can't really see what's been written there but ASSume it's tapped to match the crank thread?? if so that would probably be just fine and not so different than what's done with the prop hubs on a lot of big gas engines.

disadvantage is that the shaft is threaded all the way back to the shoulder and would probably bend/break right there pretty easily. might be better to drill/tap the crank and use a replaceable threaded stud for this part.


dave