There's a nice little trick you can do with 2 zip ties to hold them in place. Go around the arm and line, the zip tie the first between the line and arm, tighten that one, the the one around the 2. It's hard to explain. I need to find pics of it.
Silly question, have you tried to flip the motor on its side and have them come out. I feel like your over complicating things. Or did it weld its self in place?