A majority of head gaskets can be appropriately fixed without requiring the skills of a mechanic. However, there are instances where there is great damage that requires the expertise of a professional to intervene so as to replace the head gasket. Apart from such cases, numerous leaks from a head gasket can simply be taken care of. The only thing that will be required of you is to determine the approximate chemical sealant level that would be appropriate to address to the leaks from the head gasket.
Operation of the cooling system
The cooling system of a vehicle usually works by maintaining a temperature that is constant. It does this by the circulation of a liquid coolant via the engine and then returned to a radiator for cooling. There are usually thousands of explosions happening every second in the engine so as to propel the vehicle forward on the road. These create significant heat and it is the work of the cooling system to regulate the temperatures to prevent explosion of the engine. It achieves this as earlier explained.
Head gasket function
A head gasket is normally pressed between cylinder heads and the engine block to facilitate water as well an air tight seal. It is primarily meant to seal against the pressure caused by combustion on the cylinder. This is to allow both the sealant and oil to properly flow between the block and the head without mixing with each other or leaking into the combustion chamber.
Head gasket damage
The head gasket is made of a sheet metal that is soft. It is stamped to create ridges that surround all possible leak locations. In order to create a tight seal, it is pressed between the block and the head using head bolts. It is often damaged from overheating of the engine. This is because the cylinder warps on exposure to high temperatures for long periods. This causes the seal that is under pressure to be released on the head gasket. Other possible causes of gasket failures are old age and high mileage of the vehicle.
Head gasket repair
There are a number of ways of fixing gaskets that have blown up or are leaking. Generally sealants are used to seal cylinder heads and engine blocks that are warped or cracked. The high quality types form strong seals that stop all coolant leaks in engine blocks, cylinder heads, intake manifolds, heater cores, radiators and freeze plugs.
The type of sealant to be used is dependent on the extent of leaks i.e. if mild, moderate or severe in extent. Some require the whole cooling system to be drained and refilled with pure water for them to be effective. Clients should aim for sealants that effectively penetrate cracks and gaps as a result of overheating damage or head gaskets that have blown up. The anti-freeze kind should suffice.
Chemical sealants are an excellent way to fix leaking head gaskets. They are also beneficial in the sense that they are an affordable DIY auto repair. The above insightful information about head gasket repair should help you to better understand head gaskets and how to easily repair them.