fsae_alum

I just got my stock flywheel resurfaced and before I dropped it off, I forgot to take some measurements to make sure that they machined everything correct when done. Can somebody please tell me what the following flywheel measurements are?

1.) Pressure plate to clutch disk step height (needed to make sure that the shop took the same amount off both the PP mating surface and the clutch surface)
2.) Clutch mating surface step diameter (needed to make sure that the shop didn't cut too far or not far enough into the flywheel radially)

Thanks for any help! Last thing I want to do is put it on the car and spend another 4 hours getting everything bolted back up only to find out through vibration or premature wear that they machined it wrong!

Thanks again for any help you can provide.

WaLieN

I've got an ACT Streetlite (13lbs) flywheel if you wanna take a look at it. I dunno how close it is to stock measurements, though.

fsae_alum

Thanks for the offer but unfortunately I've got no ride and thus can't get over to your place to take the measurements. Is there any way that you can measure it for me? I'm just looking for 2 measurements. The diameter across the stepped up face and the height of the step itself. Any help you (or anybody else) can provide on this would be great.

Thanks!

Sgtblue

iTrader: (16)

Not sure how much this will help you, as this is from a stock flywheel that also has been turned but never used. FWIW, it was in decent shape prior to being turned, they only resurfaced it. So I believe the amount removed was minimal. And sorry, the measurements are pretty crude but it's the best I could do with what I have here at home:
9 and 11/16 inches or approx. 24 centimeters.
Approx. 3/16 inches or .50 centimeters.

alexdimen

iTrader: (13)

Why do you think they did it incorrectly? Machine shops have a book that tells them the specs of every stock flywheel.

fsae_alum

Thanks for the measurements SgtBlue!

The reason I'm asking is because I don't remember the step being as tall as it is now after being machined. Liekwise, I don't recall the step diameter being as small as it is now.

It's better to find out now if there is indeed a problem as opposed to after I have spent 4-5 hours getting it all back together and take the car out for the test drive.

Thanks again for the measurements!

billyboy

Not sure what's happening there - conversion error?? - a used stock and aftermarket flywheel measure out around .5mm. Diameter, I've got 250mm.

Sgtblue

iTrader: (16)

My conversions can sometimes be off, but that referred to the height of the step, not diameter. I think our diameter measurement is pretty close to the same.