Subaru Impreza 2003 Service Manual page 2041

2) Apply a uniform thin coat of red lead on both
tooth surfaces of three or four teeth of the hypoid
driven gear.
3) Install the drive pinion shaft assembly, and then
secure with four bolts.
NOTE:
Use the old gasket and washer to prevent the mat-
ing surface of housing from damaging.
Tightening torque:
50 N·m (5.0 kgf-m, 36.9 ft-lb)
4) Rotate the drive pinion shaft to right and left for
several times.
5) Remove the drive pinion shaft assembly, and
then check tooth contact. If tooth contact is inaccu-
rate, adjust it. <Ref. to 6MT-102, ADJUSTMENT,
Drive Pinion Shaft Assembly.>
• Correct tooth contact.
NOTE:
Under no load, tooth contacts 50—60% from center
to toe side (tooth contact shifts to heel side when
driving).
(B)
(A) Toe side
(B) Heel side
FRONT DIFFERENTIAL ASSEMBLY
MT-00652
(A)
AT-00207
6MT-111
MANUAL TRANSMISSION AND DIFFERENTIAL
F: ADJUSTMENT
1. BEVEL PINION GEAR BACKLASH
1) Measure the bevel pinion gear backlash. <Ref.
to 6MT-110, BEVEL PINION GEAR BACKLASH,
INSPECTION, Front Differential Assembly.>
2) Disassemble the differential case. <Ref. to 6MT-
107, DIFFERENTIAL CASE, DISASSEMBLY,
Front Differential Assembly.>
3) Select a washer from the following table, and
then assemble the differential case. <Ref. to 6MT-
109, DIFFERENTIAL CASE, ASSEMBLY, Front
Differential Assembly.>
(D)
(A)
(A) Pinion shaft
(B) Bevel pinion gear
(C) Bevel gear
(D) Washer
NOTE:
If the backlash is excessive, select a thicker shim. If
the backlash is insufficient, select a thinner new
shim.
Washer
Part No.
803038021
803038022
803038023
2. HYPOID GEAR BACKLASH
1) Install the right and left side retainer.
ST1 499787000 WRENCH ASSY (RIGHT
SIDE)
ST2 18630AA000 WRENCH ASSY (LEFT SIDE)
NOTE:
Screw in the right side retainer a bit further than left
side.
2) Install the drive pinion shaft assembly, and then
secure with four bolts.
(B)
(C)
(D)
(C)
(B)
MT-00662
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)