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Thread: Clutch chatter, what's that slap sound

  1. #11
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    Read your posts on the other site. Things look far more complicated than I thought.

    Is there any noise when you engage/disengage the clutch with the transmission in neutral?

    Have you checked the thrust clearance in the engine?

  2. #12
    Registered Member volksnut's Avatar
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    Quote Originally Posted by Rick_L View Post
    Read your posts on the other site. Things look far more complicated than I thought.

    Is there any noise when you engage/disengage the clutch with the transmission in neutral?

    Have you checked the thrust clearance in the engine?
    No noise when engaged/disengage in neutral. No I have not checked the thrust clearance. I know working with VW's you have to, how do you on a Chevy? The thing is, the clutch pedal is hardly getting pushed when it makes this noise. I had a response on the other site that possibly it's the wrong clutch fork.

  3. #13
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    I'd say it's only the clutch fork if it's hitting something.

    After watching your video of the driveline I don't think that's it.

  4. #14
    Registered Member volksnut's Avatar
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    I just found this interesting. If you watch the second video (#265) at approx. the 15 second mark when it starts chattering look at where the flywheel and pressure plate meet. Is that the flywheel moving?

  5. #15
    Registered Member chevynut's Avatar
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    I hate to say it but I think your clutch disc is installed wrong. If I were you I'd pull the tranny and the clutch and as bad as that's chattering you should find some damage. I don't see how it could be related to the fork, and the whole engine shakes when it chatters. I think the clutch disc is hitting the flywheel bolts. Nothing else makes sense to me because the tranny isn't turning.
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  6. #16
    Registered Member volksnut's Avatar
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    Quote Originally Posted by chevynut View Post
    I hate to say it but I think your clutch disc is installed wrong. If I were you I'd pull the tranny and the clutch and as bad as that's chattering you should find some damage. I don't see how it could be related to the fork, and the whole engine shakes when it chatters. I think the clutch disc is hitting the flywheel bolts. Nothing else makes sense to me because the tranny isn't turning.
    Flat side towards the flywheel, but here is an interesting tidbit. When I removed the original cast flywheel I noticed all 6 flywheel bolt heads were ground down. So I assume they thought it could be the problem also. Remember it's done this with 2 different clutch systems, a 12" 3 finger truck clutch and this 11" Mcleod.
    Last edited by volksnut; 05-31-2016 at 07:33 AM.

  7. #17
    Registered Member chevynut's Avatar
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    Quote Originally Posted by volksnut View Post
    When I removed the original cast flywheel I noticed all 6 flywheel bolt heads were ground down. So I assume they thought it could be the problem also. Remember it's done this with 2 different clutch systems, a 12" 3 finger truck clutch and this 11" Mcleod.
    IMO there's some kind of mis-match in the clutch or flywheel parts. I would disassemble it and look closely at how the parts fit together. I thought a 1-piece seal crank took a different flywheel but I'm not sure.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


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    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
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  8. #18
    Registered Member volksnut's Avatar
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    Quote Originally Posted by chevynut View Post
    I thought a 1-piece seal crank took a different flywheel but I'm not sure.
    Yes it does and I have it

  9. #19
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    You can't have the wrong flywheel and actually bolt it to the engine.

  10. #20
    Registered Member volksnut's Avatar
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    Here's the set up
    Attached Images Attached Images

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