If you own a Subaru or are in the market for one, it’s important to know about the head gaskets and their function in the engine. The head gasket plays a crucial role in the engine’s performance and longevity. In this article, we’ll cover everything you need to know about head gaskets, including how many head gaskets a Subaru has, when they need to be replaced, and how to prevent head gasket failure.
Importance of Head Gaskets
A head gasket is a mechanical seal that sits between the engine block and cylinder head in a car’s engine. Its primary function is to ensure that the engine’s combustion chamber remains sealed, preventing any fluids from leaking out. The head gasket also helps to keep the engine oil and coolant separate.
The importance of the head gasket cannot be overstated. A faulty head gasket can cause serious issues with the engine’s performance, including overheating, loss of power, and even engine failure. It’s essential to keep the head gasket in good condition to ensure that your car runs smoothly and to prevent costly repairs down the line.
Function of Head Gaskets in Subaru Vehicles
Subaru vehicles have a unique design that includes two horizontally-opposed cylinder banks. This means that the engine has two separate heads, each of which has its own head gasket. The head gaskets are critical components in the Subaru engine, as they are responsible for sealing the combustion chamber and maintaining the engine’s overall integrity.
The head gaskets in Subaru vehicles are made of multi-layered steel (MLS) or composite materials. These materials are designed to withstand high temperatures and pressures, ensuring that the gasket remains intact even under extreme conditions.
How Many Head Gaskets Does a Subaru Have?
As mentioned earlier, Subaru vehicles have two cylinder banks and two separate heads. This means that a Subaru engine has two head gaskets, one for each head. It’s important to note that not all cars have two head gaskets, and the number can vary depending on the make and model.
When Do Head Gaskets Need to be Replaced?
Head gaskets are built to last, but they can fail at any time due to a variety of reasons. One of the most common causes of head gasket failure is overheating, which can cause the gasket to warp or crack. Other factors that can cause head gasket failure include poor maintenance, engine wear and tear, and improper installation.
If you suspect that your head gasket may be failing, it’s important to have it inspected by a professional mechanic as soon as possible. Signs of head gasket failure include:
- White smoke coming from the exhaust pipe
- Milky or discolored engine oil
- Loss of power
- Coolant leaks
Preventing Head Gasket Failure
Preventing head gasket failure is key to keeping your Subaru running smoothly and extending its lifespan. Regular maintenance is essential, including oil changes, coolant flushes, and keeping the engine at the correct operating temperature. It’s also important to use high-quality fluids and to have your car inspected by a professional mechanic regularly.
If you’re purchasing a used Subaru, it’s important to have the head gaskets inspected before you buy. A pre-purchase inspection can help you identify any potential issues with the engine, including head gasket failure.
Frequently Asked Questions
How long do Subaru head gaskets last?
Subaru head gaskets are built to last, but they can fail at any time due to a variety of factors. With proper maintenance and care, you can expect your Subaru head gaskets to last for many years.
How much does it cost to replace head gaskets in a Subaru?
The cost of replacing head gaskets in a Subaru can vary depending on the make and model of the car and the extent of the damage. On average, you can expect to pay between $1,500 and $3,000 for head gasket replacement.
Can I drive with a bad head gasket?
It’s not recommended to drive with a bad head gasket, as it can cause serious damage to the engine and other components of the car. If you suspect that your head gasket may be failing, it’s important to have it inspected by a professional mechanic as soon as possible.
The head gaskets in your Subaru play a vital role in keeping your engine running smoothly and preventing costly repairs down the line. By understanding how many head gaskets a Subaru has, how they function, and how to prevent failure, you can extend the lifespan of your car and ensure that it performs at its best for years to come.