Subaru IMPREZA GD 2007 Series Manual page 3009

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MANUAL TRANSMISSION AND DIFFERENTIAL
2) Attach the bearing outer race to the differential
side retainers on both sides.
3) Install O-rings to the differential side differential
side retainers on both sides.
NOTE:
Be careful not to damage the O-ring.
E: INSPECTION
Repair or replace the differential in the following
cases:
• Damage, seizure, or excessively wear of each
gear.
• Differential case sliding surface damage, seizure
or excessive wear.
• Bearing and bearing section damage, rusting or
wear
• If the bearing does not rotate smoothly or an ab-
normal noise is emitted when turning.
1. HYPOID GEAR BACKLASH
Inspect the hypoid gear backlash. Adjust if out of
standard. <Ref. to 6MT-104, HYPOID GEAR
BACKLASH, ADJUSTMENT, Front Differential As-
sembly.>
2. TOOTH CONTACT OF HYPOID GEAR
1) Check that the hypoid gear backlash is within the
standard value. Adjust if out of standard. <Ref. to
6MT-104, HYPOID GEAR BACKLASH, ADJUST-
MENT, Front Differential Assembly.>
2) Apply a thin uniform coat of red lead on the sur-
faces of 3 or 4 hypoid driven gear teeth.
3) Attach the drive pinion shaft assembly, and affix
with 5 bolts.
NOTE:
Use old gaskets and washers to prevent the mating
surfaces of the housing from becoming damaged.
Tightening torque:
50 N·m (5.1 kgf-m, 36.9 ft-lb)
4) Turn the drive pinion shaft to the left and right for
several turns.
Front Differential Assembly
5) Remove the drive pinion shaft assembly, and in-
spect the mating condition of the teeth. If tooth con-
tact is not correct, perform adjustment. <Ref. to
6MT-97, ADJUSTMENT, Drive Pinion Shaft As-
sembly.>
• Correct tooth contact
NOTE:
In a no load condition, the tooth contact from the
center to the toe side is 50-60% (While driving, the
tooth contact will shift towards the heel side).
F: ADJUSTMENT
1. HYPOID GEAR BACKLASH
1) Attach the RH and LH differential side retainers.
ST1 18630AA010 WRENCH COMPL RETAIN-
ST2 18630AA000 WRENCH ASSY (LH side)
NOTE:
Screw in the RH differential side retainer a little fur-
ther than the LH side.
2) Attach the drive pinion shaft assembly, and affix
with 5 bolts.
NOTE:
Use old gaskets and washers to prevent the mating
surfaces of the housing from becoming damaged.
Tightening torque:
MT-00652
50 N·m (5.1 kgf-m, 36.9 ft-lb)
3) Using the ST, loosen the differential side retainer
RH, and twist in the differential side retainer LH un-
til the hypoid driven gear just contacts the drive pin-
ion.
ST1 18630AA010 WRENCH COMPL RETAIN-
ST2 18630AA000 WRENCH ASSY (LH side)
6MT-104
(B)
(A) Toe side
(B) Heel side
ER (RH side)
ER (RH side)
(A)
MT-01401