I was referring to the flywheel concerning the resurface. The PP is new. Can the hard spot areas be identified prior to resurfacing?
To my knowledge without testing, No. Before the surfacing they visually appear as blued or other color irregularly shaped spots and sometimes cracks. After surfacing the surface may appear fresh and normal but can be very irregular to a friction surface (clutch material). Most clutch manufacturers typically recommend a new flywheel for the above reason.
