roller rocker valve adjustment?

[saxman]

I am adjusting my valves and have found TDC. I have the locking nuts with the allen screw in the center which came with the rockers. How tight should these locking nuts be? I am trying to loosen them so I can adjust the valve, and can't get them to budge. This is a rebuilt engine that was just put together. I do not want to force anything. Maybe my allen wrench needs to be longer for more leverage.

Thanks for the info....

 

[JWMcCrary]

Loosen the allen screw and adjust the rocker to where it needs to be. Then while holding the locknut with a wrench run the allen screw down until it's snug, then snug the locknut, it shouldn't move much. I've never had a problem using this method.