Debi,

It is a very simple job, but tedious. I will give you a synopsis on how it is done and what tools you need.

Tools:
2 14mm open end wrenches, a 27mm or 1 1/8" deep socket wrench and ratchet, and 4 feeler gages .003", .005" .013" and .015". There is a special set of wrenches available(~$75) but they are not necessary. You also need a general set of tools to remove the valve cover.

Procedure:
Turn crankshaft until one of the camshaft lobes is 180 degrees (lobe pointing up) from the position where it fully opens a valve. Then determine if this is the intake or exhaust valve. You can tell which valve it is by the location of the valve that is closest to the intake or exhaust manifold. If it is the intake valve use the .003" and .005" feeler gages, if exhaust valve use .013" and .015" gages. Intake and exhaust are adjusted same way, just using the different size gages. Check with your 2 gages between the cam lobe and the cam follower to see if one will go and the other one won't. If this is true, this valve won't need adjusting. Usually the valves will be tight because of the valve wearing into the seat. Loosen the acorn nut and lock nut on the valve stem and adjust the acorn nut until the gages go and don't go. Then hold the acorn nut and tighten the lock nut securely. Then recheck with the gages. You will probably have to re-adjust a few times until you get the feel of it. Make sure you tighten the lock nut as tight as possible and recheck with gages.
Now turn the crankshaft until the another valve is in the 180 degrees position. Once you find how far to turn the crankshaft it will be the same amount each time. I think on my rachet it is 16 clicks actually 4 clicks 4 turns.
Now do the next valve the same way. Keep track of the cylinder number and which valve was done so you know when you are finished.
Other mechanics may do it differently but this way works for me.
Check for cam timing, not more than 3 degrees on the vibration damper on crankshaft when cam timing marks are aligned and check the chain tensioner to make sure it keeps the chain tight. Install a new valve cover gasket and reinstall the valve cover.
You should be able to do this job in 2 to 3 hours. Any questions e-mail me.

P E H