Lifetime Premium Member
Join Date: Jul 2005
Location: Rochester, New York
Re: clutch pivot ball height check
Man, this clutch is kickin’ my butt!
I bought a new GM Chevelle fork, a new clutch fork push rod kit, and a new repo z-bar from 4speedconversions. I also have 4speedconversions upper rod (to the pedal). Everything was bought for the Chevelle 1st design z-bar setup. After installing all these pieces; everything is looking great. Sure looks like about a 7 degree or so angle to the clutch fork in the at-rest position. Pedal feels right, and I can adjust end play for the pedal. Problem is; the new Hayes clutch wont disengage. (remember I have new Hayes flywheel too, and a new non-magnetic pilot bushing.)
So I check bellhousing concentricity and the bell is about .016” lower than needed. (Yup – my block was line bored). Ordered the .007” offset dowels – install and check – bingo. Now at about 006” total (under the .010” max). Parallel @ .001” after I removed all paint and stoned block to bell mating surfaces. I also removed paint off tranny mount side of bell with thinner and went over it with scotchbrite pad.
Installed drivetrain today (tranny easily entered pilot bushing) – fired it up and….. clutch still won’t disengage. I adjusted ALL the freeplay out to where the throwout is contacting the diaphragm fingers all the time. Still wont disengage. I can’t get close to entering reverse when idling. I managed to get it into first, but that was way too hard on the syncros.
Did I mention this clutch is kickin’ my butt!
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66 Malibu......back to life, now with a 427 BB & 4 speed