tight clutch pedal
- Thread starter cny78
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Do you have the right throw out bearing matched to the pressure plate fingers? It sounds like you might have a long throw out bearing with long pressure plate fingers. Another issue could be a incorrect lower rod if you replaced that too.
Did not know there were 2 sizes bearings. It's a Perfection Clutch kit stock replacement for my 78 malibu, 400 sbc, 11 " disc. Do not want to deal with pulling that trans out to measure the bearing. Will try to find out which bearing I have. Your reply does make sense, thanks. I replaced the entire linkage system; matching it with the what was in the car. Nothing different. Do you know why there are 2 different bearings used?
Just take the lower rod off, and see if you can wiggle the fork and throw out bearing. If it doesn't move at all, you probably have the long bearing. You should be able to see something in the...... wait for it..... fork hole!
The bearing lenth is related to the fingers of the plate but if it is a match set then it should be OK. Now since you said you're running a 11" clutch, what bellhousing are you using? the 11" housing is hard to find & a one year only ('78) item generally used with El Caminos & Caballeros with 350's. That bellhousing will be p/n 464697 & will have the offset ball stud like the 462606 (SBC 10.4") & the 563441 (BOP 10.4"). As buick7332 stated the forks are specific to our cars for these bellhousings, no other platform used them. They are curved to match the offset of the ball stud.
My bell housing has #3899621 stamped. The engine is a '76 400. The fork does not appear curved and does not align well with fork. Everything worked when I drove it home though. I can barely wiggle the fork with the rod disconnected, it does move.
The clutch fork ball stud was also available in three different sizes. It is critical to the fork placement. There is also an adjustable stud.
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Bonnewagon- great photos.. I never removed ball stud from bell housing when cleaning up. Like I said, all worked when driven prior to rebuild. Do you know if the stock t/o bearing is 1 1/4 in tall? I am waiting to contact Perfection Clutch to find out size they have in my kit.The clutch fork ball stud was also available in three different sizes. It is critical to the fork placement. There is also an adjustable stud.
You need to check your pressure plate. There are flat finger diaphragms that use the long throw out bearing and the bent finger diaphragms that use the short bearing.
Also, from my own experiences
A standard bell housing such as that 621 housing and a standard fork will cause the fork to contact the floor right under the gas pedal. Did some one bash the floor in there?
Also, from my own experiences
A standard bell housing such as that 621 housing and a standard fork will cause the fork to contact the floor right under the gas pedal. Did some one bash the floor in there?
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