[quote Like everything else in our hobby, there is rarely an absolute right way. It usually involves a trade-off of some kind. In this case, the trade-off seems to involve centering the roller on the valve tip, which often does not lead to "perfect" valve train geometry. Due to the smaller contact patch with roller tip rockers ( verses scrub type rockers ), I personally am willing to sacrifice "some" geometry to be able to get the largest roller tip contact patch ( middle of valve stem).
This also helps in the valve stem wear dept.
On the down side I am probably sacrificing some area under the curve.
Sorry bud, correcting geometry (minimum amount of sweep) produces the least amount of lateral force and wear on the guides. You are sacrificing a whole lot more than you think.
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
