Recently have been approached by a client to see how to improve the performance of a fleet of four Bachmann 70 ton switchers. His complaint is they are poor performers and are very noisy. Looking on line, the following discussions were found: https://model-railroad-hobbyist.com/node/9460 & http://cs.trains.com/mrr/f/88/p/276365/3156031.aspx It seems to be a common problem. The gears on …
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