I believe the Corvair engine/transaxle is set up to rotate in the opposite direction of lmost, if not all, other engines.
I've owned two - I guess I didn't pay that close of attention. I know that if you pulled the starter drive from a Vega starter and used the Vega starter motor with a Corvair nose and gears , it was a cheaper replacement than a rebuilt Corvair starter.
Vega? Corvair? Yeah, it's been a lot of years.
I guess I don't recall the orientation of the starter with respect to the flywheel.