http://www.autozone.com/repair_info.htm <-- go here, put in your year, make, model, and I believe it's under routine maintenance / tune-up. Procedure is all there. Basically, you have to start with #1 @ TDC, adjust intake & exhaust, then roll to the next cylinder in the firing order, adjust, roll, adjust, roll... until all 6 intake & exhaust valves are adjusted. Part of what your post said makes me think I need to pull my valve covers and re-check mine when I get the time... might be adding my my valvetrain noise