Paul I believe the washers are not needed due to wear, I think there is about 20 different shaped cams out there all tried by Victa to try and solve the governor problem, some may have been successful others not so good. So far I have never heard of anyone offering a successful fix on the governor problems, if anybody can offer any advice I would love to take it on board and try it. I have repaired over 150 of them and they work fine once I modify them
