Reusing lifters

Facing a lifter on a glass plate is the wrong way to do it (if there is a right way?). You ideally want a convex lifter face (bowing out) so when you place two lifters face to face, you can rock them a little. The radius the lifters are ground on is like 52" and the cam lobe has the same matching rake to it so the lifter is pretty well matched to the lobe and is forced to turn whenever the cam rolls on it. This is how the lifters last so long, they have to rotate (one vid shows you to mark the edge of the lifter with white out and watch for it to turn on cranking. If its not turning shut it down and find out why.). sometimes on a used lifter you'll see the wear pattern as a ring around an almost untouched center. you have to look at your lifter when its sitting on the lobe to see where the pattern is. If its flat (or in my slants case, concave!) reface to convex or try another lifter. So many books show you to place 2 lifters face to face and see light. That grinder rotates the lifter at a very slight angle to the stone and creates a peak unless the ston e is cast with a slight concave face to get your radius. It is a specialized machine in that video. $25 cam and lifters? Go for it! BTDT