@Norton posted:The issue isn't max voltage rating but rather stall current. A 12v motor of similar construction will have a higher stall current. Also greater starting torque. Since Lionel used 12 and 15 volt Pittmans interchangably in their TMCC engines I am pretty sure its not an issue in their Legacy engines. For sure putting a 15v motor in an engine that came with a 12v one won't harm the engine. It just may not pull as cleanly from a stop with a string of cars.
Pete
I'll just use either a 12V or 15V Pittman, depending on what I have handy.
Back to the original topic.