should I be concerned with this flywheel?

No.11

10 Year Member
Oct 13, 2009
614
10
48
Los Angeles
I received my ford racing flywheel from american muscle along with a few other goodies. everything looked good, except for this scratch on the clutch side of the flywheel. should I be concerned with this? I bought brand new stuff so I wouldn't have to worry about getting something damaged... I don't want to have to resurface a brand new flywheel. should I ask for a replacement? or is this nothing to worry about?

541aa383.webp
 
A scratch won't give you problems at all. Slotted brake rotors don't cause problems.... What will is a warped/uneven surface, or a glazed surface keeping the clutch from biting properly.
 
Maybe someone more knowledgeable can expand on this, but I believe it is acceptable to run Scotch Brite over the flywheel surface. I'd be tempted to do that in this case to make sure the scratch doesn't have a sharp edge or a burr.
 
Maybe someone more knowledgeable can expand on this, but I believe it is acceptable to run Scotch Brite over the flywheel surface. I'd be tempted to do that in this case to make sure the scratch doesn't have a sharp edge or a burr.

Yes, you're actually correct. I'm not more knowledgeable, I've just seen it first hand (Nylon Scrubber).
 
Running a high speed scotch brite pad over the surface is often done to remove the "glaze" on a used flywheel that develops over time. Usually from clutch slippage and heat.

A brand new flywheel shouldn't have that issue. If it were me, I would just hose it down with a little brake cleaner and maybe just scrub it down with a pad or some 320 sand paper by hand, just to dull the surface a little and as stated remove any sharp edges? I would resist the urge to try to polish that scratch out. You'll just end up with a low spot and a ruined flywheel.