clutch fork pivot ball height
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
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From: home
clutch fork pivot ball height
I'm in the process of installing a new clutch and flywheel. Using the formula from Centerforce to determine how tall the pivot ball needs to be. The answer I come up with is my ball is 0.060" too short. Will that 0.060" make that much of a difference or should I get an adjustable ball? Get a throwout bearing 0.060" longer? Or, leave it as is?
Mark
Mark
Team Owner
Joined: Apr 1999
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Right now it is .060 too short. In the future ware will increase that number as the plates, fingers, throw out face ware. I run the GM long pivot ball availiable at any dealer for $14.95 I don't like adjustables
GM long ball usually solves any issues but if you change flywheel thickness make sure to figure out if you should use 1.25 or 1.5 TO bearing.
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
Thanks for the replies. I also do not like the adjustable ball, but the scattershield already has the longer GM ball installed. I'll determine what length release bearing to get. I used the Centerforce measuring procedure to determine that the ball is too short. I "assume" the numbers given for the nominal flywheel deck height (0.0960') and ball distance to the engine block (4.750") are correct.
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
Installed the new flywheel and clutch today. With the long stud and the 1.25" long bearing that came with the clutch, the bearing is tight against the pressure plate fingers. Swapped to the short stud and now I have too much clearence. Tried another bearing that is 1.75" long with the short stud and it too, is tight. I guess my next options are to either try to find a 1.5" bearing or go to the adjustable stud.
Melting Slicks
Joined: Sep 2004
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