Kevin,
Frank is correct. Reverse the two motor wires on the offending loco.
Rich
Alton Junction
Usually, the right front truck,picks up the positive + side of DC voltage,,so you probably have your layout wired so that rail is negative,like A being + and B being -,,,If it's the F-7 that is the one,that does that ,you'll have to reverse the leads at the motor,,,,,if it is the B-unit try turning it 180 degrees and back on the track..
That's one very good reason why I use,N&S, rather than A&B when doing wiring...
Cheers,
Frank
I thought I would be smart so today I decided to re wire my early Athearn F-7 A and B units. I ran wires from the positive side of the trucks to the top of the motor where the copper is and I ran a wire from the negative side to the bottom copper piece that meets the chassy. Both locomotives run fine except now I cannot get them to go in the same direction. Can someone please tell me where I may have gone wrong? The Locomotives are DC with no DCC.
Kevin
Can't stop working on the railroad!