my wife was at a garage sale sat. and picked me up a lionel 8351 alco. its blue and silver. she doesnt know anything about this stuff. she gave $5 for it and i need some replacement parts. i need to know is there someplace that has a breakdown of engines, so i can order some parts, or...

curious if there was a write up or anyone knew how to replace the gear the worm gear on the armature touches when it strips. this is the gear in the truck on a shaft that drives the rest of the gears. i dunno any other way to explain it.