I am replacing the cylinder cover gasket on my 1976 Mercury 85hp. Since there is a possibility of water leakage around the spark plugs [again] should I use sealant on this gasket? If so, what sealant should I use? I think the factory originally installed the gaskets dry, but don't know for sure. The manual doesn't say anything about sealant, but I don't want to have a problem with water leaking around plugs again.<br /><br />Thanks, Mike