Subaru IMPREZA 2002 Service Manual page 292

DRIVE PINION SHAFT ASSEMBLY
I
MANUAL TRANSMISSION AND DIFFERENTIAL
12) Install the thrust bearing and needle bearing.
Install the driven shaft assembly.
r-:--
B3M0082
13) Install the drive pinion collar, needle bearing,
adjusting washer No. 2, thrust bearing, adjusting
washer No. 1 and differential bevel gear sleeve in
that order.
NOTE:
Be careful because the spacer must be installed in
proper direction.
r -
-
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(A) Driven shaft
(B) Drive shaft
(C) Drive pinion collar
(D) Needle bearing (25
x
30 x 20)
(E) Washer No. 2 (25 x 36
x 4)
(F) Thrust bearing (25
x
37.5 x
3)
(G)
Washer No. 1 (25
x
36
x
t)
(H) Differential bevel gear sleeve
E: INSPECTION
Disassembled parts should be washed clean first
and then inspected carefully.
1) Bearings
Replace bearings in the following cases:
Bearings whose balls, outer races and inner rac-
es are broken or rusty.
Worn bearings
Bearings that fail to turn smoothly or make ab-
normal noise when turned after gear oil lubrication.
The ball bearing on the rear side of the drive pin-
ion shaft should be checked for smooth rotation be-
fore the drive pinion assembly is disassembled. In
this case, because a preload is working on the
bearing, its rotation feels like it is slightly dragging
unlike the other bearings.
B3M0038E
(A) Drive pinion shaft
(B) Ball bearing
Bearings having other defects
2) Bushing (each gear)
Replace the bushing in the following cases:
When the sliding surface is damaged or abnor-
mally worn.
When the inner wall is abnormally worn.
3) Gears
Replace gears with new ones if their tooth sur-
faces are broken, damaged, or excessively worn.
Correct or replace if the cone that contacts the
baulk ring is rough or damaged.
Correct or replace if the inner surface or end face
is damaged.
4) Baulk ring
Replace the ring in the following cases:
When the inner surface and end face are dam-
aged.
When the ring inner surface is abnormally or par-
tially worn down.
If the gap between the end faces of the ring and
the gear splined part is excessively small when the
ring is pressed against the cone.
Clearance (A):
0.5
-
1.0 mm (0.020
-
0.040 in)
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S3M0188A
MT-68