Subaru 2009 IMPREZA, Service Manual

Page: 2143 / 3619

5MT-71
Front Differential Assembly
MANUAL TRANSMISSION AND DIFFERENTIAL
3. TOOTH CONTACT OF HYPOID GEAR
Check tooth contact of hypoid gear as follows: Ap-
ply a thin uniform coat of red lead on both teeth sur-
faces on 3 or 4 teeth of the hypoid gear. Move the
hypoid gear back and forth by turning the transmis-
sion main shaft until a definite contact pattern is de-
veloped on the hypoid gear, and judge whether
face contact is correct. When the contact pattern is
not correct, adjust. <Ref. to 5MT-71, ADJUST-
MENT, Front Differential Assembly.>
• Tooth contact is correct.
F: ADJUSTMENT
1. BEVEL PINION GEAR BACKLASH
1) Disassemble the front differential assembly.
<Ref. to 5MT-67, DISASSEMBLY, Front Differen-
tial Assembly.>
2) Select a different washer from the table and in-
stall.
3) Adjust until the standard value is obtained.
Backlash:
Standard
0.13 — 0.18 mm (0.0051 — 0.0071 in)
2. HYPOID GEAR BACKLASH
Adjust the backlash by turning the side retainer in
the RH side case.
ST
18630AA010 WRENCH COMPL RETAINER
NOTE:
Each time side retainer rotates one tooth, backlash
changes by 0.05 mm (0.020 in).
(A) Toe
(B) Coast side
(C) Heel
(D) Drive side
MT-01402
(B) (D)
(C)
(A)
Washer
Part number Thickness mm (in)
803038021
0.925 — 0.950
(0.0364 — 0.0374)
803038022
0.975 — 1.000
(0.0384 — 0.0394)
803038023
1.025 — 1.050
(0.0404 — 0.0413)
MT-00176
ST
MT-00296
0.05mm(0.0020 in)