Subaru Legacy 2005 Service Manual page 2835

Symptom
5. Clutch grabs.
When starting the vehicle with the clutch
partially engaged, the clutch grabs sud-
denly and the vehicle jumps instead of
making a smooth start.
2. CLUTCH PEDAL
Insufficient pedal play
Insufficient clutch pedal free play
Excessively worn and damaged pedal shaft or bushing
3. DIAGNOSTIC DIAGRAM OF CLUTCH DRAG
Step
1 CHECK GEAR NOISE.
1) Start the engine.
2) Depress the clutch pedal at idle and quickly
shift from neutral to reverse.
2 CHECK GEAR NOISE.
Depress the clutch pedal at idle and shift from
neutral to reverse within 0.5 — 1.0 seconds.
3 CHECK GEAR NOISE.
1) Disengage the clutch at idle and shift from
neutral to reverse within 0.5 — 1.0 seconds.
2) With the clutch pedal depressed, shift from
neutral to reverse, reverse to neutral several
times.
General Diagnostic Table
Possible cause
(a) Grease or oil on facing
(b) Deteriorated cushioning spring
(c) Worn or rusted spline of clutch disc or
main shaft
(d) Deteriorated or broken damper spring Replace the clutch disc.
(e) Loose engine mounting
(f) Deteriorated diaphragm spring
Trouble
Adjust pedal free play.
Adjust pedal free play.
Replace the bushing or shaft with a new one.
Check
Is there any noise from the
transmission gear?
Is there any noise from the
transmission gear?
Is there any noise from the
transmission gear?
CL-45
CLUTCH SYSTEM
Corrective action
Replace the clutch disc.
Replace the clutch disc.
Take off rust and apply grease, or replace
clutch disc or main shaft.
Retighten or replace mounting.
Replace.
Corrective action
Yes
Go to step 2. Clutch is normal.
Go to step 3. Defective trans-
mission or exces-
sive clutch drag
torque. Inspect
pilot bearing,
clutch disc, trans-
mission and clutch
disc hub spline.
Defect in clutch Clutch and fly-
disengaging. wheel seizure.
Inspect the clutch Inspect the clutch
disc, clutch cover, disc and clutch
clutch release and disc hub spline.
clutch pedal free
play.
No