Chasing a moving rocker arm around with a screwdriver, a feeler gauge, and a box-end wrench is an exercise in frustration, plus it's messy. Go ahead and do it that way if you choose, just to be traditional, but it's pretty difficult to get a good adjustment. The difficulty usually crops up when the tip of the rocker arm gets worn concave, or the acceleration ramp on the cam wears out, and no matter how close you think you're getting with the clearance, the valves still rattle. Attempting a running adjustment on a hydraulic lifter is just foolish!
Jerry
Last edited by Hotrod Lincoln; 12/27/2007 8:14 PM.
