clutch chatter

1970 CHEVROLET CHEVELLE

5,000 MILES • 5.5L • V8 • RWD • MANUAL

FRAMEOFF

MEMBER
3 POSTS

I have a L-34 with a frame off restoration.

The 396 has been rebuilt, so I doubt I have oil on the clutch plate. I had the flywheel surfaced, new clutch plate pressure plate, throw out bearing, pilot bearing. I have real bad clutch chatter when I let out the clutch. I was told that it might be the motor mounts, so I changed the new factory mounts, for polyurethane mounts, It did seem to help but the problem is still there. I have changed all the universal joints as well. The only thing I did not mess with is the twelve bolt rear end, it seems to be alright. I have installed a lot of clutches in my day, but this baffles me.

Thanks for your help.
Dean

Mar 5, 2017 at 11:45 AM

STRAILER

✓Experienced Mechanic
55,224 POSTS

Hello,

Yes, clutch chatter is everything to do with the clutch disc, pressure plate and flywheel, when you say resurfaced do you mean re-machined? Because hitting it with a gasket gun will make it chatter. Also the quality of the clutch will play into things as well. Is it a new clutch not rebuilt? If new what kind is it?

Please let us know what happens.

Best, Ken

Mar 6, 2017 at 10:32 AM

FRAMEOFF

MEMBER
3 POSTS

Thanks Ken. I did have the flywheel surface ground, as for the clutch plate I don't know if it
was new or rebuilt. Most of the clutch kits I looked at where either made in Mexico or China
so I suppose that is a lot of my problem.

Mar 6, 2017 at 10:09 PM

HMAC300

✓Experienced Mechanic
48,601 POSTS

one thing you might try to cure it is to make it slip on purpose b y playing with the pedal, making it move not fully engaged, sometimes that will take care of it

Mar 6, 2017 at 10:14 PM

STRAILER

✓Experienced Mechanic
55,224 POSTS

Yep it will be, getting a new clutch will be the way to go, it wish I had an easy fix for you but I have done many clutches in my day and know what it takes to get them to work right.

Please let me know what happens,

Best, Ken

Mar 7, 2017 at 3:45 AM

FRAMEOFF

MEMBER
3 POSTS

Thanks Ken. Do you have a clutch name brand you like, I really don"t know if there is any made in the
u.s. anymore.

Mar 7, 2017 at 7:02 AM

STRAILER

✓Experienced Mechanic
55,224 POSTS

This one here look pretty middle of the road price wise and RAM clutches are pretty good.

https://www.amazon.com/gp/product/B000ML35YU/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B000ML35YU&linkId=9d8255d50e6d07c460f624fa87699360

Make sure no oil or grease gets one the disc/flywheel

Let me know how it goes

Best, Ken

Mar 7, 2017 at 7:43 AM

HMAC300

✓Experienced Mechanic
48,601 POSTS

luk is original equipment on GM vehicles

Mar 7, 2017 at 8:37 AM

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