Hank, I think that would happen to any train running around for an hour and a half! Although, I wonder what would happen to those wheels under excessive heat? (Besides melt) like would the ones with the holes heat up faster? Or would the hole less one heat up slower? I know what happens with pure acetone. But besides the point, if a fire occurs on my railroad (or any for that matter) It would not be caused by heated wheels, but by a overheated lightbulb.
Proud owner of Tomy/Plarail trains. 