I forgot to follow up on this on the board. I soaked with Maltby penetrant overnight, then loosened the engine mount bolts and hit the shaft with an air hammer. It shot out like a bullet and nailed my white cabinet face, leaving a nice mark!

make an thread inside the swing arm axle and use this thread to pull the axle.

Great idea! I do think that if I'd have loosened the motor mounts it wouldhave shot out anyway. The grease still looked good. It had to have been bound.