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The side engine cover, more commonly known as valve cover, is a metal protective cover on the top of the engine that covers the valve rocker arms and lifters. The valve cover is sealed to the cylinder head with a gasket that is usually made of reinforced rubber or cork. It is bolted down along its perimeter, and torqued to a manufacturer’s specifications. If the valve cover gasket is cracked or blown out, oil will leak to the outside of the engine.
A leaking valve cover gasket should be noticed during any vehicle service, including oil changes. If the valve cover gasket is noted to be leaking, have one of our expert mechanics replace it.
A leaking valve cover gasket is little more than an annoyance unless the leak is large. A small leak can be left unrepaired as long as oil levels are closely monitored. If the leak is large or oil is contaminating other components, have the engine side cover gasket replaced.