Subaru XT 1988 Service Manual page 408

2-10
CLUTCH
Diagnostic Diagram of Clutch Drags
Test (1)
I
Disengage the clutch and shift quickly from neutral to reverse in idling condition
I
Gear noise
I
No
Sufficient disengagement of clutch
I
Yes
Test (2)
1
Shift to reverse after 0.5 to 1.0 sec of clutch disengagement.
_I
r
l
No
Defective transmission or excessive
Gear noise
I
clutch drag torque
[Cause]
1.
Defective pilot bearing
2.
Excessive disc deflection
3.
Defective transmission
4. Defective clutch disc hub spline
Yes
Test (3)
I
Shift the gear N
-.
R several times during disengaging clutch as test (2)
1 +-
1
I
No
Stuck clutch disc
I
Gear noise
I
[Cause]
1. Clutch disc smeared by oil
2. Clutch disc smeared by rust
3.
Defective clutch disc hub spline
"
Yes
1
Clutch drags
[Cause]
1. Cracked clutch disc facing
2. Damaged or worn clutch cover
3. Malfunction of clutch release system
4. Insufficient clutch release amount
5. Excessive clutch pedal play
12