I recently purchased an operator class 2331 which was in bad need of cleaning and lubrication. She ran but sporadically . The engine was filthy with old congealed grease and had obviously been heavily over lubricated. I figured a good overhaul was all she needed. I gave the commutator, brushes and brush wells a good bath in CRC plastic safe solvent and cleaned out the grooves in the commutator segments. I took the motors apart and cleaned out a ton of old gunk and replaced it with Red and Tacky. While giving the E-unit a bath as well I noticed that the drum had one of its pins which insert into the body of the E-unit housing was broken so I replaced it with a new drum. I only gave the E-unit fingers a superficial inspection but they looked clean and seemed to be making good contact with the drum. After reassembling everything and giving the engine power the lamps came on and and the E-unit plunger and drum cycled perfectly but the motors would not engage. I checked every connection and everything is perfectly secure. No breaks in the wires or unsoldered connections. My question is this, would bad E-unit fingers cause the motors not to work? If so I'll just replace the fingers but before doing that I would like to know if there is some other area I should troubleshoot. Any assistance will be greatly appreciated.
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