new clutch vibration
Posting Guru
Joined: Sep 2002
Posts: 2,420
Likes: 3
From: Langhorne, PA
I have never bought a new flywheel, but have removed and reused old flywheels, and I always let the machine shop turn them to remove glaze and straighten out the face. Maybe you should have let a shop put a dial on it.
It could be any part, the clutch disc, pressure plate, springs or cover.
When your foot is off the pedal everything is engaged, the clutch disk is resting on the flywheel, the pressure plate is pushing the clutch disc, and the springs and cover are all engaged and spinning.
Is the truck vibrating when the clutch pedal is held down, regardless of what gear the tranny box is in?
PS I hope you installed a brand new pinion bearing, i.e.the small bearing the end of the tranny input shaft rests in. I hope you had an alignment tool in the clutch as you tightened everything up, that is fairly important,. The alignment tool keeps the flywheel, clutch and plates all centered about the same axis.
It could be any part, the clutch disc, pressure plate, springs or cover.
When your foot is off the pedal everything is engaged, the clutch disk is resting on the flywheel, the pressure plate is pushing the clutch disc, and the springs and cover are all engaged and spinning.
Is the truck vibrating when the clutch pedal is held down, regardless of what gear the tranny box is in?
PS I hope you installed a brand new pinion bearing, i.e.the small bearing the end of the tranny input shaft rests in. I hope you had an alignment tool in the clutch as you tightened everything up, that is fairly important,. The alignment tool keeps the flywheel, clutch and plates all centered about the same axis.
Last edited by 924x2150; Jun 16, 2005 at 08:51 PM.
Posting Guru
Joined: Sep 2002
Posts: 2,420
Likes: 3
From: Langhorne, PA
Excuse me, I'm tired, I had a long day, this is a manual transmission right?
You mentioned that it had a vibration in "park", there is no "park" setting on a stick shift.
We need to know if the truck vibrates when the clutch pedal is held to the floor, if it is a stick shift. I doesn't matter what gear you are in, the flywheel is separated from the clutch when the pedal is down. The flywheel, however, is permanently bolted to the clutch cover. I hope you put all the original bolts back in the cover.
You mentioned that it had a vibration in "park", there is no "park" setting on a stick shift.
We need to know if the truck vibrates when the clutch pedal is held to the floor, if it is a stick shift. I doesn't matter what gear you are in, the flywheel is separated from the clutch when the pedal is down. The flywheel, however, is permanently bolted to the clutch cover. I hope you put all the original bolts back in the cover.
Posting Guru
Joined: Sep 2002
Posts: 2,420
Likes: 3
From: Langhorne, PA
Allright, then you may have a problem with the flywheel balance, or the way the clutch cover was bolted to the flywheel, If I recall the cover has at least two alignment pins that are supposed to keep the cover mounted correctly over the flywheel. If you take everything apart again, just take a very close look at the cover and the mounting hardware before you remove them, I would guess there is only a small chance there is something wrong with the cover, and I am leaning towards a warped or poor quality flywheel.
That is alot of work you did, I hope youcan fix it on the next try. Good luck
That is alot of work you did, I hope youcan fix it on the next try. Good luck
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From: Louisiana
LOL, sorry but that's what I was going to recommend. The 4.9L, 5.0L and the 5.8L all can use different imbalanced flywheels. Not sure about the 4.9L but the 5.0 and the 5.8L engines can use a 28oz or 50oz harmonic balancer and flywheel combination. This happened to me years ago on an '81 automatic. They sold me the wrong flexplate. I had just overhauled the engine and after pulling my hair for weeks trying to figure it out, thinking it was something I had done during overhaul.
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fairlaniac
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