Infiniti M45 (Y34). Manual — part 728
REAR FINAL DRIVE ASSEMBLY
RFD-25
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RFD
TOOTH CONTACT
Checking gear tooth contact pattern is necessary to verify correct relationship between drive gear and drive
pinion.
Hypoid gears which are not positioned in proper arrangement may be noisy and/or have a short life. Check
gear tooth contact pattern to obtain the best contact for low noise and long life.
1.
Thoroughly clean drive gear and drive pinion teeth.
2.
Lightly apply a mixture of powdered ferric oxide and oil or the
equivalent. Apply it to 3 or 4 teeth of drive gear drive side.
3.
Hold companion flange steady by hand and rotate the drive gear
in both directions.
SPD357
SDIA0813E
SDIA1910E
RFD-26
REAR FINAL DRIVE ASSEMBLY
ASSEMBLY OF DIFFERENTIAL CASE ASSEMBLY
1.
Install pinion mate shaft lock pin with a punch.
Make sure lock pin is flush with case.
2.
Place differential case on drive gear.
3.
Apply genuine medium strength locking sealant or equivalent.
Refer to
GI-46, "RECOMMENDED CHEMICAL PRODUCTS
to drive gear bolts, and install them.
●
Tighten bolts in a criss-cross fashion.
●
After tightening the bolt to the specified torque, turn the bolt
31 to 36 more degrees.
4.
Press-fit side bearing inner race on differential case with Tool.
SPD030
SPD554
Tool number
: A KV38100300 (J25523)
: B ST33061000 (J18107-2)
SPD353
REAR FINAL DRIVE ASSEMBLY
RFD-27
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RFD
INSTALLATION OF DRIVE PINION ASSEMBLY
1.
Press-fit front and rear bearing outer races with Tools.
2.
Select pinion height adjusting washer. Refer to
RFD-32, "AVAILABLE PINION HEIGHT ADJUSTING
3.
Install selected pinion height adjusting washer in drive pinion.
Using press and Tool, press-fit pinion rear bearing inner race
into it.
4.
Apply multi-purpose grease to pinion rear bearing inner race
and pinion front bearing inner race.
Tool number
: A Suitable tool
: B ST30611000 (J25742-1)
: C ST30613000 (J25742-3)
SPD992
Tool number
: ST30901000 ( – )
SPD377
PDIA0243E
RFD-28
REAR FINAL DRIVE ASSEMBLY
5.
Set drive pinion assembly (as shown in figure) in differential car-
rier and install drive pinion, with press and suitable tool.
Stop when drive pinion touches bearing.
6.
Install front oil seal with Tool.Refer to
RFD-7, "Removal and Installation"
7.
Install companion flange, and tighten pinion nut to minimum.
Ascertain that threaded portion of drive pinion and drive pinion
nut are free from oil or grease.
CAUTION:
The drive pinion nut is not reusable. Never reuse drive pin-
ion nut.
8.
Tighten the drive pinion nut by very small degrees until the spec-
ified preload in achieved, when checking the preload, turn drive
pinion in both directions several times.
●
If pinion bearing preload is too small, tighten the Drive pinion nut more.
●
If pinion bearing preload is too great, replace pinion bearing adjusting spacer.
INSTALLATION OF DIFFERENTIAL CASE ASSEMBLY
1.
Select side bearing adjusting washer.
Refer to
RFD-32, "SIDE BEARING ADJUSTING WASHERS"
2.
Install differential case assembly with side bearing outer races
into gear carrier.
SPD896
Tool number
: ST30720000 (J25405)
Tool number
: KV40104000 ( – )
SDIA1011E
Tool number
: ST3127S000 (See J25765-A)
Pinion bearing preload
: 2.65 - 3.23 N·m (0.27 - 0.32 kg-m, 24 - 28 in-lb)
SDIA1007E
SPD919
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