The other way takes a lot more time and you'll need a chart that shows which valves to adjust when. You start by turning the engine until piston number 1 is at top dead center on the compression stroke, then the chart will tell which exhaust and which intake valve to adjust. Spin the push rod with your fingers until you feel a slight drag, then, as I recall, turn the nut one more turn. You may still be able to press the rocker arm and push rod down a little because there's a spring inside each lifter. There just won't be any oil in them without the engine running.
Next, you turn the engine 1/4 turn, then adjust the next two valves. You might be able to figure out which valves to do by feel if you don't have the chart. The chart will be in any GM service manual from the '60s and '70s.
Saturday, May 26th, 2012 AT 5:49 AM