Smoke Unit Wiring On A Lionel 2025

Classic Toy Trains Forum
1

Hello All:

My grandson noted to me yesterday how my engine was not puffing. I took it apart and found the 2 wires from the smoke unit broken off of their connection, which I think is on the E unit. The smoke unit appears to be a new liquid unit and not the old pill one. Do both wires get soldered to the E unit? If possible, explain the wire placement of such. Also, are parts available to rebuild these E units, cycling of such was inconsistent, or would just a clean up with alcohol sufice?

Thanks: Michael

2

Try this link at Olsen’s trains. The manual has a complete wiring diagram that should tell you what you need to know to reconnect the smoke unit:

http://pictures.olsenstoy.com/2025-52.htm

Alcohol will normally clean up an e-unit, but tuner cleaner is better still.

3

Traditional smoke generators are connected to the track voltage. This usually involves a connection to the locomotive frame, which is connected to the outside rails, and one to the terminal on the e-unit that is itself connected to the pickup.

4

I think you should trace the wiring. The smoker may be grounded where it is attached to the frame. The 2nd wire may go to the headlight.