Re: phelon vs scintilla magnetos

[green-thumbs]

I would caution against using a nut directly on crankshaft threads. I did that ONCE installing rotor on a KE3 (after removing a broken rotor…) It was a tight fit and required force…got the rotor on but stretched the threads. Doctoring up the threads took longer than making a workable set of installing tools from 3/4" half threaded studs. Nothing fancy just face end of stud, drill hole and tap for either 7/16" fine or 1/2" fine. SOFT metal was easy to machine and already threaded for 3/4". Needed only a nut,washer and piece of pipe to complete. Later improved by milling a flat on threaded end so wrench could be used to hold crankshaft steady while nut pressed rotor into place. A hole drilled thru to accept a drift pin would work as well.
"Tools" can be made "good enough for present purposes" or they can be made to very high standard and finish. All that really matter are results.
Louis