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Mercury Villager Valve Cover Gasket

When Your Mercury Villager Valve Cover Gasket Goes Bad

The valve cover gasket serves as a tight seal that protects the valve train from leaks. It is fitted between the valve cover and the cylinder head in order to prevent oil from seeping out. This component is very important in the efficient operation of your Mercury Villager's engine. However, a valve cover gasket is not exempted from wear and tear. Since it is commonly made from rubber, this gasket tends to fail over time. It may also be damaged or broken due to engine pressure. In case of a Mercury Villager valve cover gasket failure, here are the possible causes that you might want to look at:


As mentioned earlier, your gasket is susceptible to breakage due to pressure. What usually happens is that the Positive Crankcase Ventilation (PCV) valve serves as a vent for excess pressure in the engine and valve cover. However, when the PCV valve is searching for new areas to release the excess pressure, the valve cover gasket suffers and gets blown out. Cracks form on the gasket, which leads to leakage. Such damage would definitely require you to change your Villager's valve cover gasket.


First, you need to make sure that the spilled oil you are seeing is really due to a leak and not just a seep. Seepage is a minor issue that would not significantly affect the oil level in your vehicle and would not cause any serious trouble. It commonly occurs after your Villager has reached 30,000 miles. You may also notice that oil seep would eventually accumulate dust and dirt, but this is still not serious enough to necessitate valve cover gasket replacement.

Meanwhile, you would know that you have a leaking gasket if oil has started to form a puddle on the ground and continues to trickle while your Villager is driven. A leak is usually accompanied by smoke and a burning odor, which are due to oil that has gone straight to the exhaust manifold. It can also drain too much oil, which could drastically change the oil level and possibly cause serious engine damage. You would have to replace your Villager's valve cover gasket immediately if this is the case.

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  • Tips on Keeping Your Mercury Villager Valve Cover Gasket in Best Shape

    Your Mercury Villager valve cover gasket is vital in the operation of your engine. It is tasked to strengthen the seal created by the valve cover in order to protect the engine and the cylinder head from leaks. However, it must be considered that this gasket is commonly made from rubber. It has a high tendency to wear and get damaged especially because it deals closely with so much engine pressure. A worn-out gasket can cause engine trouble and more expensive repair expenses. So to ensure that it is always in best shape and is capable of providing that tight seal, follow these tips:

    Schedule its replacement.

    It is recommended that you change the valve cover gasket of your Mercury Villager if it has already been driven for more than 100,000 miles. You may find this gasket to have shrunk or hardened, which would pretty much verify the need for a replacement. Remember to include this in your maintenance routine, so you can keep your gasket up to date. It is best to replace the gasket when changing oil, too.

    Clean the valve cover.

    Before putting a new valve cover gasket, examine the valve cover. Most likely, you would find this part with accumulated dust and dirt. Don't worry too much, though. This does not necessarily mean that your gasket is in trouble. It usually happens due to oil that has seeped from the valve cover, which is a normal occurrence. Scraping off the hardened dirt with a chisel or a plastic putty knife would be effective enough.

    Know when to replace it.

    Sometimes, your Villager's valve cover gasket can prematurely fail. Excess pressure from the engine tends to cause damage on the gasket by blowing it out, which would result in leaks later on. This would require you to change the gasket.

    Observe the proper way of putting on a new gasket.

    Make sure that you have disconnected and removed the components that might get affected with your gasket replacement. In removing the bolts, you can tap around the valve cover using a soft-laced mallet. Never use metal tools because they could damage the aluminum cylinder head and cause permanent leaks.