Infiniti G35 (V35) Sedan. Manual — part 455

DLN-254

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R200V]

DIFFERENTIAL ASSEMBLY

SIDE BEARING PRELOAD

• Before inspection and adjustment, drain gear oil.

1.

Remove rear cover. Refer to

DLN-247, "M/T : Disassembly"

.

2.

Make sure all parts are clean. Also, make sure the bearings are
well lubricated with gear oil.

3.

Place the differential case, with side bearings and bearing races
installed, into gear carrier.

4.

Insert left and right original side bearing adjusting washers in
place between side bearings and gear carrier.

5.

Install bearing caps in their correct locations and tighten bearing
cap mounting bolts.

6.

Turn the carrier several times to seat the bearings.

7.

Measure the turning torque of the carrier at the drive gear
mounting bolts with a spring gauge [SST:

—

(J-8129)].

When the preload is small

On pinion bearings:

Tighten the drive pinion lock nut.

On side bearings:

Use thicker side bearing adjusting washers by the same amount to
each side.

SPD919

SPD924

PDIA0069E

Specification

: 34.2 – 39.2 N (3.5 – 4.0 kg,
7.7 – 8.8 lb) of pulling force
at the drive gear bolt

SPD194A

DIFFERENTIAL ASSEMBLY

DLN-255

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R200V]

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8.

If the turning torque is outside the specification, use a thicker/
thinner side bearing adjusting washer to adjust.

CAUTION:

Select a side bearing adjusting washer for right and left
individually.

9.

Record the total amount of washer thickness required for the correct carrier side bearing preload.

DRIVE GEAR RUNOUT

1.

Remove rear cover. Refer to

DLN-247, "M/T : Disassembly"

.

2.

Fit a dial indicator to the drive gear back face.

3.

Rotate the drive gear to measure runout.

• If the runout is outside of the repair limit, check drive gear

assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive
gear may be deformed, etc.

CAUTION:

Replace drive gear and drive pinion gear as a set.

TOOTH CONTACT

• Before inspection and adjustment, drain gear oil.
1.

Remove rear cover. Refer to

DLN-247, "M/T : Disassembly"

.

2.

Apply red lead to drive gear.

CAUTION:

Apply red lead to both the faces of 3 to 4 gears at 4 loca-
tions evenly spaced on drive gear.

3.

Rotate drive gear back and forth several times, check drive pin-
ion gear to drive gear tooth contact.

CAUTION:

Check tooth contact on drive side and reverse side.

If the turning torque is less than the specified range:

Use a thicker thrust washer.

If the turning torque is greater than the specification:

Use a thinner thrust washer.

SPD772

Limit

Drive gear runout

: Refer to

DLN-287, "Drive

Gear Runout"

.

SPD886

SPD357

SDIA0570E

DLN-256

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R200V]

DIFFERENTIAL ASSEMBLY

4.

If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).

• If the tooth contact is near the face (face contact), or near the

heel (heel contact), thicken pinion height adjusting washers to
move drive pinion closer to drive gear.

SDIA0207E

SDIA0517E

PDIA0440E

DIFFERENTIAL ASSEMBLY

DLN-257

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R200V]

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• If the tooth contact is near the flank (flank contact), or near the

toe (toe contact), thin pinion height adjusting washers to move
drive pinion farther from drive gear.

BACKLASH

• Before inspection and adjustment, drain gear oil.

1.

Remove rear cover. Refer to

DLN-247, "M/T : Disassembly"

.

2.

Fit a dial indicator to the drive gear face to measure the back-
lash.

• If the backlash is outside of the specified value, change the

thickness of side bearing adjusting washer.

CAUTION:

Never change the total amount of washers as it will change the bearing preload.

M/T : Inspection After Disassembly

INFOID:0000000000957446

Clean up the disassembled parts. Then, inspect if the parts are worn or damaged. If so, follow the measures
below.

PDIA0441E

Standard

Backlash

: Refer to

DLN-287, "Back-

lash"

.

When the backlash is large:

Make drive gear back side adjusting washer thicker,
and drive gear tooth side adjusting washer thinner by
the same amount.

When the backlash is small:

Make drive gear back side adjusting washer thinner,
and drive gear tooth side adjusting washer thicker by
the same amount.

SPD513

Content

Conditions and Measures

Hypoid gear

• If the gear teeth do not mesh or line-up correctly, determine the cause and adjust or replace as nec-

essary.

• If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new

drive gear and drive pinion as a set.

Bearing

• If any chipped (by friction), pitted, worn, rusted or scratched mark, or unusual noise from the bearing

is observed, replace as a bearing assembly (as a new set).

Side gear and Pinion mate
gear

• If any cracks or damage on the surface of the tooth is found, replace.
• If any worn or chipped mark on the contact sides of the thrust washer is found, replace.

Side gear thrust washer and
pinion mate thrust washer

• If it is chipped (by friction), damaged, or unusually worn, replace.

Oil seal

• Whenever disassembled, replace.
• If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace them.

Differential case

• If any wear or crack on the contact sides of the differential case is found, replace.

Companion flange

• If any chipped mark (about 0.1 mm, 0.004 in) or other damage on the contact sides of the lips of the

companion flange is found, replace.