ORIGINAL: buck1856
Thanks av8tor.The only thing is it has the straight crank shaft.I was thinking about doing it like the ryobi 31 and just use a set screw on the side where the keyway would go,and then put the magnet apposite to kind of balance it out a little,then just use the nut to hold it all on..But being anything that close to the center of the crank and light shouldnt cause any imblance that is noticible.
Or,would it be better to rethread the crank and then use a nut to hold down the hub in the center like a G62,and use 2 bolts to hold the hub on.
Also,how would somone make the square keyway in the hub.What tool do ya use.This engine used the bar stock keyway,1/4x2 inches.[or a little less maybe].
"Also,how would somone make the square keyway in the hub.What tool do ya use.This engine used the bar stock keyway,1/4x2 inches.[or a little less maybe]."
A cheap way,(free) to add your internal keyway, using your lathe.
UNPLUG the lathe…! Lock-out.Remove fuse etc.....
Chuck your hub in the 3-jaw. Check run out. LOCK the head stock spindle.
Run a boring bar with a 1/4" square tool bit (homemade if needed) in,and out using the carriage hand wheel, adjusting out a just few thousandth at a time,using the cross slide,until you reach the desired depth in your hub.
Maybe do a practice"broach"on a some scrap first,just to get the feel for it.
Edit to add pics.