Infiniti G37 Coupe. Manual - part 429

DLN-30

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200]

FRONT OIL SEAL

12. Remove front oil seal using the puller (A) [SST: KV381054S0 (J-

34286)].

INSTALLATION

1.

Apply multi-purpose grease to front oil seal lips.

2.

Install front oil seal using the drift (A) [SST: ST30720000 (J-
25405)] as shown in figure.

CAUTION:

• Never reuse oil seal.
• Never incline oil seal when installing.

3.

Align the matching mark (B) of drive pinion with the matching
mark (A) of companion flange (1), and then install the compan-
ion flange (1).

PDIA0980E

PDIA0752J

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FRONT OIL SEAL

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< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200]

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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.

Set a dial indicator (A) vertically to the tip of the drive pinion.

7.

Rotate drive pinion to check for runout.

• If the runout value is still outside of the limit after the phase

has been changed, possible causes are an assembly malfunc-
tion of drive pinion and pinion bearing and malfunction of pin-
ion bearing. Check for these items and repair if necessary.

8.

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.

9.

Install propeller shaft. Refer to 

DLN-14, "Exploded View"

.

10. 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.

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.

JSDIA0023ZZ

Limit

Drive pinion runout

: Refer to 

DLN-60, "Drive 

Pinion Runout"

.

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SDIA0822E

DLN-32

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200]

FRONT OIL SEAL

d.

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

11. Install drive shaft. Refer to 

RAX-10, "Exploded View"

.

12. Install rear wheel sensor. Refer to 

BRC-100, "Exploded View"

.

13. Install center muffler. Refer to 

EX-5, "Exploded View"

.

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

DLN-

26, "Refilling"

.

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

DLN-26, "Inspection"

.

Measurement “A”

: 326 – 328 mm (12.83 – 
12.91 in)

JSDIA0106ZZ

SIDE OIL SEAL

DLN-33

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200]

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SIDE OIL SEAL

Exploded View

INFOID:0000000001714217

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. Side gear thrust washer

15. Circular clip

16. Side gear

17. Lock pin

18. Pinion mate gear

19. Pinion mate thrust washer

20. Pinion mate shaft

21. Drive gear

22. Differential case

23. Bearing cap

24. Filler plug

25. Gasket

26. Rear cover

27. 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.

JPDID0129GB