Subaru IMPREZA GD 2007 Series Manual page 2998

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14) Using the ST, install the snap ring.
ST 18672AA000 GUIDE CLIP
15) Inspect and adjust the clearance between the
snap ring and the washer. <Ref. to 6MT-93, IN-
SPECTION, Reverse Idler Gear Assembly.>
16) Install a new spring pin.
E: INSPECTION
Disassembled parts should be washed with water
first and then inspected carefully.
1) Bearing
Replace the bearings in the following cases.
• Bearing wear, rusting or damage
• If the bearing does not rotate smoothly or an ab-
normal noise is emitted when turning.
• When the bearing has other defects
2) Bushing (each gear)
Replace the bushing in following cases.
• When gear sliding surfaces are damaged or ex-
cessively worn.
3) Gear
Replace gears in the following cases.
• When gear teeth are damaged or excessively
worn.
• If the contact area of the baulk ring is damaged.
• If the inner face of the gear is worn.
4) Baulk ring, synchro cone
Replace the baulk ring and synchro cone in follow-
ing cases:
Baulk ring wear, rusting or damage
5) Shifting insert key
Replace the shifting insert key if deformed, exces-
sively worn or defective in any way.
Reverse Idler Gear Assembly
6) Check clearance between the snap ring and
washer.
Clearance specification:
ST
MT-00638
If the clearance is out of the specification, select a
snap ring from the following table and perform re-
placement.
After replacing the snap ring, inspect the clearance.
MT-00581
6MT-93
MANUAL TRANSMISSION AND DIFFERENTIAL
0.1 — 0.3 mm (0.0039 — 0.0118 in)
Snap ring
Part No.
031319000
805019030
805019010
MT-00639
Thickness mm (in)
1.50 (0.059)
1.60 (0.062)
1.72 (0.068)