351cougar

I just bought a set of roller rockers from jegs, they are 1.7's and they are incredibly noisy, I took the valve cover back off and when the valve in not compressed, there is about 1/16th of an inch between the roller on the tip of the rocker and the top of the valve, my first thought was that the lifters were not pumping up, but there is plenty of oil in the top of the cylinder heads, wouldn't there be a lack of oil if they were not pumping up??

PX429

explain the highlighted part a little more please. you took off the valve cover when "all" the valves are decompressed??

92hatchLX

Are you heads pedestal or stud? Did you order the right roller rockers for your heads? Isn't there supposed to be 0 valvelash?

351cougar

I took the valve cover off and checked the lash between all the valves when the valves were decompressed (put a bar on the front of the engine and turned it manually to check them) there was about 1/16 clearence. the heads are pedistle mounts, and the rockers are nonadjustable