I inherited a lovely LGB set from my father, including a 2085D Mallet locomotive he purchased circa 1980. The rear motor on the locomotive died a couple years ago. (Taking it out and pumping high voltage and current through it causes it to turn fitfully, requiring far more DC than it ought to, and smoke (!).) I bought a replacement locomotive at the time, and am now getting around to trying to fix the 2085D.
I purchased a replacement motor and just went to swap it out…and it's not quite right. It's still a Bühler motor, and the body and shaft lengths match, but the motor does not fit correctly in the plastic; the "bumps" on the ends of the motor are 0.5mm and 1.1mm too long, and one of the bumps is just a little bit too wide (unsure if this is an issue). And, the metallic contacts are not in the same spots.
Photos and comparisons follow. My question is: have other people experienced this? Did I buy the wrong motor, or is 40 years too long to get a perfect replacement? I'm hoping I can file down the motor bumps to fit; have you done this? If necessary after I get it physically in place I may have to solder in a very short jumper wire to make the electrical connection.
I purchased a replacement motor and just went to swap it out…and it's not quite right. It's still a Bühler motor, and the body and shaft lengths match, but the motor does not fit correctly in the plastic; the "bumps" on the ends of the motor are 0.5mm and 1.1mm too long, and one of the bumps is just a little bit too wide (unsure if this is an issue). And, the metallic contacts are not in the same spots.
Photos and comparisons follow. My question is: have other people experienced this? Did I buy the wrong motor, or is 40 years too long to get a perfect replacement? I'm hoping I can file down the motor bumps to fit; have you done this? If necessary after I get it physically in place I may have to solder in a very short jumper wire to make the electrical connection.
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