Thanks Norm,
I doubt that mine will be that high. I might need some spacers as well. Full cranks and Powertorques and FC's have the same shaft length don't they? I was just hoping that if I put the pulley on the end of the shaft all would be OK but I had no idea what the correct measurement should be. Still its easier to raise the pulley than lower it.
That one of yours must have a top starter motor, not side pull. Much earlier although probably more common. No sign of a sliding plate or even the bolt holes for one.
All the best
Jeff