Ryan,


You must ascertain where the 'play' is!

"Nowhere" cannot be the right answer.

The crankshaft is one-piece, so the front cannot move separately from the rear (duh!).

The possibilities are:

1. The crankshaft is free to slip forward and back, in the bearings' inner races (for that I gave you a possible solution, in post #7, by verifying the front bearing's inner race, is held firmly between the 15 mm rear journal and the prop driver tapered collet.).

2. The bearings' outer race is held too loosely in the crankcase and is thus free to slip forward and back, with the crankshaft.

3. The bearings have too much free play, with the inner race moving excessively, with relation to the outer race.

4. A combination of the above three, or parts thereof.


When you engine is hot, does the amount of play decrease?