Hey there, VERY NEW to the hobby of trains… I picked up a decent set off Kijiji last spring, JUST got to it weeks back… HAD a loop working… Redid it to include some turn offs, worked well… Decided to go bigger and having issues now… Seems ALL my track is joined well together BUT have two areas that short out on either side of the track feeding the power and NO clue why…
IF I push on the area of track I lose power at the light dims green and some sparks…
Sounds to me llike you have a reverse loop, think of a tear drop with the train going up one side and coming back the other to the tip, It takes special wiring to do this because what you have done is connect the two sides of your current to the same rail.
I have an Atlas track book that tells how to do it, there are other books too. Since I have avooided having one, I’m not good at explaining the method. (Electronics is my weakness.)
To get your trains to run again, take out each new sectionn you have put in until they work. That will get you a temporary fix until you undderstand and get the necessary electronic needs.
Years ago, I had the reputation of finding obscure problems in software design reviews. Someone asked me how I did it. It was simple, really. Every mistake I find is one I’ve made many myself times before.
Yes, my first guess is also an inadvertent reverse loop.
A lot of guessing is going to be done until we can see a track plan.
Posting pictures in this forum is unlike any other forum I belong to. You have to follow the instructions, or you might be the only one that can see the picture.
A circuit tester can come in handy to track down electrical faults. The light bulb type can work to test for open circuit, less easy for a short circuit.
If you have a multimeter you can use the resistance setting to test for open or closed circuit.
Best advice is to take apart and remove the last thing you did before you had your problems. That will at least tell you where to start looking for the fault.
It will not be YOUR track plan but given the presence of a short circuit and possibly being a return loop, have a read of the following thread on the Your Model Railway site
I’d suggest working backwards. If the last thing you added was a turnout, remove that and replace it with a straight track and see if the layout now runs OK. If not, remove the next thing you added. Keep doing until you find what change caused the problem.
Note that even if you don’t have a reverse loop, depending on the brand of track/turnouts you’re using, you may still have to add a plastic insulated rail joiner in order to avoid a short circuit. Some turnouts are “power routing” and can cause a problem that one or two insulated joiners can solve.
BTW if you only have one place where power is connected to the track, you probably will need to add more as you expand the layout.