Thanks Dick, you are right about running loose for many years. That is why when we used the crank it broke free without hurting anything or anyone. I tightened real good on the lock nut this time and let the set screw turn with it. It is holding so far.
The crank shaft, as I remember when I had the crank pulley off for a front seal change, was not worn. If I need one, do they still make these pulleys? I have not seen them on the web. Hopefully I will not need one.