Hello Everyone. I bought a postwar Lionel 736 locomotive at the Nashville Christmas show just a few weeks ago. I bought new brushes for it at the show, and went home to clean the motor and install the new brushes. It ran great, but I immediately noticed that the right side eccentric crank sleeve was missing. I ordered one and attempted to install it today, but the right side valve gear assembly is binding, and the screw that goes through the eccentric pin and sleeve will not stay tight, it immediately starts to loosen itself when I run the locomotive. Also, the crosshead hits the front part of the valve assembly, I think this is the root of the screw getting loose. Does this rod assembly need to be quartered, just like the wheels? I have tried several different positions for the valve gear to be in while the locomotive runs, but nothing works so far. I can even spin the wheels by hand, and the screw works its way loose pretty quick.
I would appreciate any guidance that you folks could give me.
