Should I replace the friction plate on this findanza? I'm doing stage 2 competition clutch on 94' civic. I got mixed search results about weather to sand it, scuff it, get it resurfaced, ect... A new plate is $100.

 

The guy at the machine shop said he didn't recommend resurfacing these. Something about the step-down measurement between the height of the friction plate and the outer edge where the clutch cover bolts to. Basically, if you resurface the friction plate, the gap the clutch fits in is wider, and the clutch can slip well before it should.

You can mill the edge, but that's probably not a good idea for strength.

 

When I took the solid flywheel to the machine shop, they told me they almost never resurface them. They rarely is enough meat left to resurface.

From this, I learned, work in the cost for a new flywheel to do a clutch job. It's easier and has better results.

 

There is nothing wrong with installing a new friction plate on it... I do them all of the time. I suggest that over resurfacing it.

 

I can't tell from the picture but if it isn't worn down lower than the places where the disk doesn't touch, you could just run it.

If you machine the flywheel you also have to cut down the area where the clutch cover seats to, so the overall thickness inside is the same. There is only a couple of mm difference between new and worn out. As the others said this setup is designed to bolt on a new friction area.

 

Do you usually measure run-out before installing a new clutch disc so as to see if there will be much clutch chatter?

 

I measure the step and compare that to the spec required for the application. Measuring run-out is easiest when the flywheel is bolted to the engine.

 

I'll just add depending on your power goals you dont always need a new flywheel. Daily driver d series? I'll risk it

if youre double your original power level and already burned through a clutch, id replace the flywheel.

Fun fact, 88% or more of brake dust is actually iron from the rotor. Id imagine the same is true for a flywheel