The cylinder head gasket is responsible for the tightness of the connection between the cylinder block and the cylinder head. The specified gasket makes it possible to realize the sealing of the combustion chamber and the cooling jacket’s channels, along which the coolant moves. The gasket can be made of thin metal. The second available option is reinforced paronite, which has a metal edging in those places where holes for the combustion chamber are made in the gasket.
Burnout or breakdown of the cylinder head gasket is a serious and fairly common malfunction. The obvious answer to whether it is possible to drive with a punctured cylinder head gasket is the need for urgent repairs. With a slight loss of tightness, it should be added that it is possible to move under its own power in a car, but it is advisable to eliminate such a defect urgently. If the cylinder head gasket is severely punctured and signs of breakdown are clearly visible, the internal combustion engine’s operation is prohibited.
Causes of breakdown and how to check the cylinder head gasket
The engine’s consequences can be disastrous even when driving a car with this problem for a short time. If the breakdown of the cylinder head gasket is ignored, a major overhaul becomes necessary even after a small mileage.
The specified breakdown can occur in both a gasoline and a diesel engine, a turbocharged unit, or an atmospheric version. Breakdown of the gasket requires correct and timely diagnosis. An increase in fuel consumption, difficult engine starting and unstable operation, a decrease in the internal combustion engine’s power, a drop in the level of coolant in the expansion tank, and low compression in the cylinders can indicate a problem at an early stage.
The most common causes of breakdown or burnout of the cylinder head gasket are:
- overheating of the engine;
- incorrect installation when replacing the gasket;
- the consequences of the power tuning of the internal combustion engine;
- inappropriate tightening torque of the cylinder head bolts;
- driving on low-quality gasoline, which is accompanied by detonation ;
Engine overheating is the main cause of cylinder head gasket breakdown. Engine overheating occurs for various reasons, ranging from a malfunction of the cooling system and ending with such phenomena as engine detonation or glow ignition. Both metal (asbestos) gaskets and paronite gaskets under such conditions usually do not withstand the rising temperature during overheating and burnout. After such a burnout, the strength of the gasket becomes less, and it is blown out.