What does a head gasket do?

The head gasket in effect seals the cylinder head to the cylinder block of the car. It ensures that pressure inside the cylinder chambers stays optimal. It also prevents oil or water leaks from occurring there where the water and oil channels of the cylinder head and block meet. The part is therefore an extremely important part of the engine as it can make the difference between an engine running well, or badly.

How do you know there is something wrong with the Head Gasket?

*When the 'Check Engine' light is on.
*When the engine doesn't perform well at all (when it can't rev freely etc.)
*When there is a smoke or a smell coming from the engine bay.
*When the engine's coolant temperature is too high.
*When there are coolant or oil leaks around the cylinder head.
*When the engine is more noisy than usual.

When should you consider an Head Gasket replacement?

The head gasket is exposed to extreme heat when the engine is running, the part is therefore prone to wear. Normally head gaskets can cope with the heat, but when the engine becomes way too hot the head gasket can fail. This is normally referred to as a blown head gasket, and the result will be that pressure inside the engine's combustion chambers drops preventing an optimal combustion. The engine will not run properly in that case, if at all. Should you experience a head gasket failure then it is advisable not to run the car and get help from a professional mechanic. At all times make sure to follow the manufacturer's guidelines.

What happens during an Head Gasket replacement?

*Mechanic will inspect the area around the cylinder head.
*The mechanic will replace the head gasket if a replacement is required.
*Mechanic will advise if other parts need to be replaced.
*Sometimes the cylinder head needs to be skimmed when a head gasket replacement. A mechanic can advise and supply a quote for this additional work.
*If necessary, the mechanic can suggest to replace the cylinder head bolts as well.
*Mechanic will again check for any leaks around cylinder head and test drive the car.

How much does a Head Gasket replacement cost?

The cost of a head gasket replacement depends on your car and what parts the manufacturer recommends as being required for the replacement. A head gasket repair is an fairly complicated job and usually also requires skimming of the cylinder head, a mechanic will be able to advise and quote should this be necessary. If you book with ClickMechanic, you could save up to 50% on you head gasket repair versus franchise dealers.