Clutch shudder
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New User
Joined: Dec 2002
Posts: 2
Likes: 0
From: Rome USA
Clutch shudder
I have massive shudder when engaging the clutch from a stop. Suspected weak pressure plate and replaced the clutch/press.plate/throwout brg. with a matched set from Zoom/Perfection. New parts didn't fix the shake, may even be worse.
Ideas for the cause or how to fix it?
Ideas for the cause or how to fix it?
Laughing Gas
Joined: Jul 1999
Posts: 1,047
Likes: 22
From: Lacey, WA
Clutch shudder
Hi,
Along with the pilot bearing question, did you have the flywheel re-surfaced? If not then I would imagine that this is the cause of the shudder. Do you recall seeing blue heat streaks on the flywheel surface? This is the usual cause of clutch shudder engagement. When I replaced my clutch awhile back I was amazed at the amount of heat damage on the flywheel. Blue streaks everywhere and over a "zillon" cracks.
When doing a "clutch job" it is always best to replace/re-surface the flywheel and pilot bearing along with all of the other parts you mentioned replacing. Sorry, this is not good news as you have to drop the tranny again. I know, as my first clutch job had results exactly as yours.
Hope this helps,
Lee
Along with the pilot bearing question, did you have the flywheel re-surfaced? If not then I would imagine that this is the cause of the shudder. Do you recall seeing blue heat streaks on the flywheel surface? This is the usual cause of clutch shudder engagement. When I replaced my clutch awhile back I was amazed at the amount of heat damage on the flywheel. Blue streaks everywhere and over a "zillon" cracks.
When doing a "clutch job" it is always best to replace/re-surface the flywheel and pilot bearing along with all of the other parts you mentioned replacing. Sorry, this is not good news as you have to drop the tranny again. I know, as my first clutch job had results exactly as yours.
Hope this helps,
Lee
Thread Starter
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New User
Joined: Dec 2002
Posts: 2
Likes: 0
From: Rome USA
Clutch shudder
Looks like its back under the truck - I turn and replace brake rotors with regularity, don't know why I didn't do the flywheel. I'll get the bearing while I'm there this time too.
Thanks and Happy Holidays!!
Thanks and Happy Holidays!!
Post Fiend
Joined: Apr 2002
Posts: 7,157
Likes: 1
From: Central Kali
Clutch shudder
If this is a new engine/bellhousing combination, you might want to check the bellhousing bore with a dial indicator to see if it is concentric to the crank. I had this problem once, almost drove me crazy. :-X12
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Clutch shudder
If the clutch linkage is mechanical (probably not - I think that stopped in '83), then it could be the body mounts. Mine were shot and the whole body was lifting off the frame when I'd press the clutch pedal - the whole truck would bounce when I'd let out slowly.
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