JohnEvans
Titanium
- Joined
- Sep 23, 2009
- Location
- Phoenix,AZ
A friend of mine that works on HD motorcycles and I were having a discussion on valve guide material for a old flat head VL Harley. Original was CI and my thoughts were to use the same because of next to none lubrication in that area. The only lube that gets there would be vapor maybe some mist coming up around the valve lifter. He was thinking some form of bronze ie manganese or silicon which I understand they use on the modern engines. I'm thinking with such minimal lube sooner or later the bronze would gall and stick the valve. But not having any experience with either of those bronzes running pretty much dry I don't know. I've made plenty of CI guides for old British bikes with no issue but they all were OHV with reasonable lube available. Anyone with experience using these bronzes in this application with pretty much zero lube?
TIA John
TIA John