OK, well i got an engine off ebay and well it ran the first 2 days fine, and great, then well my luck it stopped working =(. Anyway i took it apart and found the problem. ON the motor is a top plate where it spins, thats where the 2 magnets touch this plate and i found it broke in 2 places, now has anyone repaired this piece before, and what would u reccomend so that it stays in place? I tried putting it back in place, and well, ran it around the track and half way it fell apart again. There should be a picture of it, if i did it right. thanks.