ACT clutch installed, now noise?

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Feb 16, 2005 | 08:10 PM

#16

ACTman

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From: lancaster, ca

Quote:

Originally Posted by taylor

I had an ACT HD street clutch installed about 400 miles ago. It feels great, but now the trans. is definately louder that before. I only notice it when i bring the engine up past 3500-4000rpms(in any gear) and let off the throttle. It's not a whining sound, just a loud mechanical rattling type of sound, and the car feels fine otherwise. Is this a normal aftermarket clutch sound or could it be something else?

It sounds like gear rattle by the description. It doesn't sound like the assembly/bearing issue. I am going to take a guess that you also installed an aluminum flywheel. Is that the case? I only say that because we haven't had any complaints about noise and with the reduced weight of an aluminum flywheel the disc springs have a more difficult time dampening out torsional vibrations. These vibrations end up making the gears rattle when not under load, which is an audible noise. They take more of a beating too so a super light flywheel ends up contributing to premature disc center wear/damage. How was my guess?