Clutch Trouble Diagnosis - Clutch Chatters and Grabs
The Best of Both Worlds - In One Clutch Line!
The following information is provided to assist you in recognition of the problem based on your clutch performance symptoms, correct diagnostics eliminates solving problem(s) that you may or may not have:
Clutch Chatters and Grabs:
1. Improper pedal adjustment
2. Improperly adjusted cover assembly
3. Bent or warped clutch cover
4. Worn pilot bearing or bushing
5. Dry or poorly lubricated pilot bearing
6. Dust, grease, oil or foreign matter in clutch
7. Gummy, glazed or worn clutch facings
8. Unequal spring pressure
9. Release levers binding
10. High spot on pressure plate
11. Flywheel not resurfaced at installation
12. Insufficient cushion in sprints or stamping of clutch plate
13. Broken, cracked, grooved or warped pressure plate
14. Heat flattened cushion springs
15. Flexible center or hub springs broken, weak or worn
16. Bent clutch plate due to installation error
17. Burrs on clutch plate spline's
18. Bent main drive gear
19. Misalignment of clutch and transmission
20. Bell housing misalignment
21. Hill holder unit incorrectly adjusted
22. Loose or worn universal joints
23. Loose U-joint companion flange
24. Propeller shaft and U-joints misaligned
25. Excessive end play in rear spring shackles
26. Excessive backlash in U-joints or rear axle
27. Loose bell housing bolts
28. Loose or worn axle shaft spline's
29. Loose flywheel to crankshaft bolts
30. Loose rear spring saddles
31. Loose rear spring U-bolts
32. Loose or worn engine and transmission mountings
33. Worn clutch fork
34. Worn throwout bearing
35. Throwout bearing carrier binding or cocked on sleeve
36. Heat-set diaphragm spring
37. Weak retractor springs used on diaphragm spring assemblies
38. Burrs on main drive gear spline's
39. Dirt, burrs or nicks between flywheel and crankshaft flange
40. Worn torque shaft bushings
41. Loose motor support rods
42. Wrong type of facing used