@CALNNC posted:Was there some kind of plastic or manufacturing defect in the Lionel 2023 and similar series of ALCO diesels where they get a hump between the cab top and the fan? I found some flat and some bulging, a couple that looked like it was about to pull the roof from the sides. Is that motor heat causing that?
I recall reading posts about this condition and it is heat related causing the shell to warp.