It tells me the "Contact travel" on the rocker arm is far less than what I had expected. The contact on the valve is less than I expected but by not as much differance as the former.. That's a valuable drawing... too me ! I beg to differ on the value of the jig in determining the radius. That's why I bought one. I saw it used alot when I was a kid. I worked after school for an aircraft mechanic. He ground the rockers on those aircraft engines when he overhauled them. I just haven't quite figured out how it attaches yet. But I will when I have more time. I just.thought someone might have a picture. If you do. Please post. If not. $%× up.
