So I looked around the shop and found a 1/16: O-ring that was the right length and that cured the drawer problem. Next I cleaned the rails on the drawer and tracking mechanisms and applied a little De-Oxit. Lastly I cleaned the lens and plugged it back in.

It works just fine now. It may not live forever but It sure sounds sweet to me. It's funny how each time I fiddle with something electro-mechanical I learn a bit more about it. The mechanical I can usually figure out but the electronic end still leaves me wondering

Maybe someday I'll have a clue.