Crank Thrusting Foreward Issues

Whoa.... that is moving a ton more than .030" ! That's gotta come out; dang. At least you caught it.

I think I would pull of the damper just to be sure it is the crank that is moving, and not the damper loose on the snout. Have you re-tightened the bolt? Does it have the very thick retaining washer under the bolt head? Just wondering if something is awry there.