New Clutch Defect - Should I Install?

Discussion in 'Transmission & Driveline Topics' started by Rayden2009, Jul 25, 2020.

  1. Dave Nelson

    Dave Nelson Veteran Member

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    What type of crankshaft bushing are you using?
     
  2. Rayden2009

    Rayden2009 Veteran Member Gold Member

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    The one that came with the kit. Used bread to get the old one out and hammered the new one in with a socket.

    BFC3CF70-E55E-4FD5-B435-8BC14E00258B.jpeg
    (the damage on the crank was not by me).
     

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  3. budro6968

    budro6968 Veteran Member

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    Did you replace your freeze plugs while you were there? The one on the right looks like it is rusty.
     
  4. biker

    biker Veteran Member

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    Good catch. The back ones are awful once everything is back in the car.
     
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  5. COPO

    COPO Veteran Member Lifetime Gold Member

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    They all look like their 50 yrs old. Hope you take care of that.
     
  6. badazz81z28

    badazz81z28 Veteran Member

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    Looks like old paint and junk/oil. Worth a look.
     
  7. 1978 Z/28

    1978 Z/28 Veteran Member Gold Member

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    If Mcleod says this normal will not be buying one of their clutches
     
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  8. Rayden2009

    Rayden2009 Veteran Member Gold Member

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    Ive decided that clutch is the last nickel I put into this drivetrain. Ive been limping it along for years. The next failure, regardless of how small, will push me beyond the event horizon and the whole thing is coming out. I will bite the bullet and start saving for a LS/T56 Magnum. If those plugs go, its a sign.
     
    Last edited: Aug 10, 2020
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  9. budro6968

    budro6968 Veteran Member

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    Yes. That is a chore, If one goes bad on the side then it is not long before the others go too. I replaced one on my Moms 79 267 Chevy Malibu SW. 2 weeks later the 2 on the back started leaking. I just pulled the engine and did them all. Plus new Rocker gaskets Timing cover and oil pan. Back then I got it done and a driving in just under 2 hrs. I was late for a party and everyone was waiting on me. But They were too drunk to drive and help me. Typical.
     
  10. black_aerocoupe

    black_aerocoupe Veteran Member

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    A fair number of new PP and flywheels are new, but don't have totally parallel surfaces. In mass production, they get machined with a concave or convex face. This leads to uneven friction break-in, and uneven disc. wear. Before installing any PP or flywheel, a straight edge should be used on it. In your case, if the PP were cleaned up by a brake and clutch re-liner business, it might make your naughty spot go away. Especially if it was concave in the first place.

    A small indented area you're showing is not a problem, any more than the friction surface passing over those 3 drilled holes. The disc can't catch and shred on that area unless the edge of that spot is raised. Plus, the very outer edge of the pressure plate isn't getting much friction contact in the first place.


     

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