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Problems with the motor of a MTH/Lionel Corp. 263E (traditional)

I've had another thread going about this engine. I had wheel slippage ever since I bought it and finally got a handle on it. Most of the solution involved adding more weight and removing the Bull Frog Snot I had on it. Anyway, tonight it was running and pulling real well. Until it didn't. All of a sudden, it seemed like the e=unit ceased functioning. Couldn't get it to move. But then I realized that if I pushed it, it would move, but slowly. I had no choice but to strip it down, remove the e-unit and motor and try to solve the problem. 

Here's what I found........the e-unit cycles properly and I do get full voltage readings when I put my meter leads across a brush well and ground and the opposite one when I try to reverse. I have to push the wheels to get them to start moving. I took the brush plate off and cleaned the brushes and the commutator. Added lube (but that was done when I worked on it last week).  I checked for loose or broken wires and can't find anything amiss.  The e-unit gets pretty warm, but most of them do when run for awhile. I don't notice anything charred or shorted on the motor or wiring.  But the motor suddenly lost it's power and after 4 hours down there, I'm out of ideas (at least for tonight).

Any suggestions will be appreciated

-Roger

Original Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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