What are the symptoms of engine air leakage?

[Meredith]

Engine air leakage symptoms include: 1. When there is leakage at the carburetor gasket, intake manifold gasket, cylinder gasket, valves, cylinders, or any other part, it will result in reduced cylinder pressure; 2. Insufficient power; 3. Increased consumption of engine oil and fuel, and even difficulty in starting. More details are as follows: 1. The airtightness of the engine is one of the important conditions to ensure its normal operation. The better the airtightness of the engine, the higher the cylinder pressure, the greater the instantaneous effective pressure generated during the engine's working stroke, the faster the combustion of the air-fuel mixture, and the less heat loss from the cooling water and exhaust gases, resulting in better power performance and fuel economy. 2. The causes of engine air leakage are: During long-term use of the engine, due to wear and tear of cylinder-piston group components, wear and erosion of valves and valve seats, and warping of the sealing surfaces of the cylinder block and cylinder head, the amount of air leakage in the cylinder increases, and the sealing performance decreases, leading to reduced engine power and increased fuel consumption.