Symptoms

Probable Cause

Possible remedy

A. Clutch does not release.

  1. Excessive lost motion in clutch 

     pedal travel.

  2. Foreign matter on clutch disc facings:

     oil, grease, dirt.

  3. Improper or bent clutch disc.

     Or installed backwards.

  4. Disc binds on clutch shaft.

  5. Transmission not properly aligned 

     with clutch housing.

  6. Pilot bushing jam onto clutch shaft.

  7. Pressure play  or improper release

     match for disc thickness.

  1. Adjust clutch linkage free play.

  2. Eliminate entry of foreign matter.

     Clean or replace affected members.

  3. Replace with correct part.

     Install carefully.

  4. Assure free, snug, sliding motion

     of disc on clutch shaft splines.

  5. Clean joining surfaces.

     Draw units up squarely before locking

     fasteners or other mountings,

     heavy accessories.

  6. Remove burrs,  nicks on  clutch shaft.

     Test bushing's free-turningsupport

     before installing transmission.

     Carefully lubricate recess infront of

     bushing or pilot bearing.

  7. Replace plate or plate and disc

     with factory matched assembly.

B. Clutch slips when fully engaged.

  8. Lack of free play at clutch pedal 

     or linkage.

  9. Worn facings on clutch disc

 10. Weak or broken springs in pressure plate,

     or plate and/or flywheel scored.

 11. Clutch disc broken at hub

 12. Binding pressure plate release fingers

     do not return. See 2 above.

  8. Adjust to insure complete return of

     pressure plate release imgers.

  9. Replace disc

 10. Replace plate and/or flywheel.

     Or machine flyweel surface.

 11. Replace disc

 12. Free release fingers

C. Clutch chatter

 See 2, above

 13. Clutch disc facings glazed or worn

 14. Improper pressure plate release finger

     adjustment or weak springs

 15. Clutch disc bent

 16. Loose or worn universal joint or

     joint flange in driveline.

 17. Transmission clutch shaft splines worn.

      See 4, above

 13. Replace or reline disc

 14. Replace or rebuild and adjust plate.

 15. Replace disc

 16. Tighten or replace as necessary

 17. Replace shaft

D. Clutch grabs

 See 2,3,4,5,10,13,14. above

 18. clutch pedal or pedal linkage action binding

 19. Engine mountings loose or worn

 20. Brakes drag

 18. Free and lubricate linkage

 19. Tighten or replace as necessary

 20. Adjust brakes or correct as necessary

E. Clutch pedal too hard

 21. Improper pedal return spring.

 22. Improper adjustment of pedal return

     over-center spring

 23. Binding release bearing sleeve

 24. Worn clutch shaft bearing

     (front of transmission)

 25. Dry or binding clutch linkage

 26. pedal interference with floormat

     or foot board

 21. Replace spring

 22. Adjust spring linkage

 23. Free sleeve lubricate lightly with

     heat-resistant grease

 24. Replace bearing. Assure tight

     bearing seal in transmission housing

 25. Free linkage and lubricate

 26. Cut away as necessary.

 Guard extended hoin.

F. Clutch rattle

 27. Weak or broken release lever

     anti-ratio springs

 28. Worn splines on clutch shaft

     and/or clutch disc hub.

 29. Dry or worn release bearing

 30. Improper pedal free play adjustment

 31. Excessive backlash in transmission

     or drive shaft

 27. Replace spring or pressure plate

 28. Replace as necessary.

 29. Lubricate or replace

 30. Adjust free play

 31. Correct as necessary