Subaru 1600 Service Manual page 289

Test (I)
Test (2)
Test (3)
MANUAL TRANSMISSION AND DIFFERENTIAL
Diagnostic Diagram of Clutch Drags
I
Disengage the clutch and shift quickly from neutral to reverse in idling condition
I
I
Gear noise
:I-__
N .....
0-l
Sufficient disengagement of clutch
I
Yes
I
Shift to reverse after O.S to 1.0 sec of clutch disengagement.
I
I
Gear noise
JI-__
N ....
0-t
Defective transmission or
excessive clutch drag torque
[Cause]
1. Defective pilot bearing
2.
Excessive disc deflection
3. Defective transmission
4. Defective clutch disc hub spline
Yes
Shift the gear
N :;:! R
several times during disengaging
clutch as test (2)
I
I
No.-------~
Gear noise
11-----+
Sticked clutch disc
I
[Cause]
1. Clutch disc smeared by oil
2.
Clutcti disc smeared by rust
3.
Defective clutch disc hub spline
Yes
I
Clutch drags
I
[Cause]
1. Cracked clutch disc facing
2. Damaged or worn clutch cover
3. Malfunction of clutch release system
4. Insufficient clutch release amount
S. Excessive clutch pedal play
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