Got a 93 accord with 2.2liter 4cyl engine (160k miles) The valve cover gasket is leaking on the front side. it's been doing it a while slowly, but has now gotten bad enough to warrant replacing. There also appears to be just a little bit of oil on the spark plug wires where the wire meets the sparkplug. Question 1: do I need to use any gasket sealer, etc. on it? i've heard mixed opinions. If so, then why or why not? quetion 2: The spark plug gasket/o-ring you replace. Is that inside the valve cover or the one around the wire? how hard is this to replace if inside the valve cover? thanks for your help. cc:'ing your reply via email would be helpful also. -mike