Subaru Impreza 2003 Service Manual page 1917

F: ADJUSTMENT
1. BEVEL PINION GEAR BACKLASH
1) Disassemble the front differential. <Ref. to 5MT-
104, REMOVAL, Front Differential Assembly.>
2) Select a differential washer from the table and
install.
Washer
Part No.
803038021
803038022
803038023
3) Adjust until the specified value is obtained.
Standard backlash:
0.13 — 0.18 mm (0.0051 — 0.0071 in)
2. HYPOID GEAR BACKLASH
Adjust backlash by turning the holder in right side
case.
ST 499787000 WRENCH ASSY
ST
NOTE:
Each time holder rotates one tooth, backlash
changes by 0.05 mm (0.020 in).
FRONT DIFFERENTIAL ASSEMBLY
Thickness mm (in)
0.925 — 0.950
(0.0364 — 0.0374)
0.975 — 1.000
(0.0384 — 0.0394)
1.025 — 1.050
(0.0404 — 0.0413)
MT-00176
0.05mm(0.0020 in)
MT-00296
5MT-109
MANUAL TRANSMISSION AND DIFFERENTIAL
3. TOOTH CONTACT OF HYPOID GEAR
1) Adjust until the tooth contact is correct.
2) Check and adjust the tooth contact with follow-
ing.
• Tooth contact
Checking item:Tooth contact pattern is slightly
shifted toward to toe side under no-load
rotation. [When loaded, contact pattern moves
toward heel.]
(B)
(A) Toe side
(B) Heel side
• Face contact
Checking item: Backlash is too large.
Contact pattern
Corrective action: Reduce thickness of drive pinion
shim in order to bring drive pinion close to driven
gear.
(A)
AT-00207
AT-00208
AT-00212