I found a Harley 45 motor in an old barn. The only id on it is the # T21456. It has a large pulley (about 20" dia.) attached to the crank that appears to be a drive for a some kind of pump. Can you ID ...
You say it is 45 CID, and has a 20" pulley mounted to the crankshaft?
I'd like to see a pic of that. Whatever that pic is, it sure ain't an old HD. Looks like a V-Rod wannabe.
Post a pic of the mill and maybe we can go from there. Truth is, I ain't heard of ANY model HD that drove a pump from the factory.
Rocmike do all of your aliases ride bikes?