Quote:
Can someone in a nutshell explain how to adjust valve lash.
adj each rocker arm when its cam lobe is on the cam base circle (several methods to do this). eng off/plugs out/breaker bar/1&1/4" socket on crank bolt. hand turn it to reach each adjusting point. If the spec is for example .020" adj it to where a .019" feeler gauge has NO drag and a .021" gauge has a SLIGHT drag. then start the eng & when it is warmed up (or after a 20-30 min 2500 breakin) then shut it off & pull the plugs and repeat the above. Some adj them while running, I do not. If the cam gives a cold and a hot spec(s) then go w that. If this is a new cam/lifter(s) breakin I'd adj the valves (cold) then take off the rocker shafts and regoop the lobe/lifter bottoms w the rocker screw adjustment untouched as alot of hand turning will wipe the goop off & with this much $$$ invested it's not the time to take shortcuts 
Last edited by RapidRobert; 01/27/10 10:57 PM.
