How to Install a New Valve Cover Gasket

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Tips for Installing a New Valve Cover Gasket....5

From the o-ring to silicon sealant, learn how to install a new valve cover gasket with tips from our expert mechanic in this free auto-repair video.

Part of the Video Series: How to Replace a Valve Cover Gasket
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Video Transcript

In this segment we are going to cover installing a valve cover gasket. We have already gotten the valve cover itself clean and prepared, ready to go for the gasket. To install the new gasket there is basically two parts. The outer ring gaskets which shields the engine oil into head assembly itself and then the four seals that seal the spark plug tubes from external leaking into the tubes where the spark plug boots go and the spark plugs reside. A tip and it is just kind of a personal preference from experience, it is not necessary but when you install the o-rings and the rubber seals, I always put a little bit of silicone in my fingers and just kind of rub it around the seal itself. Prior to installing an o-ring, just a personal preference and something I do out of experience, a little tip. Is I take the o-ring and I use some of the silicone sealant and I basically just coat all of the o-ring thoroughly with a light coat of sealant. This provides a little bit of lubrication to ensure that the ring when it is being compressed when the valve cover is being installed will be able to seat correctly and smash out. It allows it to move freely and also as the silicone sets up it will provide a better seal. So i just a little bit of the silicone adhesive or sealant in my hands and quickly and lightly rotate the o-ring through my fingers and try to get a light, even coat all the way around it. Then they are just simply laid into their grooves one at a time. Rub your finger around it and make sure that make sure that it fits into the slot and fits down in there smooth. Just one at a time go through. You have a light coating, apply the seal assuring it is setting in there correctly and all the way down. These are a compressions type of seal basically. As the valve cover is being tightened down that rubber o-ring is going to be squished between two metal surfaces and that is going to cause it to expand and seal. It is the same principle that the outer valve cover gasket uses for sealing. It is just a large rubber gasket that fits into those grooves and when the valve cover gasket is tightened down and compressed to the engine head it forces that to squeeze out and expand and that fills the groove tightly and creates a good seal on both surfaces. Please stay and watch our next segment on "Installing a Valve Cover Gasket, Part Two".


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