Originally Posted by contagious
There is no contact piston to valve,did the math and checked with clay,over 100 thous on the exh and more on the int.The other seven cylinders and valves are clean ,no contact marks on pistons or valves.The Rocker geomertry need's to be checked very well as i'm the one that set it up as well,there was a little off center movment if i remember,but nothing off the tip.needs checking again for sure.Thanks for the help.!!
Correct valve train geometry is the geometry that produces the least amount of sweep on the valve tip.
It doesn't matter if it is centered on the valve or not. Set the pushrod length so the valve and rocker centerline form a 90 deg angle at 50% lift and you will be really close.
In order to put the roller in the center on any of mine the pushrod had to be way too long. They are usually offset toward the inside.