Nissan Murano Z51. Manual - part 497

DLN-122

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DRIVE PINION

3.

Fit a dial indicator to the drive gear back face.

4.

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 as a set.

TOOTH CONTACT

1.

Remove rear cover. Refer to 

DLN-110, "Disassembly"

.

2.

Following the procedure below, install a dummy cover set [SST: KV381086S1 (

—

)] to gear car-

rier.

a.

Set dummy cover shims [SST: KV38108630 (

—

)] to the right and left side bearing adjusting

shims.

b.

Temporarily tighten dummy cover [SST: 38108620 (

—

)] to gear carrier.

c.

Position dummy cover spacers [SST: 38108621 (

—

)] to dummy cover [SST: 38108620 (

—

)].

d.

Tighten rear cover mounting bolts to the specified torque. Refer to 

DLN-116, "Exploded View"

.

e.

Tighten dummy cover spacer mounting bolts evenly to the specified torque.

3.

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.

4.

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.

Limit

Drive gear back face 
runout

: Refer to 

DLN-126, "Drive 

Gear Runout"

.

PDIA0050E

: 5.9 N·m (0.6 kg-m, 52 in-lb)

PDIA0051E

SDIA0570E

DRIVE PINION

DLN-123

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

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Tooth Contact Judgment Guide

5.

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 drive pinion gear adjusting shim to
move drive pinion closer to drive gear.

SDIA2549E

SDIA0517E

PDIA0440E

DLN-124

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DRIVE PINION

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

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

BACKLASH

1.

Remove rear cover. Refer to 

DLN-110, "Disassembly"

.

2.

Following the procedure below, install a dummy cover set [SST: KV381086S1 (

—

)] to gear car-

rier.

a.

Set dummy cover shims [SST: KV38108630 (

—

)] to the right and left side bearing adjusting

shims.

b.

Temporarily tighten dummy cover [SST: KV38108610 (

—

)] to gear carrier.

c.

Position dummy cover spacers [SST: KV38108621 (

—

)] to dummy cover [SST: KV38108610

(

—

)].

d.

Tighten rear cover mounting bolts to the specified torque. Refer to 

DLN-116, "Exploded View"

.

e.

Tighten dummy cover spacer mounting bolts evenly to the specified torque.

3.

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 shims.

Inspection After Disassembly

INFOID:0000000005514273

DRIVE GEAR AND DRIVE PINION

• Clean up the disassembled parts.
• If the gear teeth never mesh or line-up correctly, determine the cause and adjust or replace as necessary.
• 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

• Clean up the disassembled parts.
• If any chipped (by friction), pitted, worn, rusted or scratched marks, or unusual noise from the bearing is

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

SIDE GEAR AND PINION MATE GEAR

PDIA0441E

: 5.9 N·m (0.6 kg-m, 52 in-lb)

Standard

Backlash

: Refer to 

DLN-126, "Back-

lash"

.

When the backlash is large:

Make drive gear back adjusting shims thicker, and drive 
gear front adjusting shims thinner.

When the backlash is small:

Make drive gear back adjusting shims thinner, and 
drive gear front adjusting shims thicker.

PDIA0049E

DRIVE PINION

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[REAR FINAL DRIVE: R145]

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• Clean up the disassembled parts.
• 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

• Clean up the disassembled parts.
• 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

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

COMPANION FLANGE

• Clean up the disassembled parts.
• If any chipped mark [about 0.1 mm, (0.004 in)] or other damage on the contact sides of the lips of the com-

panion flange is found, replace.