I havent had my hands on a generator in 40 yrs,
I do know that I had to remove the woodruff key from the pulley/balancer on my 235 by tapping and pulling........ tapping, only thing that kept it intact was the alt. belt.............darn thing come off once while driving at 65.........got me a replacement from langdon's, this one stayed on pretty good, had to keep the belt tight and checked..