Why Does A Gasoline Engine Produce Knocking?

- Jun 01, 2019-

Why does a gasoline engine produce knocking?

1. The knocking will suddenly generate a shock wave in the cylinder and impact on all sides, causing strong vibration of the piston, cylinder wall, connecting rod and crankshaft of the engine, and irregular metal knocking sounds;

2. The cooling system temperature is too high;

3. The fuel is not completely burned, and there is black smoke in the exhaust gas;

4. The engine power is reduced and the fuel consumption is increased.