I have been doing a little more research on these motors.....I first did a autsphoy of my lionel motors and discovered that most failed because one of the little metal brushes got to hot and failed......so I checked the new motors I bought on ebay and they have the same type of metal brush.....NOT GOOD,,,, I then started to search for other types of motors and I found one. Same size in every respect but they have Carbon brushes. I have ordered some for testing purposes.......good chance this is the way to go...........
Jackie