Long Winded Old Fart
I took 4 RDC's & I'm using them for Passenger cars. 2 of them were originally powered w/rubberband motors. All have metal wheels w/insulated axles on 1 side. When I run 2 engines on that track I get a dead short. When I run one engine nothing shorts. I put all of the insulated wheels on the same side of all of the cars at the same time. I have the trucks marked so they won't be changed from one side to the other. Can you give me some idea's why these short.