder (2007 year). Manual - part 252

 

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Nissan Pathfinder (2007 year). Manual - part 252

 

 

FRONT OIL SEAL

FFD-9

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FFD

2007 Pathfinder

FRONT OIL SEAL

PFP:38189

Removal and Installation

EDS0039N

REMOVAL

1.

Remove the drive shafts from the front final drive assembly. Refer to 

FAX-7, "Removal and Installation"

 .

2.

Remove the front propeller shaft from the front final drive assembly. Refer to 

PR-5, "Removal and Installa-

tion"

 .

3.

Measure the total preload torque. Refer to 

FFD-16, "Total Preload Torque"

 .

NOTE:
Record the total preload torque measurement.

4.

Remove the drive pinion lock nut using 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.

Tool number

: KV38108300 (

)

BDIA0001E

LDIA0171E

Tool number

: KV381054S0 (J-34286)

LDIA0172E

FFD-10

FRONT OIL SEAL

2007 Pathfinder

INSTALLATION

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 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
preload 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
specified torque. Refer to 

FFD-15, "COMPONENTS"

 .

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 

FFD-15, "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 

FFD-11, "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 

FFD-8, "Checking Differential Gear

Oil"

 .

Tool number

A: ST30720000 (J-25405)

B: ST27863000 (

)

WDIA0147E

Tool number

A: KV38108300 (

)

B: ST3127S000 (J-25765-A)

Total preload torque:

Refer to 

FFD-16, "Total Pre-

load Torque"

 .

WDIA0381E

SIDE OIL SEAL

FFD-11

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2007 Pathfinder

SIDE OIL SEAL

PFP:33142

Removal and Installation

EDS0039O

REMOVAL

1.

Remove the drive shafts from the front final drive assembly. Refer to 

FAX-7, "Removal and Installation"

 .

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 

FFD-8, "Checking Differential Gear

Oil"

 .

LDIA0173E

Tool number

A: ST30720000 (J-25405)

B: ST27863000 (

)

PDIA0826E

FFD-12

CARRIER COVER

2007 Pathfinder

CARRIER COVER

PFP:38351

Removal and Installation

EDS0039P

REMOVAL

1.

Remove the front final drive assembly. Refer to 

FFD-13, "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 

GI-47,

"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 

FFD-15, "COMPONENTS"

 .

3.

Install the front final drive assembly. Refer to 

FFD-13, "Removal

and Installation"

 .

CAUTION:

Fill the front final drive assembly with recommended differential gear oil. Refer to 

FFD-8, "DIFFER-

ENTIAL GEAR OIL"

 .

Tool number

: KV10111100 (J-37228)

PDIA0699E

PDIA0712E

FRONT FINAL DRIVE ASSEMBLY

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FRONT FINAL DRIVE ASSEMBLY

PFP:38500

Removal and Installation

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REMOVAL

1.

Drain the differential gear oil. Refer to 

FFD-8, "DIFFERENTIAL GEAR OIL"

 .

2.

Remove the drive shafts from the front final drive assembly. Refer to 

FAX-7, "Removal and Installation"

 .

3.

Remove the front crossmember.

4.

Remove the front propeller shaft from the front final drive assembly. Refer to 

PR-5, "Removal and Installa-

tion"

 .

5.

Disconnect the vent hose from the front final drive assembly.

6.

Support the front final drive assembly using a suitable jack.

1.

Breather hose

2.

Front final drive assembly

3.

Front crossmember

4.

Engine under cover

LDIA0179E

FFD-14

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

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 

FFD-11, "Removal and Installation"

 .

CAUTION:

Make sure there are no pinched or restricted areas on the breather hose caused by folding or
bending when installing it.

Fill the front final drive assembly with differential gear oil after installation. Refer to 

FFD-8, "DIF-

FERENTIAL GEAR OIL"

 .

WDIA0145E

FRONT FINAL DRIVE ASSEMBLY

FFD-15

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FFD

2007 Pathfinder

Disassembly and Assembly

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COMPONENTS

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

31. Carrier cover

WDIA0265E

FFD-16

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

ASSEMBLY INSPECTION AND ADJUSTMENT

Drain the differential gear oil before inspection and adjustment. Refer to 

FFD-8, "DIFFERENTIAL GEAR

OIL"

 .

Remove and install the carrier cover as necessary for inspection and adjustment. Refer to 

FFD-12, "CAR-

RIER COVER"

 .

Total Preload Torque

1.

Install the differential side shaft if necessary. Refer to 

FFD-33, "Differential side shaft"

 .

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:

Replace drive gear and drive pinion as a set.

Tool number

: ST3127S000 (J-25765-A)

Total preload torque:

1.67 - 2.74 N·m (0.17 - 0.27 kg-m, 15 - 24 in-lb)

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 

FFD-35, "Side Bearing Adjusting 

Washer"

 .

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 

FFD-35, "Side Bearing Adjusting 

Washer"

 .

Runout limit:

0.08 mm (0.0031 in) or less

SPD886

 

 

 

 

 

 

 

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