Re: Evinrude 7516 7.5 hp Fleetwin Flywheel nut size?

[Buccaneer]

Well, back from the garage and I’m still "nutless"
A new 1/2" x 20 bolt I had was .493 OD.
The smallest measurement on the crank threads were
.501.
Evidently OMC’s parts are made to different tolerances / size.
The end of the crank thread was slightly mushroom .005 over.
I had no good 1/2" x 20 die (which was probably a good thing)
so I split a used 1/2" x 20 nut, got it threaded on, then filed down
the .005 mushroom, and cleaned it up with a thread file.
New hardware store nut still wont go on, so I guess I’ll look for
a OMC nut.
Anyone else run into this situation?

Prepare to be boarded!