Just goes to show that a little force in the right place and direction will separate the most stubborn of parts.
I just removed the tapered hub flywheel from my Wisconsin AEH.
While the Manual says a light tap on the crank shaft and the flywheel will fall off, I don't think they envisaged someone working on the engine 60+ years later
A short length of U channel and two of the fan to flywheel bolts and I had barely tightened up one of the bolts and it indeed fell off.
No BFH required
Graeme S.....just trying to help.