Nissan Murano Z51 (2008 year). Manual - part 135

REAR FINAL DRIVE ASSEMBLY

DLN-99

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145]

DLN

Remove final drive mounting nuts and final drive mounting bolts
with power tool. If necessary, remove final drive mounting
bracket and washer with power tool.

CAUTION:

Secure final drive assembly to a suitable jack while remov-
ing it.

10. Remove dynamic damper assembly.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Install the breather hose (1) to breather connector until dimension

(A) shown as follows.

CAUTION:

• Never reuse hose clamp.
• Make sure there are no pinched or restricted areas on the

breather hose caused by bending or winding when installing
it.

• Install the hose clamp at the final drive side, with the tab facing to the vehicle front.
• Install the hose clamp at the suspension member side, with the tab facing down ward.

• If remove breather connector (2) and metal connector (3), install

breather hose (1), breather connector and metal connector as
shown in the figure.

- For installation, insert breather connector into the square hole of

rear suspension. Install metal connector to rear cover with aiming
painted marking to the front of vehicle.

• Install the electric controlled coupling breather hose (1) as shown

in the figure.

- Install electric controlled coupling breather hose at the coupling

side to the metal tube (3) of the coupling cover (2) all the way to
the point shown by the solid arrow (

- Install electric controlled coupling breather hose at the suspension

member side until dimension (L) shown as follows.

- Install the hose clip at the position 152 mm from breather hose end on the breather connector side.

CAUTION:

• Make sure there are no pinched or restricted areas on the breather hose caused by bending or

winding when installing it.

• Make sure that insert hose clip into the hole of final drive mounting bracket.

JPDID0170ZZ

Final drive side

: 20 mm (0.79 in)

Suspension member side

: 20.7 mm (0.815 in)

: Vehicle front

JPDID0020ZZ

JPDID0159ZZ

: Vehicle front

: 15 mm

JSDIA1094ZZ

Revision: 2008 October

2009 Murano

DLN-100

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145]

REAR FINAL DRIVE ASSEMBLY

• If remove breather connector of the electric controlled coupling (1)

and metal tube (2), install them as shown in the figure.

- Install the breather connector at the insertion side to the suspen-

sion member, facing to the vehicle front.

- Install the metal tube to the coupling cover, facing to the vehicle

front.

CAUTION:

Never reuse breather connector and metal connector.

• When oil leaks while removing final drive assembly, check oil level

after the installation. Refer to

DLN-90, "Inspection"

JSDIA0983ZZ

Revision: 2008 October

2009 Murano

ELECTRIC CONTROLLED COUPLING

DLN-101

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

DISASSEMBLY AND ASSEMBLY

ELECTRIC CONTROLLED COUPLING

Exploded View

INFOID:0000000003412882

Filler plug

Gasket

Drain plug

Rear cover

Side oil seal

Side bearing adjusting shim

Side bearing

Drive gear

Differential case

10. Pinion mate thrust washer

11.

Pinion mate gear

12. Pinion mate shaft

13. Lock pin

14. Side gear thrust washer

15. Side gear

16. Drive pinion

17. Pinion rear bearing

18. Drive pinion adjusting shim

19. Collapsible spacer

20. Gear carrier

21. Pinion front bearing

22. Drive pinion nut

23. Center oil seal

24. AWD solenoid harness

25. Electric controlled coupling

26. Coupling cover

27. Reamer bolt

28. Connector bracket

29. Front oil seal

30. Companion flange

31. Companion flange lock nut

Oil seal lip

Screw hole

: Apply gear oil.

: Apply anti-corrosive oil.

: Apply Genuine Silicone RTV or equivalent. Refer to

: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Prod-

ucts and Sealants"

Refer to

GI-4, "Components"

for symbols not described above.

JSDIA1027GB

Revision: 2008 October

2009 Murano

DLN-102

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

ELECTRIC CONTROLLED COUPLING

Disassembly

INFOID:0000000003412883

Remove connector bracket.

Put matching mark on the thread edge of electric controlled cou-
pling. The matching mark should be in line with the matching
mark on companion flange.

CAUTION:

For matching mark, use paint. Never damage electric con-
trolled coupling.
NOTE:
When replacing electric controlled coupling, matching mark is
not necessary.

Remove companion flange lock nut, using a flange wrench
(commercial service tool).

Remove companion flange.

Remove coupling cover.

Remove front oil seal from coupling cover, using a suitable tool.

CAUTION:

Be careful not to damage coupling cover.

Remove electric controlled coupling.

Remove AWD solenoid harness.

Remove center oil seal from gear carrier.

Assembly

INFOID:0000000003412884

Using the drift (A) [SST: ST35271000 (J-26091)], install center
oil seal (1) as shown in the figure.

CAUTION:

• Never reuse oil seal.
• When installing, never incline oil seal.
• Apply multi-purpose grease onto oil seal lips, and gear oil

onto the circumference of oil seal.

Connect AWD solenoid harness to electric controlled coupling.

PDIA0455E

PDIA0442E

PDG0213D

: 0.8 – 1.2 mm (0.031 – 0.047 in)

JSDIA0260ZZ

Revision: 2008 October

2009 Murano

ELECTRIC CONTROLLED COUPLING

DLN-103

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

Install electric controlled coupling to spline of drive pinion inside
gear carrier.

CAUTION:

• Align the pin on electric controlled coupling with the

groove of gear carrier.

• Be careful not to damage center oil seal.

Set AWD solenoid harness guide to gear carrier.

Using the drifts, drive front oil seal until it becomes flush with the
coupling cover end.

CAUTION:

• Never reuse oil seal.
• When installing, never incline oil seal.
• Apply multi-purpose grease onto oil seal lips, and gear oil

onto the circumference of oil seal.

Apply liquid gasket to mating surface of coupling cover. Overlap
both ends of the bead for at least 3 mm (0.12 in).
Use Genuine Silicone RTV or equivalent. Refer to

GI-17, "Rec-

ommended Chemical Products and Sealants"

CAUTION:

Remove old gasket adhering to the mounting surfaces.
Also remove any moisture, oil, or foreign material adhering
to the mounting surfaces.

Install coupling cover to gear carrier with arrow facing upward,
temporarily tighten reamer bolts to the positions shown in the
figure.

Tighten reamer bolts and coupling cover mounting bolts to the
specified torque.

Install connector bracket, and tighten bolts to the specified
torque.

10. Install companion flange.

NOTE:
When reusing electric controlled coupling, align the matching
mark of electric controlled coupling with the matching mark of
companion flange, then install companion flange.

11. Install companion flange lock nut with flange wrench (commer-

cial service tool), tighten to the specified torque.

CAUTION:

Never reuse companion flange lock nut.

12. Check companion flange runout. Refer to

DLN-104, "Adjust-

ment"

PDIA0463E

: Drift [SST: KV38100200 (J-26233)]

: Drift [SST: ST27861000 (

—

)]

PDIA0449E

PDIA0613E

SDIA0587E

PDIA0455E

Revision: 2008 October

2009 Murano

DLN-104

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

ELECTRIC CONTROLLED COUPLING

Adjustment

INFOID:0000000003412885

COMPANION FLANGE RUNOUT

Fit a dial indicator onto the companion flange face (inner side of
the rear propeller shaft mounting bolt holes).

Rotate companion flange to check for runout.

Fit a test indicator to the inner side of companion flange (socket
diameter).

Rotate companion flange to check for runout.

If the runout value is outside the runout limit, follow the procedure below to adjust.

Check for runout while changing the phase between companion flange and drive pinion by 90

step, and

search for the position where the runout is the minimum.

If the runout value is still outside of the limit after the phase has been changed, replace companion flange.

If the runout value is still outside of the limit after companion flange has been replaced, possible cause will
be an assembly malfunction of drive pinion and electric controlled coupling, malfunctioning coupling bear-
ing, or malfunctioning of electric controlled coupling.

Inspection After Disassembly

INFOID:0000000003691303

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

• 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.

Limit

Companion flange runout

: Refer to

DLN-123, "Com-

panion Flange Runout"

Limit

Companion flange runout

: Refer to

DLN-123, "Com-

panion Flange Runout"

PDIA0439E

Revision: 2008 October

2009 Murano

ELECTRIC CONTROLLED COUPLING

DLN-105

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

• 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.

Revision: 2008 October

2009 Murano

DLN-106

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

DIFFERENTIAL ASSEMBLY

Exploded View

INFOID:0000000003691304

Filler plug

Gasket

Drain plug

Rear cover

Side oil seal

Side bearing adjusting shim

Side bearing

Drive gear

Differential case

10. Pinion mate thrust washer

11.

Pinion mate gear

12. Pinion mate shaft

13. Lock pin

14. Side gear thrust washer

15. Side gear

16. Drive pinion

17. Pinion rear bearing

18. Drive pinion adjusting shim

19. Collapsible spacer

20. Gear carrier

21. Pinion front bearing

22. Drive pinion nut

23. Center oil seal

24. AWD solenoid harness

25. Electric controlled coupling

26. Coupling cover

27. Reamer bolt

28. Connector bracket

29. Front oil seal

30. Companion flange

31. Companion flange lock nut

Oil seal lip

Screw hole

: Apply gear oil.

: Apply anti-corrosive oil.

: Apply Genuine Silicone RTV or equivalent. Refer to

: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Prod-

ucts and Sealants"

Refer to

GI-4, "Components"

for symbols not described above.

JSDIA1027GB

Revision: 2008 October

2009 Murano

DIFFERENTIAL ASSEMBLY

DLN-107

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

Disassembly

INFOID:0000000003412888

Remove side oil seals, using a suitable tool.

CAUTION:

Be careful not to damage gear carrier and rear cover.

Remove rear cover mounting bolts.

Set drifts [SST: KV40100610 (J-26089)] to the right and left side
bearing adjusting shims individually. Press differential case
assembly with side bearing to remove gear carrier assembly
and rear cover assembly.

CAUTION:

The pressure shall be as low as possible to remove gear
carrier assembly and rear cover assembly. The maximum
pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).
NOTE:
Differential case assembly, side bearings, and adjusting shims
are compressed and integrated in gear carrier and rear cover.

Remove drain plug and filler plug.

Remove side bearing adjusting shims and side bearing outer races.

CAUTION:

Mark the side bearing adjusting shims so that the original mounting positions (right/left) can be
identified later.

Remove drive gear mounting bolts and then remove drive gear
from differential case.

Remove side bearing inner races, using pullers and the drift
[SST: ST33052000 (

—

)].

PDG0216D

PDIA0065E

PDIA0446E

PDIA0459E

Revision: 2008 October

2009 Murano

DLN-108

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

Pull the lock pin out of pinion mate shaft, using the pin punch.

Remove pinion mate shaft, pinion mate gears, pinion mate
thrust washers, side gears, side gear thrust washers from differ-
ential case.

Assembly

INFOID:0000000003412889

Install new side gear thrust washers with the same thickness as
the ones installed prior to disassembly or reinstall the old ones
on the side gears.

Install side gears and side gear thrust washers into differential
case.

Align 2 pinion mate gears in diagonally opposite positions, then
rotate and install them into differential case after installing pinion
mate thrust washers to pinion mate gears.

PDIA0759J

SDIA0032J

SDIA0193J

SDIA0036J

Revision: 2008 October

2009 Murano

DIFFERENTIAL ASSEMBLY

DLN-109

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

Align the lock pin holes on differential case with shaft, and install
pinion mate shaft.

Measure side gear end play following the procedure below, and select the appropriate side gear thrust
washers.

Place differential case straight up so that side gear to be mea-
sured comes upward.

Using thickness gauges, measure the clearance between side
gear back and differential case at 3 different positions, while
rotating side gear. Average the 3 readings, and then decide the
clearance. (Measure the clearance of the other side as well.)

CAUTION:

To prevent side gear from tilting, insert thickness gauges
with the same thickness from both sides.

If the back clearance is outside the specification, use a thicker/
thinner side gear thrust washer to adjust.

CAUTION:

Select a side gear thrust washer for right and left individu-
ally.

SDIA0037J

PDIA0460E

Standard

Side gear back clearance

: Refer to

DLN-123, "Differ-

ential Side Gear Clear-
ance"

When the back clearance is large:

Use a thicker thrust washer.

When the back clearance is small:

Use a thinner thrust washer.

SDIA0583E

Revision: 2008 October

2009 Murano

DLN-110

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

Drive a lock pin into pinion mate shaft, using the pin punch.

CAUTION:

Never reuse lock pin.

Press side bearing inner races to differential case, using the drift
[SST: KV40105020 (

—

)].

CAUTION:

Never reuse side bearing inner races.

Apply locking sealant into the thread hole of drive gear.
Use Genuine Medium Strength Thread Locking Sealant or
equivalent. Refer to

GI-17, "Recommended Chemical Products

and Sealants"

CAUTION:

The drive gear back and threaded holes shall be cleaned
and decreased sufficiently.

Install drive gear to the differential case, and then tighten to the
specified torque.

10. Apply gear oil to side bearings, and install new side bearing

adjusting shims (2 pieces for one side) with the same thickness
as the ones installed prior to disassembly or re-install the old
ones, with side bearing outer race to differential case.
If side bearing adjusting shims have been already selected, use
them.

CAUTION:

Never reuse side bearing outer race.

11. Set the drifts [SST: KV40100610 (J-26089)] to the right and left

side bearing adjusting shims individually. Compress differential
case assembly and side bearing to install gear carrier assembly
to differential case assembly.

CAUTION:

• The drift shall be placed on the center of the adjusting

shims.

• The pressure shall be as low as possible to install differ-

ential assembly into gear carrier assembly. The maximum
pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).

• If the adjusting shims are installed by tapping, the gear

carrier may be damaged. Avoid tapping.

PDIA0759J

PDIA0052E

SPD554

PDIA0466E

PDIA0064E

Revision: 2008 October

2009 Murano

DIFFERENTIAL ASSEMBLY

DLN-111

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

12. Install dummy cover set, check and adjust drive gear runout, tooth contact, backlash, and total preload

torque. Refer to

DLN-118, "Adjustment"

13. Remove dummy cover set.

14. Apply liquid gasket to mating surface of rear cover. Overlap both

ends of the bead for at least 3 mm (0.12 in).
Use Genuine Silicone RTV or equivalent. Refer to

GI-17, "Rec-

ommended Chemical Products and Sealants"

CAUTION:

Remove old gasket adhering to the mounting surfaces.
Also remove any moisture, oil, or foreign material adhering
to the mounting surfaces.

15. Set the drifts [SST: KV40100610 (J-26089)] to the right and left

side bearing adjusting shims individually. Compress differential
case assembly and side bearing to install rear cover.

CAUTION:

• The drift shall be placed on the center of the adjusting

shims.

• The pressure shall be as low as possible to install the rear

cover. The maximum pressure shall be 10 kN (1 ton, 1.0
Imp ton).

• If rear cover is forced in by tapping, rear cover may be

damaged by adjusting shims. Avoid tapping.

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

17. Using the drift [SST: KV38100200 (J-26233)], drive side oil seals

until it becomes flush with the carrier end.

CAUTION:

• Never reuse oil seals.
• When installing, do not incline oil seals.
• Apply multi-purpose grease onto oil seal lips, and gear oil

onto the circumference of oil seal.

18. Check total preload torque. Refer to

DLN-118, "Adjustment"

Inspection After Disassembly

INFOID:0000000003691305

DRIVE GEAR AND DRIVE PINION

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

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.

PDIA0447E

PDIA0065E

PDIA0448E

Revision: 2008 October

2009 Murano

DLN-112

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

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.

Revision: 2008 October

2009 Murano

DRIVE PINION

DLN-113

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DLN

DRIVE PINION

Exploded View

INFOID:0000000003691307

Filler plug

Gasket

Drain plug

Rear cover

Side oil seal

Side bearing adjusting shim

Side bearing

Drive gear

Differential case

10. Pinion mate thrust washer

11.

Pinion mate gear

12. Pinion mate shaft

13. Lock pin

14. Side gear thrust washer

15. Side gear

16. Drive pinion

17. Pinion rear bearing

18. Drive pinion adjusting shim

19. Collapsible spacer

20. Gear carrier

21. Pinion front bearing

22. Drive pinion nut

23. Center oil seal

24. AWD solenoid harness

25. Electric controlled coupling

26. Coupling cover

27. Reamer bolt

28. Connector bracket

29. Front oil seal

30. Companion flange

31. Companion flange lock nut

Oil seal lip

Screw hole

: Apply gear oil.

: Apply anti-corrosive oil.

: Apply Genuine Silicone RTV or equivalent. Refer to

: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Prod-

ucts and Sealants"

Refer to

GI-4, "Components"

for symbols not described above.

JSDIA1027GB

Revision: 2008 October

2009 Murano

DLN-114

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DRIVE PINION

Disassembly

INFOID:0000000003412892

Remove electric controlled coupling assembly. Refer to

DLN-102, "Disassembly"

Remove differential case assembly. Refer to

DLN-107, "Disassembly"

Fit drive pinion socket (A) [SST: KV38108500 (

—

)] onto

drive pinion spline. Remove drive pinion nut, using the pinion nut
wrench (B) [SST: KV38108400 (

—

)].

Press drive pinion assembly out of gear carrier.

CAUTION:

Never drop drive pinion assembly.

Remove pinion front bearing inner race.

Remove collapsible spacer.

Remove pinion rear bearing inner race from drive pinion, using
puller and bearing puller.

Using a brass rod, tap pinion front bearing outer race evenly
from the 2 cutouts on gear carrier and remove pinion front bear-
ing outer race.

CAUTION:

Be careful not to damage gear carrier.

Using a brass rod, tap drive pinion adjusting shim evenly from
the 2 cutouts on gear carrier and remove drive pinion adjusting
shim and pinion rear bearing outer race.

CAUTION:

Be careful not to damage the gear carrier.

JSDIA0265ZZ

PDIA0445E

PDIA0179E

SDIA0564E

Revision: 2008 October

2009 Murano

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