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Nissan Pathfinder (2008 year). Manual - part 232

DLN-440

< FUNCTION DIAGNOSIS >

[REAR FINAL DRIVE: R230 (4WD)]

DESCRIPTION

DESCRIPTION

Cross-Sectional View

INFOID:0000000001297302

Side flange

Pinion mate gear

Drive gear

Pinion mate shaft

Differential case

Side bearing

Drive pinion

Drive pinion front bearing

Companion flange

10. Collapsible spacer

11.

Drive pinion rear bearing

12. Side gear

WDIA0119E

DIFFERENTIAL GEAR OIL

DLN-441

< ON-VEHICLE MAINTENANCE >

[REAR FINAL DRIVE: R230 (4WD)]

DLN

ON-VEHICLE MAINTENANCE

DIFFERENTIAL GEAR OIL

Changing Differential Gear Oil

INFOID:0000000001316524

DRAINING

Stop the engine.

Remove the drain plug and gasket from the rear final drive
assembly to drain the differential gear oil.

Install the drain plug with a new gasket to the rear final drive
assembly. Tighten to the specified torque. Refer to

DLN-450,

"Disassembly and Assembly"

CAUTION:

Do not reuse gasket.

FILLING

Remove the filler plug and gasket from the rear final drive
assembly.

Fill the rear final drive assembly with new differential gear oil
until the level reaches the specified level near the filler plug hole.

Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to

DLN-450,

"Disassembly and Assembly"

CAUTION:

Do not reuse gasket.

Checking Differential Gear Oil

INFOID:0000000001316525

OIL LEAKAGE AND OIL LEVEL

Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.

Check the differential gear oil level from the filler plug hole as
shown.

CAUTION:

Do not start engine while checking differential gear oil level.

Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to

DLN-450,

"Disassembly and Assembly"

CAUTION:

Do not reuse gasket.

LLIA0068E

Differential gear oil
grade and capacity

: Refer to

MA-10, "Fluids and

Lubricants"

LLIA0068E

DLN-442

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R230 (4WD)]

FRONT OIL SEAL

ON-VEHICLE REPAIR

FRONT OIL SEAL

Removal and Installation

INFOID:0000000001316526

REMOVAL

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

RAX-9, "Removal and Installation"

Remove the side flanges and side oil seals. Refer to

DLN-444, "Removal and Installation"

Remove the rear propeller shaft. Refer to

DLN-316, "Removal and Installation"

(2S1330) or

DLN-325,

"Removal and Installation"

(2S1350).

Measure the total preload torque. Refer to

DLN-466, "Inspection and Adjustment"

NOTE:
Record the total preload torque measurement.

Remove the drive pinion lock nut using Tool.

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.

Remove the companion flange using suitable tool.

Remove the front oil seal using Tool.

INSTALLATION

Tool number

: KV40104000 (

—

)

SDIA1142E

SDIA1054E

Tool number

: KV381054S0 (J-34286)

SDIA0485E

FRONT OIL SEAL

DLN-443

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R230 (4WD)]

DLN

Apply multi-purpose grease to the lips of the new front oil seal.
Then drive the new front oil seal in evenly until it becomes flush
with the gear carrier using Tool.

CAUTION:

• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips of the new front oil

seal.

Install the companion flange to the drive pinion while aligning the matching marks.

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 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
specified torque. Refer to

DLN-450, "Disassembly and Assembly"

• Do not loosen drive pinion lock nut to adjust the total preload torque. If the total preload torque

exceeds the specifications, replace the collapsible spacer and tighten it again to adjust. Refer to

DLN-450, "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.

Installation of the remaining components is in the reverse order of removal.

CAUTION:

Check the differential gear oil level after installation. Refer to

DLN-441, "Checking Differential Gear

Oil"

Tool number

: ST15310000 (

—

)

PDIA0565E

Tool number

A: KV40104000 (

—

)

B: ST3127S000 (J-25765-A)

Total preload torque:

Refer to

DLN-466, "Inspection

and Adjustment"

WDIA0380E

DLN-444

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R230 (4WD)]

SIDE OIL SEAL

SIDE OIL SEAL

Removal and Installation

INFOID:0000000001316527

REMOVAL

Remove the drive shaft from the rear final drive assembly. Refer to

RAX-9, "Removal and Installation"

Remove the side flange using Tools.

Remove the side oil seal using suitable tool.

CAUTION:

Do not to damage gear carrier.

INSTALLATION

Apply multi-purpose grease to the lips of the new side oil seal.
Then drive the new side oil seal in evenly until it becomes flush
with the gear carrier using Tool.

CAUTION:

• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips of the new side oil

seal.

Install the side flange using Tool.

Install the Tool to the side oil seal as shown.

Insert the side flange until the serrated part of the side flange
has engaged the serrated part of the side gear and remove the
Tool.

Drive in the side flange using suitable tool.
NOTE:
Installation is completed when the driving sound of the side
flange turns into a sound which seems to affect the whole rear
final drive assembly.

Installation of the remaining components is in the reverse order of removal.

CAUTION:

Tool numbers

A: KV40104100 (

—

)

B: ST36230000 (J-25840-A)

WDIA0115E

LDIA0109E

Tool number

: ST35271000 (

—

)

LDIA0111E

Tool number

: KV38107900 (J-39352)

SDIA0822E

SIDE OIL SEAL

DLN-445

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R230 (4WD)]

DLN

Check the differential gear oil level after installation. Refer to

DLN-441, "Checking Differential Gear

Oil"

DLN-446

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R230 (4WD)]

CARRIER COVER

CARRIER COVER

Removal and Installation

INFOID:0000000001316528

REMOVAL

Remove the rear final drive assembly. Refer to

DLN-447, "Removal and Installation"

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

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-26,

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.

Install the carrier cover to the gear carrier. Tighten the bolts to
the specified torque. Refer to

DLN-450, "Disassembly and

Assembly"

Install the rear final drive assembly. Refer to

DLN-447, "Removal

and Installation"

CAUTION:

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

DLN-441

Tool number

: KV10111100 (J-37228)

WDIA0123E