Beat the heat. Your engine's number one enemy is overheating. It could happen because of several reasons, the most common of which is coolant leak. One of the usual places where leaks occur is around the thermostat housing, caused by a worn-out thermostat gasket. This part of the cooling system is prone to leaks because of the thermostat's function.It's basically a heat-sensing valve that expands and contracts automatically, depending on coolant temperature. Through time, it can get stuck in the expanded position because of corrosion, blocking the flow of coolant into the radiator.Extreme coolant temperatures then result in early wear of the thermostat gasket. Even if the thermostat does contract, the worn-out gasket will cause a major leak that can result in overheating. A defective, leaking gasket should be replaced immediately.Otherwise, you risk suffering engine overheating due to coolant loss. Gaskets abound here at Carparts.
• Offers high resistance against heat
• Made from high-quality rubber that resists deformation
• Provides a direct fit
What to Remember When Selecting a Thermostat Gasket
There are so many types and kinds of thermostat gaskets available in the market today. That's why buying the right gasket can be a little tricky and confusing. Many people end up getting the type or size that doesn't fit in their car. At the end of the day, it's a huge waste of time and money. Therefore, it is highly advisable to learn few things first about thermostat gaskets to avoid committing the same mistake.
Upon checking out thermostat gasket replacement parts, these are some of the basic things to learn. Try to find these attributes to make sure that you are getting a good gasket for your car.
Most thermostat gaskets are made from high-grade rubbers. These rubbers have several types such as:
- Silicone rubber
- High nitrile rubber
- EPDM or ethylene propylene, diene, monomer rubber, neoprene rubber
- Vitone rubber.
These synthetically-made rubbers are produced using an intrinsic procedure and technology. They are very different form ordinary rubbers for they can withstand really high temperature and extreme moisture. They also provide great heat and electric insulation.
Maximum temperature threshold
Inside the combustion engine, the average temperature before the thermostat opens up is usually around 220 to 225 degrees Fahrenheit. However, it's not the same for every car. For race cars, it's lower to prevent the engine form overheating fast. This constant condition inside the car's engine exposes the gasket in high temperature. A good thermostat gasket is geared to work against the odds; it should not melt, break, or wear easily. Standard gaskets have a maximum temperature of 350 degrees Fahrenheit, so you can start with that one.
Always get the best out of your money. It doesn't matter if you pay a bit more as long as you get a really durable one. The price tag for standard gaskets usually starts from $13. High-performance gaskets can go up to $20.
OEM replacement parts are usually designed to fit directly to a specific car type and model. In case you are not sure, you can always refer to your vehicle owner's manual. You also have the option to buy an aftermarket gasket that almost looks like the original one. Just always check the measurements to make sure that it fits your car.
Car Maintenance: Changing Your Thermostat Gasket.
When replacing the thermostat in your car, do not forget to install a new thermostat gasket. It is possible that this part is damaged as well due to the extreme pressure and temperature inside the engine. It is useless to put brand new coolant inside the thermostat if it would just all leak out because the gasket can no longer hold it inside. The gasket replacement is pretty much a very easy task especially if you are already familiar with your car's parts and functions and if you always do the repairs on your own.
Difficulty level: Easy
Here are the tools that you need:
- Flat tip screwdriver
- Socket wrench
- Socket set
- Ratchet wrench
- Drain pan
- Gasket scraper
Step1: See to it that your car is in park or neutral shift before working to prevent the car form moving or rolling. Set the emergency brakes as well for added safety measure. Wear your most comfortable work clothes, hand gloves, and safety glasses to ensure protection.
Step 2: Open the hood of your car and cut off the battery. You may use your socket and wrench. Place the battery in a clean and dry area.
Step 3: Place a drain pan under the radiator drain valve. Start flushing out the old coolant by slowly twisting the radiator cap clockwise. If you're having a hard time removing the radiator cap, you may use your pliers.
Step 4: Pull out the upper radiator hose until you find the thermostat housing. You can remove the hose by using a flat tip screwdriver. Once it's out, remove the clamp that holds the thermostat to the housing. You also need to remove the two bolts that hold the thermostat. Use a socket and a ratchet to unbolt them.
Step 5: Take away the thermostat from the housing. Get the gasket scraper and scratch off the entire old gasket residue. Continue using small circular motions until you see the metal part. Clean the housing using a carburetor cleaner and a rag.
Step 6: Put the thermostat back to the housing and place the new gasket on the opening. Make sure that the screw holes are well aligned. Replace the bolts.
Step 7: Attach the thermostat housing once again to the vehicle. Put back the clamp and the radiator hose.
Step 8: Close the radiator drain valve and refill the radiator with water and the new coolant. Put back the cap. Reconnect your car's battery. Close the hood and get ready to start the engine to check if there is leak.