Infiniti G37 Coupe. Manual - part 440

 

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Infiniti G37 Coupe. Manual - part 440

 

 

DLN-74

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

FRONT OIL SEAL

4.

Apply anti-corrosion oil to the thread and seat of new drive pin-
ion lock nut, and temporarily tighten drive pinion lock nut to drive
pinion.

CAUTION:

Never reuse drive pinion lock nut.

5.

Tighten drive pinion lock nut within the limits of specified torque
so as to keep the pinion bearing preload within a standard val-
ues.

CAUTION:

• Adjust to the lower limit of the drive pinion lock nut tight-

ening torque first.

• If the preload torque exceeds the specified value, replace

collapsible spacer and tighten it again to adjust. Never
loosen drive pinion lock nut to adjust the preload torque.

6.

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

7.

Rotate the companion flange to check for runout.

8.

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

9.

Rotate the companion flange to check for runout.

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

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

°

 step,

and search for the position where the runout is the minimum.

b.

If the runout value is still outside of the limit after the phase has been changed, possible causes are be an
assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.

c.

If the runout value is still outside of the limit after the check and repair, replace companion flange.

11. Make a stamping for identification of front oil seal replacement frequency. Refer to “Identification stamp of

replacement frequency of front oil seal”.

CAUTION:

Make a stamping after replacing front oil seal.

12. Install propeller shaft. Refer to 

DLN-7, "Exploded View"

.

A: Preload gauge [SST: ST3127S000 (J-25765-A)]

Total preload torque

: A value that add 0.1– 0.4 
N·m (0.01 – 0.04 kg-m) to 
the measured value when 
removing.

PDIA1007E

Limit

Companion flange runout

: Refer to 

DLN-132, "Com-

panion flange Runout (M/T 
Models)"

.

Limit

Companion flange runout

: Refer to 

DLN-132, "Com-

panion flange Runout (M/T 
Models)"

.

JSDIA0116ZZ

FRONT OIL SEAL

DLN-75

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

C

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F

G

H

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J

K

L

M

A

B

DLN

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P

13. Install side flange with the following procedure.

a.

Attach the protector [SST: KV38107900 (J-39352)] to side oil
seal.

b.

After the side flange is inserted and the serrated part of side
gear has engaged the serrated part of flange, remove the pro-
tector.

c.

Put a suitable drift on the center of side flange, then drive it until sound changes.
NOTE:
When installation is completed, driving sound of the side flange turns into a sound that seems to affect the
whole final drive.

d.

Confirm that the dimension of the side flange (1) installation
(Measurement A) in the figure comes into the following.

14. Install drive shaft. Refer to 

RAX-10, "Exploded View"

.

15. Install rear wheel sensor. Refer to 

BRC-100, "Exploded View"

.

16. Install center muffler. Refer to 

EX-5, "Exploded View"

.

17. Refill gear oil to the final drive and check oil level. Refer to 

DLN-

69, "Refilling"

.

18. Check the final drive for oil leakage. Refer to 

DLN-69, "Inspection"

.

A/T

SDIA0822E

Measurement “A”

: 326 – 328 mm (12.83 – 
12.91 in)

JSDIA0109ZZ

DLN-76

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

FRONT OIL SEAL

A/T : Exploded View

INFOID:0000000001714262

1.

Drive pinion lock nut

2.

Companion flange

3.

Front oil seal

4.

Pinion front bearing

5.

Gear carrier

6.

Side oil seal

7.

Side flange

8.

Collapsible spacer

9.

Pinion rear bearing

10. Pinion height adjusting washer

11.

Drive pinion

12. Side bearing adjusting washer

13. Side bearing

14. Drive gear

15. Differential case B

16. Side gear thrust washer

17. Circular clip

18. Side gear

19. Pinion mate shaft

20. Pinion mate thrust washer

21. Pinion mate gear

22. Viscous coupling

23. Differential case A

24. Bearing cap

25. Filler plug

26. Gasket

27. Rear cover

28. Drain plug

A.

Oil seal lip

B.

Screw hole

C.

After tightening the bolts to the spec-
ified torque, tighten the bolts addi-
tionally by turning the bolts 31 to 36 
degrees.

:

Apply gear oil.

:

Apply anti-corrosion oil.

:

Apply Genuine Silicone RTV or equivalent. Refer to 

GI-15, "Recommended Chemical Products and Sealants"

.

:

Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to 

GI-15, "Recommended Chemical Products 

and Sealants"

.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

JSDIA0045GB

FRONT OIL SEAL

DLN-77

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

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DLN

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A/T : Removal and Installation

INFOID:0000000001714263

REMOVAL

CAUTION:

Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine
replacement for collapsible spacer when replacing front oil seal. Refer to “Identification stamp of
replacement frequency of front oil seal”. If collapsible spacer replacement is necessary, remove final
drive assembly and disassemble it to replace front oil seal and collapsible spacer. Refer to 

DLN-89, "A/

T : Removal and Installation"

 and 

DLN-104, "A/T : Disassembly"

.

NOTE:
The reuse of collapsible spacer is prohibited in principle. However, it is reusable on a one-time basis
only in cases when replacing front oil seal.

Identification stamp of replacement frequency of front oil seal

• The diagonally shaded area in the figure shows stamping point for

replacement frequency of front oil seal.

• The following table shows if collapsible spacer replacement is

needed before replacing front oil seal.
When collapsible spacer replacement is required, disassemble
final drive assembly to replace collapsible spacer and front oil seal.
Refer to 

DLN-104, "A/T : Disassembly"

.

CAUTION:

Make a stamping after replacing front oil seal.

• After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in

order to identify replacement frequency.

CAUTION:

Make a stamping from left to right.

1.

Drain gear oil. Refer to 

DLN-69, "Draining"

.

2.

Make a judgment if a collapsible spacer replacement is required.

3.

Remove center muffler with a power tool. Refer to 

EX-5, "Exploded View"

.

4.

Remove rear wheel sensor. Refer to 

BRC-100, "Exploded View"

.

5.

Remove drive shaft from final drive. Then suspend it by wire, etc. Refer to 

RAX-10, "Exploded View"

.

Stamp

collapsible spacer replacement

No stamp

Not required

“0” or “0” on the far right of stamp

Required

“01” or “1” on the far right of stamp

Not required

JSDIA0104ZZ

Stamp before stamping

Stamping on the far right

Stamping

No stamp

0

0

“0”
(Front oil seal was replaced once.)

1

01

“01”
(Collapsible spacer and front oil seal were replaced last time.)

0

010

“0” is on the far right.
(Only front oil seal was replaced last time.)

1

...01

“1” is on the far right.
(Collapsible spacer and front oil seal were replaced last time.)

0

...010

 

 

 

 

 

 

 

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