I have embarked on a project to bring back to life my first Lionel train from 1952. The e-unit was shot, so I purchased a rebuilt unit. The train saw many years of operation and the rollers where worn, so I purchased a new set. I have been testing things along the way rather than waiting to the end so I can isolate issues that may arise.
I CANNOT get beyond a short that occurs in the trailing truck. I am using the original screws with insulating washers and the insulating pad between the roller assembly and the body of the truck.
Would very much appreciate any advise on how to determine where the short is and how to correct it.