Look At My Flywheel

[PRO_32]

Ok so engines out so I guessing him berry single plate but are these marks on the flywheel normal

[ARTZ]

for someone that likes to abuse their clutch, yeah they can be considered normal....

go get a machine shops opinion though seeing as it would need to be machined anyway...

[GTRPSI]

Just some hot spots.

Im using the word some loosely.

[89CAL]

Looks like its been warm and slipping/shuddering to me

Get it machined, new/rebuilt clutch, drive it properly. Should be fine

Edited June 5, 2014 by 89CAL

[PRO_32]

Yeah pretty much what i thought looks discoloured prob due to heat, if the clutch has been treated hard it wasn't from me (previous owner) only strange thing I noticed was there would be a shudder pretty much every time I take off from a standstill no matter how I would let the clutch out be it riding it or gentle throttle or rev n dump always a momentary shudder I just assumed it was in the diff. Anyways thanks for the replies guys heads at the machine shop so I'll give it to him to machine the surface and convince the misses a nismo Coppermix is the only solution to this problem.

[89CAL]

The heat has probably just altered the material on the clutch plate a bit so it doesnt grip quite as well. No big deal seen as you know where to go from here. Consider an NPC clutch and flywheel as they are both great products. The clutch you have now looks like its only a 9.5", you can go NPC 10" which means it will handle the power and still be relatively soft pedal feel.

[jiffo]

Had this car had the clutch replaced not too long ago?

Flywheel appears to have fresh grinding marks on the area not exposed to the driven plate.

The marks look like the wheel wasn't machined on a lathe, it was done of a surface grinder and I haven't seen a wheel done by that method for a long time.

May explain your jumpy clutch.

[89CAL]

My clutch is never done on a lathe, and I dont know anyone who does this with a lathe

Forget the name of the machine mine is done with but you end up with what look like big swirls through it but I have never had a clutch problem. It's the proper machine for doing it

Edited June 5, 2014 by 89CAL

[jiffo]

Depends on the workshop's equipment.

One like this Peterson was once standard gear for flywheel and cylinder head re-surfacing.

More modern equipment, a purpose built flywheel grinder.

If none of the above is available, into the lathe it goes.

[PRO_32]

Well apparently rebuilt box and new clutch about a year before I bought it. I've been lucky to have put 5k kms on it But who really knows. I thought buying a nice clean stock car would mean leaving it alone so I can play with the other car but all it's done is make he garage look even busier. Thanks for the replys guys.

Here's a pic of plate and clutch for interests sake

[ARTZ]

bit off topic here but my flywheel has been out in the weather and got surface rust...pretty sure it was machined before this though, does it matter

[89CAL]

I wouldnt use it.......

I think (and I could be wrong) that my flywheel gets done on the same maching that surfaces the deck of the block. But I've never seen it actually done so not 100%

all good anyway