small block chevy hyd. valve adjustment?

Question

how do you adjust the hyd. valves when motor is running?? thanks, jerry swain

Answer 1

The adjustment is a mess if you don't have the clips that go on the rocker arms to stop the oil from splattering all over the place.

If you want to try it without the clips, then you simply use a socket on each rocker lock nut and back the nut off until the valve starts to click, then tighten the nut back down until the rocker stops clicking then turn it an additional 1/2 turn.

Its much easier to adjust the valves to zero lash without the engine running. to do that, follow the adjustment procedure in any Chilton or Haynes manual to put the engine at either TDC or BDC and adjust the valves in the sequence that is specified. Zero lash essentially means you can't move the pushrod up or down when the rocker is tightend down to the point where all freeplay is removed.

I'd recommend duing the zero lash adjustment rather than adjusting them with the engine running
hope that helps

Answer 2

that's puzzling to discover 0 clearance even as the lifters are not any more pumped up. it truly is how I actually have continuously lashed small block chevys, even with the actual undeniable actuality that it may get messy. get rid of one million valve hide, start up engine. Tighten the first rocker nut till the push rod stops spinning lower than the rocker. Then decrease backpedal a million/4-a million/2 turn. Repeat for each and each of the others. This works nicely with new valve practice factors to boot to boot used parts. the downside is oil would drip on warm headers.