So I have an old New York central flyer (about 25 years old or so) that has always worked fine until recently, it derailed and ever since then the train struggles to move when powered, and the transformer light (cw-80) blinks when the speed is above 40 and the train never gains much speed beforehand. I replaced the motor thinking that the motor must have burnt out but that didnt fix it. The train runs even worse on the opposite side of the track connected to the transformer. I'm not sure if there is a problem with the transformer or not, if anyone knows what the problem is please help.
Welcome to the forum!
It sounds like the transformer is bad. Try another transformer if you have one. If you have a Lionel dealer in your area, bring it to them and let them check it out.
The train slowing down on the far side of the layout is a classic example of dirty track and/or poor connections between track sections. Take the tracks apart and clean the rails with a ScotchBrite pad to get off any dirt, then wipe them down with a rag dipped in Naphtha until they are clean. Next, polish the pins in the end of the tracks with the ScotchBrite pad. Make sure the pins are a tight fit in the track; crimp the ends of the rails with a needle-nose pliers if necessary.
If you have a large layout, you may need to add extra power wires from the transformer to the far side of the layout to compensate for any voltage drop through the rails.
Larry
Ok thanks for the information.