Causes of carbon deposition
The engine's power comes from the downward movement of the engine piston, the mixture of gasoline and air is drawn into the cylinder, and then the piston that moves upwards compresses the oil and gas into a highly combustible gas. Finally, the spark plug ignites it and the piston is powerful. The engine is powered by the explosive force. The source of the power - the mixture must pass through the intake valve to enter the combustion chamber; a small part of the gasoline will adhere to the intake valve, in the high temperature of the engine, the gasoline can not burn complete hydrocarbons, paraffin, gelatin It will be burnt into a carbonaceous material. If the injector has fouling, the atomized state of the injected gasoline is not good, and the mixing of gasoline and air is uneven, which will increase the amount of gasoline condensed on the intake valve. The bad thing is that the carbon has the characteristics of attracting gasoline, so this layer of carbon will absorb the gasoline, and the absorbed gasoline will be burned into carbon to form a thicker carbon deposit, and the thicker carbon will absorb more gasoline. Such a vicious cycle to the intake valve due to too much carbon so that it can not be closed, so that the engine can not operate.