I didn't wallow it out, just isn't smooth looking (scratched looking?). Noticed a slight drag when rotating the prop hub without the drive plate connected when trial fitting temp engine mount. The drag is less now, so won't worry about it.

Wendell

There is no relative rotation between pilot on input shaft and pilot hole in crankshaft BUT The input shaft pilot should be a close fit because it keeps the rear of the input shaft properly aligned.  Don't wallow it out indiscriminately.  A small groove in one side (from the dremmel operation) will not hurt.

 

Tracy