I talked to the comp cams tech guy. He said the preload travel is actually .150 and not .125 as the instruction sheet says. He also said when adjusting the valves the preload should be .100. And he said to subtract .050 to get the correct pushrod length using the method I am using. As far as the pattern on the valve tip some say you want it in the middle of the valve and some say you want to smallest sweep pattern even if it's not in the middle. I noticed that when the pattern is in the middle of the valve and then I adjust the checking push rod longer in .050 intervals the pattern gets narrower as the pattern moves out towards the exhaust side of the engine. Just curious how some of you professionals do it. I suppose I could put a .050 feeler gage between the valve and the rocker and that would be the same thing and I wouldn't need to subtract .050.
__________________
Tim Corcoran
|