Subaru Impreza 2003 Service Manual page 2040

MANUAL TRANSMISSION AND DIFFERENTIAL
NOTE:
Always replace the inner race and outer race as a
set.
ST2
7) Install the hypoid driven gear to differential case.
Tightening torque:
69 N·m (7.0 kgf-m, 50.9 ft-lb)
2. SIDE RETAINER
1) Using the ST, install the oil seal.
ST 499797000 OIL SEAL INSTALLER
2) Install the bearing outer race to retainer on both
side.
3) Install the O-ring to retainer on both side.
NOTE:
Be careful not to damage the O-ring.
FRONT DIFFERENTIAL ASSEMBLY
ST1
MT-00670
MT-00660
ST
MT-00671
6MT-110
E: INSPECTION
Repair or replace the front differential in following
cases.
• Each gear is damaged, seized, or excessively
worn.
• Sliding surfaces of the differential case is dam-
aged, seized or excessively worn.
• Bearings and bearings part is damaged, rusted
or worn.
• Bearings that fail to turn smoothly or make ab-
normal noise when turned.
1. BEVEL PINION GEAR BACKLASH
Measure the bevel pinion gear backlash. If it is not
within specifications, install a suitable washer to
adjust it. <Ref. to 6MT-111, ADJUSTMENT, Front
Differential Assembly.>
NOTE:
• Be sure the pinion gear teeth contacts adjacent
gear teeth during measurement.
• Before measuring the backlash, rotate each gear
to get each part accustomed.
ST1 498247001 MAGNET BASE
ST2 498247100 DIAL GAUGE
Standard backlash:
0.13 — 0.18 mm (0.0051 — 0.0071 in)
ST2
2. HYPOID GEAR BACKLASH
Check the hypoid gear backlash. If it is not within
specifications, adjust it. <Ref. to 6MT-111, HY-
POID GEAR BACKLASH, Front Differential As-
sembly.>
3. TOOTH CONTACT OF HYPOID GEAR
1) Be sure the hypoid gear backlash is within spec-
ifications. If it is not within specifications, adjust it.
<Ref. to 6MT-111, HYPOID GEAR BACKLASH,
Front Differential Assembly.>
ST1
MT-00672