Aasco flywheel is here.

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Originally Posted by Topless

Nice! Excellent analysis of mechanical resonance as applied to our Boxster drive trains. You have a patient writing style that is clear and easy to understand Kevin.

thanks! glad it was coherent.

[thstone]

Thank you very much. I greatly appreciate the time that you put into this response. Let me digest and get back as soon as I can.

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a few pics of the balanced assembly.

flywheel:

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pressure plate:

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and a comparison of new vs. old friction surfaces. note the deformation present in the old friction surface near the fasteners. this tells me that either:

1. the factory didn't properly clean the flywheel & friction disk during assembly
2. one or the other wasn't machined flat (unlikely)
3. they over-torqued the fasteners (most likely)

BTW, the old friction surface only has about 12k miles on it. the new one w/ new fasteners, a new pilot bearing & a new torque plate costs just under $200 from aasco.

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result? pretty noticable. the vibration is gone & the engine is buttery smooth. i used to cringe when i revved it high. now, i beat the **************** out of it & feel great.