Author Topic: Clutch Issues  (Read 2526 times)

Butternut68

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Clutch Issues
« on: May 04, 2021, 04:49:12 PM »
I'm lost. I installed a new pilot bushing and throwout bearing the other day, tested the car, everything worked fine, clutch and all. But now, not 3 days later, the clutch won't disengage. I figured I'd try and see what was up, but nothing was working. I then tightened the lower push rod so that the was no free play in the fork just to see what would happen and still, the clutch will not disengage. I checked the bellcrank and everything is tight. I'm at a loss and any help would be appreciated.

william

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Re: Clutch Issues
« Reply #1 on: May 04, 2021, 09:00:30 PM »
Some of the cheap parts store pilot bushings have high iron content. May have seized on the input shaft.
Learning more and more about less and less...

z28z11

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Re: Clutch Issues
« Reply #2 on: May 05, 2021, 12:06:29 AM »
Clutch plate may have flash rusted to the flywheel, or the pressure plate (or just might have stuck to it). Had that happen before a couple of times, especially after surfacing the flywheel. Sometimes depends on the manufacturer and the clutch plate material that I'm sure has changed significantly over the last years. Try a little more rpm and see if it releases with some torque if you haven't already done so.

Regards,
Steve
1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

bertfam

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Re: Clutch Issues
« Reply #3 on: May 05, 2021, 01:07:50 AM »
Guessing won't fix it. You're going to have to pull the transmission and clutch and do a thorough inspection.

Ed

roadster

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Re: Clutch Issues
« Reply #4 on: May 05, 2021, 02:09:33 PM »
Fork tabs in relation  to throw out bearing seem to be an issue for some . Some people seem to install fork onto bearing so the tabs rather than the fork apply pressure to bearing . Something to check if you are not sure .

WorkinProgress

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Re: Clutch Issues
« Reply #5 on: May 05, 2021, 07:42:47 PM »
I bought a '69 Z/28 back around 1980 that supposedly had a bad clutch. Guy tells me he put in a new 3 finger pressure plate and clutch disc and about a week later the clutch went.

So I buy the car and pull out the transmission. I look in the bellhousing and see the clutch fork is bent. I installed another fork and that fixed it.

Only time I ever dealt with a problem like that.

                                                                          - Warren