RonA
Active member
- Joined
- Feb 26, 2008
- Messages
- 11,082
Sounds like the position of the valves in relation to the piston has a large margine of error so the ideal way would be to actuall make a spotting tool that is nice fit in the valve guide and drill a small spot through each gude into the top of the piston. then indicate the spots and cut the valve reliefs one at a time. Do they really vary so much that you can't just mark one piston, figure out the pattern, make a program, and do them all the same?