Subaru IMPREZA 2002 Service Manual page 90

I
DIFFERENTIALS
REAR DIFFERENTIAL
(5) Tighten the side bearing retainer bolts.
CAUTION:
Before tightening the two side bearing retainer
bolts, apply Lock Tite to bolt threads.
+Lock Tite:
THREE BOND 1 105 or equivalent
Tightening torque:
10.3 N.m (1.05 kgf-m, 7.6 ft-16)
S3M0173
(6) Measure the crown gear-to-drive pinion
backlash. Set the magnet base on differential
carrier. Align the contact point of dial gauge with
tooth face of crown gear, and move crown gear
while holding drive pinion still. Read the value in-
dicated on dial gauge.
0.10
-
0.20 mm (0.0039
-
0.0079 in)
Backlash:
G3M1047
(7) At the same time, measure the turning resis-
tance of drive pinion. Compared with the resis-
tance when differential case is not installed, if
the increase of the resistance is not within the
specified range, readjust side bearing retainer
shims.
Turning resistance increase:
2 . 9 - l 0 . 8 N ( 0 . 3 - l 1 . 1 kgf,O.7-2.4Ib)
15) Recheck the crown gear-to-pinion backlash.
Backlash:
0.10
-
0.20 mm (0.0039
-
0.0079 in)
-
G3M1047
16) Check the crown uear runout on its back sur-
face, and make sure pinion and crown gear rotates
smooth I y
.
Limit of runout:
Less than 0.05 mm (0.0020 in)
1 1
4
S3M0525
17) Checking and adjusting the tooth contact of
crown gear:
(1) Apply an even coat of red lead on both sides
of three or four teeth on the the crown gear.
Check the contact pattern after rotating the
crown gear several revolutions back and forth
until a definite contact pattern appears on the
crown gear.
(2) When the contact pattern is incorrect, read-
just according to the instructions given in
"TOOTH CONTACT PATTERN".
NOTE:
Be sure to wipe off red lead completely after adjust-
ment is completed.
DI-30