Vettoriale Stock Positive Crankcase Ventilation (PCV Valve). An ignition engine must have a vent valve for internal and external air pressure to prevent wear due to high pressure. Info graphic. | Adobe
JTech Autoserv - Positive Crankcase Ventilation (PCV) is a system that was developed to remove harmful vapors from the engine and to prevent those vapors from being expelled into the atmosphere. The
Crankcase ventilation systems - Engine & fuel engineering - Eng-Tips