Clutch Questions? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Spinnaker · 08-05-2010, 02:40 AM

The dual mass flywheel cannot be resurfaced if it is damaged. It must be replaced. This is one of the costs of owning a Boxster.

coreseller · 08-05-2010, 04:06 AM

That ebay price is as good as you're going to find, at least it was a few months ago when I bought mine. Spinnaker is right, you cannot have the dual mass flywheel resurfaced. You can clean it up with a palm sander / die grinder and several abrasive discs (like I did, only 38k miles on it though). There is a procedure to check if your flywheel is within spec, it measures the deflection between the two metal sections.

"Can the DMF be twisted by approx. 15 mm to both the left and the right, and does it then return to approximately its initial position?" -- then the flywheel is good.

"Can the DMF be twisted beyond the dimension stated above (excessive turn) without a noticeable increase in the spring force?" or "Is the DMF fixed (can not be twisted)?" -- then the flywheel is bad.

Hope this helps....

dirkdiggler · 08-05-2010, 07:43 AM

Hi

thanks guys

I see others saying that they have had theirs re-surfaced.........

Is it impossible to resurface them or will shops just not do it?

JoeFromPA · 08-05-2010, 08:34 AM

A shop should not re-surface a well-used, well-aged dual mass flywheel period. For a relatively newer DM flywheel, a shop MIGHT smooth out the surface as coreseller described.

dirkdiggler · 08-05-2010, 09:09 AM

Considering my Clutch is slipping in 4th and 5th gear ...... does that generally mean the flywheel is destroyed?

and

How long can I drive it while it slips a little? days, weeks.....months??

Boxtaboy · 08-05-2010, 09:31 AM

I don't think anyone can reliably tell you how long your clutch will last now that it has already started to slip. It can be days or weeks, but why take the risk of getting stranded? Just replace it asap.

dirkdiggler · 08-05-2010, 09:43 AM

My mechanic friend is pretty booked up for the next 2 weeks and can get squeeze me in for a larger job like this really soon.

Just trying to get an idea of how long others have driven there boxster with the clutch slipping, just to get an idea.

If it is slipping, does that mean the flywheel is junk already?