Gernby

I'm replacing my OEM clutch this weekend with another OEM clutch after 55K miles. I haven't taken it apart yet, but I'm curious if I should resurface the flywheel regardless of condition before putting it all back together. Obviously, if it is severely scored I will go ahead and do it, but if it is not scored, I'm not sure what would be best.

It seems to me that it will break in quicker with a fresh surface, but it also seems like decreasing the thickness of the FW will reduce clamping force a bit.

Any comments?

fltsfshr

I would always plan on having the wheel refaced on a new clutch. WHy put a nice new clutch surface to an uneven flywheel?

Just my opinion

fltsfshr

Intrepid175

It may "look" just fine but it could be a few thousants out of true. If it turns out that you didn't need to do this, at least you'll have the peace of mind that everythings Ok. If you do find that it really needed this, then you just saved a brand new clutch from an early death.

Either way, I think it's worth the added expense in the long run.

Good luck & Drive Safe,
Steve R.

fltsfshr

Hecash

How many have you put in? I know you've had your car for a long time. I think you race too right?

How many miles to a clutch aprox? You run a stock clutch?

Thanks

fltsfshr

revhi

I've seen my dealership techs usually just smooth out flywheels real fast with the wiz wheel, if they dont need to be replaced yet.

Gernby

I'm not basing my decision by the cost of having it done. I just don't really like the idea of having it resurfaced, since it will reduce mass, and it seems like it will reduce clamping force.

cdelena

Same here... the last time I did mine I just used 100# sandpaper on the FW and PP and just replaced a badly glazed FD. Works great.

Gernby

Since we are talking mileage expectancies ... My original clutch has 55K miles on it, and still works okay, but it hasn't ever been strong enough to even chirp the tires (even all season tires) without side stepping the pedal (which I've only done twice). I've done countless autocrosses (on R compounds), 6 track days, and rarely drive on the highway.

s2kboost

DONT CUT IT, THAT ONLY DROPS CLAMPING FORCE. JUST CLEAN IT REALLY GOOD

Billman250

Cutting it will not reduce the clamping load, if done correctly. If they cut only the friction surface, yes. This flywheel needs to be "step cut". It would prolly take about .003 to get a 100% cut on the friction surface, hence you would machine the step .003 to preserve the clamping load. If you can find someone who is knowledgeable on cutting flywheels, I'd recommend you cut it. Finding someone may be tough...so scuffing it up, as long as it's flat, unburnt, and uncracked, will work just as well. I always cut S flywheels, notice the step is cut as well...This is an Exedy BTW...