hi, no switch on the bottom. i tried to send a picture and it says it is to big to load, i took it to a train shop and the guy says it looks ok. any  suggestions?

hi joe, i am writing u back about the older f3 williams engine i have with no reverse. i took the shell off and it has 2 engines witha dome type metal cylinder type in the middle with a chip in the middle,that i could read the word india on it. this is a older engine with no circuit boards or sound. thanks,don.

HI, I HAD PURCHASED 3 SETS OF WILLIAMS F3 DIESELS FROM A LADY THAT WAS SELLING HER LATE HUSBANDS TRAINS. THE ENGINES RUN FINE AND THE PROBLEM THERE IS NO REVERSE. IS THIS THE WAY THEY MADE THEM YEARS AGO OR DID HE CHANGE SOMETHING ON THEM???DONNIE