Originally Posted by virtualbernie
Originally Posted by vintagemotif
I would be careful with the Singer 15-91 since they are internal motors. But the 15-89/90 have external motors that can be removed and dropped into treadle.
I don't understand "internal motors"--mine has a pot motor is that what you're calling internal motor? I haven't had any problems with mine and I just love it!
Yes, a potted motor is that. Most are excellent motors, but you can't treadle those.