1. Valves can be set on a hot or cold engine. A cold engine is a lot more comfortable to work on. Major camshaft manufacturers recommend setting valves cold, to avoid erroneous adjustments on lifters that may be "pumped up" If you are setting valves on a fresh engine that has not been run, everything should be well lubricated before you begin.
2. Remove both valve covers and remove the spark plugs to make the engine easier to turn over. Also, If you are setting valves on all cylinders, it is generally easier and less confusing to just loosen all of the rocker arm adjustment nuts before you begin. This also allows for all of the internal lifter plungers to return to their "home" position.
3. Using a long handled ratchet or breaker bar attached to the crank bolt, turn the engine over in the clockwise direction.
1) Tighten the rocker until you can roll the pushrod between your thumb and forefinger with the slightest bit of resistance.
2) At this point tighten between an additional quarter to half of a turn.
4) Re-install your valve covers and your valve adjustment procedure is finished
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