Clutch fork and pivot ball adjustment
Thread Starter
Pro
Joined: Feb 2005
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From: Frisco TX
Clutch fork and pivot ball adjustment
This may be a stupid question but when the tranny is in and it's all said and done with, is the pivot ball backed out so that the end that takes an allen wrench is a quarter inch or so further out than the bellhousing?
It's a stock 4 speed setup from a '76 if that matters.
It's a stock 4 speed setup from a '76 if that matters.
Last edited by TXredc3; Feb 6, 2009 at 11:55 PM.
Pro
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From: wilmington nc
That don"t sound right, the transmission covers part of it, an would not seat against the bellhousing correctly if it was sticking out a 1/4 inch. Did you recently install a new clutch an having trouble adjusting it?
Thread Starter
Pro
Joined: Feb 2005
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From: Frisco TX
I recently installed a crate engine and mated the tranny to it. When driving, the the clutch pedal would rattle bad. Others said the throwout bearing was touching the fingers of the pressure plate. I took the tranny back out and noticed that the spring(?) on the fork (metal pieces that hold the pivot ball) was bent and was causing the fork to slip off the ball. The fork was kind of crooked in the bell housing. That's when I came up with the thought that maybe the pivot ball is supposed to be back off to hold the fork tight against the bell housing. Right now with the pivot ball flush against the outside of the housing the fork is loose in there.
Thread Starter
Pro
Joined: Feb 2005
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From: Frisco TX
You're exactly right. There's no way to mate the tranny to the housing if the pivot ball is sticking out. So you answered my question. However, this leads me to another question. Is the fork supposed to be loose on the pivot ball before putting everything (tranny, linkage, etc) and all. I have the housing and fork on my bench. The fork easily slides onto the pivot ball and there's a lot of play in it. Shouldn't it be a tight fit?
Team Owner
Joined: Apr 1999
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
the fork should be a tight clip fit. Kind of a PITA to put on sometimes.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Thread Starter
Pro
Joined: Feb 2005
Posts: 627
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From: Frisco TX
the fork should be a tight clip fit. Kind of a PITA to put on sometimes.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Pro
Joined: Dec 2006
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From: wilmington nc
(Kind of) is a under statement, that things a royal pita to get on without bending the spring clips. A dab off grease helps on the clutch pivot ball, doesen"t make it any easyier to get on 
but helps with wear. The fork is avalable at your local chevy dealer.
but helps with wear. The fork is avalable at your local chevy dealer.
Drifting
Joined: Sep 1999
Posts: 1,970
Likes: 91
the fork should be a tight clip fit. Kind of a PITA to put on sometimes.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Depending on the pressure plate type. Like mine is multi fingers. You want to end up with with a tiny gap between the throw out bearing and the fingers. Some bell housings have an inspection window to measure the gap.
Didn't know you could get just the clip. Hows your riveting skills? I would bite the bullet and get the whole fork. May or may not have anything to do with this, but I also notice zip sell the ball stud. It will fit that rather wide span of years, and it may function correctly, but they are different length studs. I was not able to use the longer length stud in my 70. I don't think anyone sells the shorter one
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Pro
Joined: Dec 2006
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From: wilmington nc
Dennis is correct about the pivot ball, on my 74 there are 3 different pivot ***** in different lengths. Make darn sure if you replace the ball that it"s the exact length as your old one! Another gm dealer item.
Burning Brakes
Joined: Apr 2007
Posts: 1,028
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From: SOUTH ELGIN IL
It's not tight at all. I tried to beat/bend it to get a tight fit and it ended up getting better. Still not where it should be though. I think I'll just order a new clip from Zip for 6.50. I want to get this right and not have to pull the tranny again. Thanks for your help.
