Never overlook the small stuff! [Archive] - Chevelle Tech

: Never overlook the small stuff!


Wally
Jun 30th, 09, 8:15 AM
Well after 4 trys at getting the clutch adjustment correct on this 67 I'm happy to say it is all better.

The root of the evil was a lot of small things that needed to be fixed, the ball depth in the bell, the fork with a broken spring clip, the Z-bar was a after market junker and the one I didn't catch right away was the ball bracket on the frame had been moved to accomodate the bolt on ball for the Mitchel motor, that's the one that bit me. I had to make a upper pedal to Z-bar rod one inch longer to get the Z-bar in the right posotion to release the disk. The 2 to 1 ratio of the fork means for every 2 inches of travel the bearing moves 1 inch. You need at least .700 release to fully disengage the disk. When I started this I had less than that.

I need to give credit to GM Jim, the tech line at Center Force and Hays for their help

The ball adjustment just can't be set at the majic 4.750, there is that pesky block plate that is .130 thick and the Hays flywheel that is thicker than stock. 1.010 thick and GM is .950, all these numbers need to be factored in the final height.

At 62 years old that 100 pound M22W was all I could handle, I need to work out more!!!!!

Car runs great and the key is the owner is very happy:yes::yes::yes:

I also fixed the ignition, cooling fan relays, the leaky fuel pump and many other problems.

This is yet another example of people getting hammered by a shop that was clueless.

Jerry Briggs
Jun 30th, 09, 11:02 AM
That's good news Wally. Can I bring mine over to give you something to do now that your all caught up?:D

BowtieAaron
Jun 30th, 09, 11:34 AM
i have had so many clutch issues.. as i have had the trans out 9 times in the last 5-6k miles.

i realised i am done going the cheap route on anything, and doing everything right the first time.

my flywheels were all atleast .200 thinner than the stock gm flywheels, and i didnt figure this out until the 7th time it was out.

but what a difference all this makes. GM clutchfork, correct pivot ball height, dialed in bellhousing... well worth it.

aaron