Infiniti G37 Coupe. Manual — part 432
DLN-42
< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
DIFFERENTIAL ASSEMBLY
3.
Install side gears and thrust washers into differential case.
CAUTION:
Make sure that the circular clip is installed to side gears.
4.
Align 2 pinion mate gears in diagonally opposite positions, then
rotate and install them into differential case after installing thrust
washer to pinion mate gear.
5.
Align the lock pin holes on differential case with shaft, and install
pinion mate shaft.
6.
Measure side gear end play. If necessary, select the appropriate side gear thrust washers.
a.
Place differential case straight up so that side gear to be mea-
sured comes upward.
SDIA2025E
SDIA0195J
PDIA0460E
DIFFERENTIAL ASSEMBLY
DLN-43
< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
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b.
Using feeler gauge, measure the clearance between side gear
back and differential case at 3 different points, while rotating
side gear. Average the 3 readings, and then measure the clear-
ance of the other side as well.
CAUTION:
To prevent side gear from tilting, insert feeler gauges with
the same thickness from both sides.
c.
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.
7.
Drive a lock pin into pinion mate shaft, using a punch.
Make sure lock pin is flush with differential case.
CAUTION:
Never reuse lock pin.
8.
Align the matching mark of differential case with the mark of
drive gear, then place drive gear.
9.
Apply thread locking sealant into the thread hole of drive gear.
• Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to
CAUTION:
Clean and degrease drive gear back and threaded holes
sufficiently.
Standard
Side gear back clearance
: Refer to
When the back clearance
is large:
Use a thicker thrust wash-
er.
When the back clearance
is small:
Use a thinner thrust wash-
er.
PDIA0576E
SPD030
SDIA2593E
SDIA2594E
DLN-44
< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
DIFFERENTIAL ASSEMBLY
10. Install drive gear on the mounting bolts.
CAUTION:
• Tighten bolts in a crisscross fashion.
• After tightening the bolts to the specified torque, tighten
the bolts additionally by turning the bolts 31 to 36
degrees.
11. Press side bearing inner races to differential case, using the drift
(A) [SST: KV38100300 (J-25523)] and the base (B) [SST:
ST33061000 (J-8107-2)].
CAUTION:
Never reuse side bearing inner race.
12. Install differential case assembly with side bearing outer races
into gear carrier.
13. Measure side bearing preload. If necessary, select the appropri-
ate side bearing adjusting washers. Refer to
14. Insert selected left and right side bearing adjusting washers in
place between side bearings and gear carrier. Refer to
15. Align matching marks on bearing cap with that on gear carrier.
16. Install bearing caps and tighten bearing cap mounting bolts.
SDIA0247J
SPD353
SPD527
SPD558
SDIA1795E
DIFFERENTIAL ASSEMBLY
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< DISASSEMBLY AND ASSEMBLY >
[REAR FINAL DRIVE: R200]
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17. Using the drift [SST: KV38100200 (J-26233)], drive side oil seals
until it becomes flush with the case 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.
18. Check and adjust drive gear runout, tooth contact, drive gear to
drive pinion backlash, and total preload torque. Refer to
Recheck above items. Readjust the above description, if neces-
sary.
19. Apply sealant to mating surface of rear cover.
• Use Genuine Silicone RTV or equivalent. Refer to
"Recommended Chemical Products and Sealants"
.
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
20. Install rear cover on gear carrier and tighten mounting bolts.
21. 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.
Adjustment
INFOID:0000000001714228
TOTAL PRELOAD TORQUE
• Before inspection and adjustment, drain gear oil.
1.
Secure final drive assembly onto an attachment [SST: KV38100800 (J-25604-01)].
2.
Remove side flanges.
SPD560
PDIA0961E
SDIA0822E
Measurement “A”
: 326 – 328 mm (12.83 –
12.91 in)
JSDIA0106ZZ
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