What are the symptoms of a burnt cylinder head gasket?

[LeJackson]

Automobile cylinder head gasket burning failure phenomenon is: 1. After the engine starts, there will be a sharp popping sound from the damaged part of the cylinder head gasket. In severe cases, exhaust gas can be seen escaping, and moving your hand along the perimeter of the cylinder head gasket, you can feel hot air rushing against your hand; 2. At the joint surface between the cylinder head and the cylinder block, water, oil, or bubbles may emerge. The reasons for cylinder head gasket burning include: 1. Uneven or insufficient tightening force of the cylinder head bolts, deformation of the joint surface between the cylinder block and cylinder head; 2. The engine frequently operates under conditions of high load, early ignition, engine overheating, or detonation; 3. The cylinder head gasket itself has quality issues.