I hate cutting these shafts down. I think they are harder then my chinese carbide cutting tools on my lathe! Plus I don't want to try and take this crank out of a 15 year old engine as it is press fit into the bearing and has been in there a really long time. On top of that the woodruff key is probably made out of chocolate and you know that's going to break! (mental note, don't use Homelite blower engines in the future as they have stupidly long shafts!) How about this for an idea? I'll make the propshaft 2" long and make a long nut to resemble the full size variable pitch prob hub. Thus bringing the propellor further inboard. Does this sound like a plan? I'm using 1 1/2 round 6061 for the propshaft so this should be thick enough to absorb some of the resonance.

What do you think?

Rich

P.S. Love the twin!!