I'm working on an old Triumph motor built for dirt track racing. It was made up from replacement cases and stamped with 0120, the same numbers that appear on the frame, which is a purpose made dirt track nickel plated frame of unknown manufacture(as of yet, anyway. Pics of that to follow later)
This whole bike was gifted to a local man while he was in Costa Rica.
Who could have guessed a dirt track Triumph would be living there? He also scored a '68 TR6, also in pieces.
I'm bugged by the fact that there are fine thread case screws in the timing side, and coarse thread screws in the primary. If that means what I think, then this really is a bastard motor. The primary side case has the multiple little Triumph stamps from the late sixties.
But, horrors upon horrors, this is what I found when I popped off the gearbox covers.
I've seen rust on gears and such before, but nothing this bad. In your opinion, is this gearbox a total write-off?
Quite frankly, I was lucky to get this apart without breaking anything.