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somethings out of balance!

This is a discussion on somethings out of balance! within the Manual Transmission forums, part of the Drivetrain category; okay... just put in a new clutch and resurfaced flywheel and there is a vibration at about 1200 to 2500 ...

  1. #1
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    01 M6 SS Turbo

    somethings out of balance!

    okay... just put in a new clutch and resurfaced flywheel and there is a vibration at about 1200 to 2500 rpms whether the clutch is in or out. the weird thing is that it goes away at idle (800 rpms). I thought the pressure plate might be out of balance but I doubt it. if it were in the clutch, wouldn't it do it all the time? and as the speed increases, you'd think that the vibration would get worse, which it doesn't. this is weird. anyone have the same thing happen?

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    Member keliente's Avatar
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    99 Firebird Formula

    Driveshaft?

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    01 M6 SS Turbo

    well, the drive shaft isn't moving when I'm not moving.

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    Member tici's Avatar
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    1998 M6 vert TA

    Quote Originally Posted by matt89
    okay... just put in a new clutch and resurfaced flywheel and there is a vibration at about 1200 to 2500 rpms whether the clutch is in or out. the weird thing is that it goes away at idle (800 rpms). I thought the pressure plate might be out of balance but I doubt it. if it were in the clutch, wouldn't it do it all the time? and as the speed increases, you'd think that the vibration would get worse, which it doesn't. this is weird. anyone have the same thing happen?
    What brand is the clutch? I had a new Spec assembly and it was vibrating because it was out of balance. More or less like yours. I'm actually discussing with them about this issue and they are telling me BS about a bad install. Fact is that vibrations come of out of balance.
    A good job is resurfacing the flywheel, then balance it to 0, then balance flywheel and PP bolted together. Best thing is to mark the bolts so you'll know which one goes where (unless you're sure they are all the same).

  5. #5
    Member '99 SLP#24's Avatar
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    1999 Camaro SS #24
    98 Corvette-99 Camaro SS

    Damn, that must be what happened to mine, about the same RPM with a Spec 2 clutch. Is it bad for anything? Should I be worried about it?
    -Will



    '99 Camaro SS SLP#24 -- Not as Slow and Still As Pretty

  6. #6
    Story of My Life!! BIG D's SS's Avatar
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    Black, Blue
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    No vibration is good. Damn that is some shitty luck.

  7. #7
    Member tici's Avatar
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    1998 M6 vert TA

    Quote Originally Posted by '99 SLP#24
    Damn, that must be what happened to mine, about the same RPM with a Spec 2 clutch. Is it bad for anything? Should I be worried about it?
    It's bad for the crank bearings!

  8. #8
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    01 M6 SS Turbo

    I just don't understand! If the flywheel is balanced when I took it out, and machined an equal amount off of the surface, how could it be OUT of balance? it's not like the flywheel was warped or they took off uneven amounts. I almost think it's the press plate itself... but they claim to be better than stock as far as the balance is concerned.

  9. #9
    Member tici's Avatar
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    1998 M6 vert TA

    ...the more I deal with cars the less I belive that 95% of what vendors tell is BS.
    They just don't give a #uck. The more they sell, the higher is their income.
    Better than stock... and 1/2 the price? Yeah!

    It's true: normally you don't need to balance a flywheel after it has been resurfaced. Chances are that the pressure plate is off

  10. #10
    Member keliente's Avatar
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    99 Firebird Formula

    Quote Originally Posted by matt89
    well, the drive shaft isn't moving when I'm not moving.
    I thought the vibration was when you were moving, sorry.

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