I've owned my car for about two years now, and I just noticed a problem, whenever giving it a little gas from a complete stop, and easing out on the clutch, the car shudders, like a trans mount is loose or something. The only way I can start moving from a stop without shuddering, is to really give it gas, and slip the clutch, or let the clutch up slowly with no gas from an idle, then give it gas once the pedal is up all the way. What the hell is causing this? It just started doing this after being stuck in stop-and go traffic for almost an hour, and now it does it all the time. Help!

 

No one?

 

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 splines

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 splines

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 splines

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
Here's some info I gleaned off the web when I had chatter. Id look at the possibilities that have to do with heat.
-Junder

 

Oh Gawd! That's a lotta crap to check. It is the stock clutch, and I haven't messed with it at all. I guess it's time to see what Carmax's extended warrantee will do for me. I want to drop in a Stage II clutch, cam, and gears, but I was planning on doing that later, as most of my current $$ is tied up elsewhere. Well thanks!

 

Well if it is the stocker & your planning on doing mods, your gonna need to upgrade the clutch & hydraulics anyway.
I have seen dampning springs go in the discs B-4, hard to say what it is without experencing it.
The only thing I might be concerned with is that it just started doing this?
How severe is the chatter/shudder?

 

It shakes pretty good, but only when revving the engine slightly as I'm slipping or engaging the clutch. Usually I'm rolling out, only between 600-900 rpm's. It does it either forward or in reverse, and it's severe enough to shake the entire car. I notice when it shakes, the passenger headrest shaking about 1"-2" I've been revving the engine to 1k-1.2k rpms, then easing out on the clutch to avoid it, or slowly letting out on the clutch without touching the gas.

 

Ya, a SPEC clutch is just what you want to fix the chatter problem.

 

On a really hot day, I scorched the clutch on my SS real bad and it started acting a bit like you are describing for the next two weeks. When I went into 5th instead of 3rd while at WOT+highRPM the clutch never enganged for several seconds before I realized what was happening. Car stunk for the rest of the day and vibrated whenever clutch friction was being applied. I think I warped/burned part of the clutch.

If your problem just so happened to have started after an aggressive driving experience you might be able to gently wear the surfaces back in again. Do real low power/low RPM clutch engagements especially when the car is warm for the next 300 miles. If no improvement take it in.

 

Cool. Yeah, I did pretty much the same thing you did, and burned the clutch a bit. I'll try what u suggexted. -Thanks

 

How could this be. HOw can pedal adjustment cure chatter