Not Ranked
Fred;
Just pull the valve covers, and look, if a rocker arm has loosened up enough to cause trouble it should be obious. If you don't find anything you think is wrong you will need to check the valve adjustment on each one. To check valve clearnce, take off the dist. cap and note at witch plug wire the rotor is pointing at, both push rods on that cyl. should be snug. Turn the engine enough so the rotor points to the next plug wire then check those rockers, do this for all 8 cyls. If you find 1 that is loose tighten the nut in the center if the rocker until you can by takeing the push rod between thum & fore finger and roate it while tightening the adjuster nut until you can feel some drag on the push rod, you will be able to feel if the push rod is bent. If it turns smooth without any wobble is should be stright, tighten it about 3/4-1 turn more. All this is asumeing you have hyd. lifters.
Poorboy
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