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Old 07-04-2006, 08:26 AM   #1
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Flywheel. The flywheel can get out of balance because it is a dual mass flywheel and I'm sure it's not a good thing for the pilot bearing. Ours does the same thing in the 3000-3200 rpm range. I'm replacing the flywheel when it's time for a clutch job, then it should be good to go again. The same problem occurs in other cars (Audis, etc.) that have the dual mass flywheel.

If it's driven properly at around the 4K rpm range, you rarely notice it so keep it up a little.
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Old 07-04-2006, 10:43 AM   #2
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can you find a highly recommended private porsche mechanic - one who has no reason to deny the existence of a problem for warrantable problem. not suggesting you need to have the private guy fix the problem (unless of course it's not a warrantable problem and you end up paying the dealer as well). but if it is a problem that would be covered by warranty, have the private mechanic find and document it then take that to Porsche. o/w have the private guy find and fix the prob. if anything, the private mechanic may be more willing to explore the problem or may have previous experience with the same prob.

good luck
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