What is the function of the crankcase ventilation system?
2 Answers
The function of the crankcase ventilation device is: to prevent engine oil deterioration; to prevent leakage from the crankshaft oil seal and crankcase gasket; and to prevent various oil vapors from polluting the atmosphere. Below is relevant information: 1. The reason for crankcase ventilation: Since combustible mixture gas and exhaust gas enter the crankcase, the pressure inside the crankcase will increase, causing engine oil to leak and be lost from the crankshaft oil seal, crankcase gasket, and other places. Oil vapor lost into the atmosphere will increase the engine's pollution of the atmosphere. 2. Precautions: If the crankcase ventilation system fails to work properly, it should be repaired immediately. Otherwise, excessive pressure inside the engine may occur, which can damage the engine. There is also an important component in the crankcase ventilation system, called the oil-gas separator, which is used to separate oil vapor inside the crankcase.
I've worked in auto repair shops for decades, and the crankcase ventilation system is truly important. It sucks those exhaust gases generated inside the engine into the intake manifold to burn them off, preventing them from accumulating in the engine oil. Otherwise, the oil gets dirty and corrodes parts, and the engine may age prematurely. If this system gets clogged, you'll notice unstable idling, weak acceleration, or even oil seepage on the oil cap. Regular maintenance to clean the lines can also reduce environmental pollution by cutting down on harmful gas emissions. Many issues in older cars stem from neglecting this system, so I recommend regular inspections to keep it clear and help your beloved car run longer.
