Valve Cover Gasket Replacement
How to Replace a Valve Cover GasketWhen your engine is running, internal engine components are moving, shaking, and causing temperature changes throughout the entire engine. Consequently, all the moving parts need proper lubrication. Therefore, oil is pumped throughout the engine, and it is no surprise that oil is splashed around internally.As normal preventative maintenance, the motor oil level should be checked every time the fuel tank is filled. If you notice that you are adding oil more often than usual, you could be leaking oil from the engine. One of the most common components to leak is the engine’s valve cover.The valve cover is bolted to the top of the engine cylinder head. Its purpose is to allow access to cylinder head components such as valves, and the cam shaft on over head cam engines. Additionally, the cover prevents the oil used to lubricate the components from splashing and leaking from the engine.When the valve cover is installed, there is a gasket between the valve cover and the engine cylinder head. The gasket seals oil from leaking. However, over time the gasket can become dry, cracked or damaged from heat. As a result, motor oil can leak down the sides of the engine, onto the exhaust manifolds, and even onto the spark plugs and ignition wires. When this happens, the gasket needs replaced.If you find there is a leak, check to make sure the bolts that hold the cover to the cylinder head are tight. When checking, gently tighten the bolts. If they are over tightened, it can cause the gasket to break or compress away from the sealing area and create a larger leak.
Parts and Supplies needed to Replace a Valve Cover Gasket1 - New valve cover gasket2 - Protective clothing3 - Eye protection
Tools Needed to Complete this Job1 - Sockets and socket wrench2 - Scraper3 - Screw drivers4 - Shop rags
- Avoid allowing gasket material and dirt from getting into the engine
- Do not over tighten the valve cover
- Always check oil level every time the fuel is refilled