adjust you valves

 

[font="Arial"]Hi there!
Did you figure out the rocker dilemma?
You failed to mention if you had screw in studs or pressed in?
Or if you checked your press in type for working themselves out.....
If you have pressed in type, sometimes the lifter is blamed for a stud extracting itself over time, from combo
pushrod/valvespring pressure. This is why they screw in studs sell well.

Take a small micormeter of any style and use the "tail" to measure depth of the rocker studs
generally a long metal ruler laid across all studs at once, gives you a quick look at which studs
are pulling out, by the irreguliar gap at the bottom of the ruler.

 

Lifters are not that expensive. It would be silly to take them apart and clean them. Replace all the lifters while you have the manifold off. It would be a shame to try and clean them and go through all that work to find out it didn't work the way you wished it had. I would however, adjust your valves first while the engine is running with an old valve cover cut out. Cut just a slot about two inches the length of the cover making sure you leave enough over the pushrods to deflect the oil from squirting out.