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Old 09-19-2005, 11:07 AM
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C4 install question

i removed a fmx and now installing a c4.

here is the problem;

the flex plate is rubbing up against the flywheel in certain sections -when the transmission is flush and bolted up to the motor. the plate is not bent. i'm wondering if there is a certain way of lining up everything...

any help on this is greatly appreciated!

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Old 09-19-2005, 11:45 AM
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i dont understand your problem? if, for some reason, you have a flywheel in there, remove it - there is no flywheel in an automatic! unless you mean the flexplate is rubbing against the backplate... but that just means that either your backplate isnt completely flat, or it isnt seated properly against the block.
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Old 09-19-2005, 12:06 PM
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c4 install question

hmm, guess i'm wrong, but i thought the flywheel was the part in which the starter engages to turn the motor over.

it is my understanding that the flexplate is the cover between the motor and tranny. this is the piece that is rubbing up against the (what i thought/think) is the flywheel.

please let me know where i'm going wrong here in terms. it is an automatic C4.
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Old 09-19-2005, 12:23 PM
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yes, what you thought was the flexplate is actually the backplate, and what you thought was the flywheel is actually the flexplate. the backplate sits against the block on two 1/2" dowel pins on either side of the block. since you said that you've had the tranny bolted up, i'm guessing you had it seated properly. unless the backplate is bent somehow, it should be completely flat and wouldnt touch the flexplate at all.
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Old 09-20-2005, 09:27 AM
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i really appreiciate your help. i've got the terms down now. what i've figured out is that i need a cover thats flat. the currnet cover isn't flat, therefore the rubbing.

thanks again
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