Shaving a flywheel

[kukunaokala]

Anyone shave, ahh..turn down, lighten a flywheel? If so, how much did you take off? My clutch is coming this weekend so I would appreciate a timely reply. Did a search and came up empty.

Mahalo (thanks), Neal the Novice

To 1.2G's and a few others, I know how to put the trans back. The Hammer is in the tool box.

[lm6y]

Good deal about the hammer Neal. I thought we would have to take it away from you, until you learned your lesson

As for the flywheel, are you just wanting to resurface it? Or are you wanting to lighten it? If you just want to re-surface it, any machine shop should know the deal on that. As far as lightening it, I don't have a clue. You might want to leave that up to the guys who do it best, Like a Porsche specialty machine shop. Or, at the very least, someone who has some experience with it.

Does anyone know if these are internally, or externally balanced engines?

[Blackfoot]

you gamble with using a shaved stock flywheel...they can be prone to catastrophic failure. i'd opt for getting a good aftermarket unit (& clutch while you're at it).

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it's all the shaver...

[1.2gees]

I must agree with blackfoot, either get an aftermarket one, or don't touch yours (for lightenning purposes).

I've heard that on most Porsches from the 80s, the flywheels have a special surface structure to them, when machined the clutches can't grap to well. I don't know if there's much truth to this.

I would think that if you take enough weight off the standard flywheel, you might give up some of it's structural integrity.

PS: Most sport/aftermarket clutches are 2-8 lbs lighter than stock
Ahmet

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It's all the driver...