I have obtained a rather beat 254 from EBay for the purpose of powering a back-and-forth display in a publicly accessible location. Because of the back-and-forth operation I've made the decision to run it on DC. I got the original motor running with the help of a bridge rectifier, but when ran on track it became evident that the original motor is shorting out somewhere - I believe on the rotor assembly, which then shorts out through the gear sets. This has caused, in very short time, some pretty sever pitting of the driven-side wheels, high current draw, and overall slow and unreliable operation (doesn't always start without a push).
The back-and-forth operation needs to be reliable and slow, and instead of attempting to re-wind the original motor, or paying to have it re-wound professionally, I'm seriously considering re-working the mechanism to use a more readily-available 12 VDC motor assembly. Looking around the web I've located the following which seems to be a fit. I'm just curious if anyone here as attempted such an upgrade and if there's any advice out there for this project. Cheers!