As mentioned before I have a new to me Lionel 2023 that I got to running well except for no reverse. The engine has a vertically mounted motor with worm gear and all gears show very little wear. The E unit cycles through the three positions but has no operation in reverse, just acts like neutral in reverse maybe indicating the E unit is okay.
I have cleaned the E unit and the drum is clean and rotates well and all wipers appear to be making good contact. All wiring to the motor and E unit are as shown on the wiring diagram. I have gotten many E units to work by cleaning on numerous occasions.
I wonder if the motor has a bad winding perhaps related to the reverse.
Any suggestions will be appreciated.
Charlie