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-   -   Flywheel thickness (http://forums.pelicanparts.com/911-engine-rebuilding-forum/446481-flywheel-thickness.html)

aircooledkiwi 12-15-2008 08:48 AM

Flywheel thickness
 
I'm replacing clutch/flywheel in my SC motor and have had flywheel machined and surfaced - looks good.
Minimum thickness for this flywheel is stated as 8.5mm, and after machining mine is 8.76mm. Should I use it?
For reference, a new flywheel measures 10.92 mm thick.

lucittm 12-15-2008 01:24 PM

Enjoy the lightness! You are within spec and the metal doesn't really wear down that much.

Mark

aircooledkiwi 12-15-2008 01:48 PM

OK - I hadn't considered the weight reduction but its probably significant with a ~20% decrease in thickness. I'm going to weigh them to check.
I just want reassurance that it will have a reasonable service life under normal street conditions with a fairly stock 3.0.

Henry Schmidt 12-15-2008 07:40 PM

Less material means there will be a greater chance for surface cracking. If you intend to drive this engine hard, replace the flywheel. If your intent is casual drive, run the flywheel.

aircooledkiwi 12-16-2008 12:58 PM

Thanks Henry - I'm going to run it.
BTW I just got my distributor back from you and it looks bloody beautiful! I didn't expect all the replating work and the really nice job filling in the old vacuum actuator hole etc. Excellent work.
http://forums.pelicanparts.com/uploa...1229461084.jpg


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