[Russ/40]

The fiber thrust washer on the bottom gets well lubricated, and the load on it is negligible. It is much like the fiber washers found in generators, that never seem to get any wear. The flat washer under the cam lock washer helps keep the point cam from moving when tightening the cam screw. At least that is my feelings on the matter. I have observed that the fiber washers at the bottom are always too thick. I use one like the kind found under the top plate, for the lower thrust as well because they are closer to the thickness needed. I adjust up/down thrust, if needed, by honing the top surface of the bottom collar enough to set thrust and allignment of the bottom pin. Works for me, although time consuming to get it right.