RE: YS FZ110 Break in problem
Walt,
When having a knurled metal back plate I like to use a nylon washer (found at OSH) in between the back plate and the thrust washer. I tighten the nuts as you do. I also check the nuts for tightness every few flights. Since I started doing this my thrust washers have really held up.
SooprDink,
I would check with Richard at YS parts and service. His number is (775) 267-9252.
Jimmy Skids