[Schurkey]

Originally Posted by gtorich

its been turned twice... ...so this would be the 3rd time... ...if you guys think doing this for the 3rd time is ok, might try it

Take it to the machine shop, let the expert tell you if it's suitable for another cut.

One would think that the flywheel manufacturer would have a "minimum thickness" spec, just like for brake rotors...although I've never seen one. I also haven't been into a manual transmission since the '80s, either. Have you contacted the flywheel manufacturer to see what they suggest?