manual switch question

[LionelPortland]

So, I have a really badly corroded Lionel 721 manual switch- I was able to get most of the rust off of the operating rails, but the guts of the thing that make the switch function are really rusty. I was wondering if I can replace the guts with the like portion of the 042 manual switch? The parts look similar, with the exception that the 042 has a wire soldered to the track, and the 721 doesn't...

http://postimg.org/image/69ie2yqmf/

http://postimg.org/image/fikkd2zif/

[rtraincollector]

I would give it a try as like you looks like it would work

[servoguy]

The manual controls will interchange.  However, the screws are different sizes, so you will have to drill out the holes on the controller from the 042 switch.  If you want the lamp for the lantern, you must solder the wire to the center rail.

[LionelPortland]

Thanks, that's what I was thinking with the wiring. The switch still functions in spite of the rust I can't clean out, so I think I'll see if I can live with it...

[TrainLarry]

All the rust can be removed with little fuss using the electrolytic rust removal procedure. http://www.instructables.com/id/Electrolytic-Rust-Removal-aka-Magic/

I have used this procedure on track and tools, and can vouch that the procedure works very well. Just lay the switch in the solution, connect the electric source to the switch and the anode material, and walk away. The solution will start to bubble, and the rust will come off. In an hour or so, the rust will be gone. Remove the switch, rinse under running water and dry. You now have a rust-free switch that will operate.

As the solution is basically a laundry detergent, disposing of it down the drain is no problem. It is not hazardous in the least.

Larry

[LionelPortland]

Thanks, that's incredible!