Subaru 2009 IMPREZA, Service Manual

Page: 2144 / 3619

5MT-72
Front Differential Assembly
MANUAL TRANSMISSION AND DIFFERENTIAL
3. TOOTH CONTACT OF HYPOID GEAR
1) Adjust until correct teeth contact is obtained.
2) Check tooth contact, and perform the adjust-
ment as follows.
• Tooth contact
Check item: Tooth contact surface is slightly
shifted toward the toe side under a no-load con-
dition. (When driving, it moves towards the heel
side.)
• Face contact
Check item: Backlash is too large.
Contact pattern
Corrective action: Tighten the side retainer to move
the driven gear closer to the drive pinion shaft.
• Flank contact
Check item: Backlash is too small.
Contact pattern
Corrective action: Loosen the side retainer to move
the driven gear away from the drive pinion shaft.
• Toe contact (inside contact)
Check item: Teeth contact area is too small.
Contact pattern
Corrective action: Increase the thickness of drive
pinion shim and tighten the side retainer to move
the driven gear closer to the drive pinion shaft ac-
cording to the procedure for bringing drive pinion
shaft away from driven gear.
(A) Toe side
(B) Heel side
(A)
(B)
MT-01401
AT-00208
MT-01799
AT-00209
MT-01800
AT-00210
AT-00213