AVB,
I have plenty of those bosses here from dead motors, I just cut the shaft off with a grinder and put the boss in the press and they come out easily. Most times I can get them off it was just that this one wouldn't move and I couldn't be bothered wasting time on it, When I cut it with the grinder and got the first section off the boss was very hot and the puller still wouldn't move it and even after I cut it through into the keyway slot and split the side off it it was still a struggle to get it off with the puller and it fought all the way to the end
