What will happen if the valve cover gasket leaks oil?

Effect of oil leakage from valve cover gasket: 1. After the valve cover gasket leaks oil, the oil will flow to the cylinder head. Due to the high temperature when the engine works, the engine oil attached to the engine surface will slowly evaporate, producing pungent smoke; 2. The air tightness of the engine will be affected, and the working pressure of the engine will also leak from the oil leak. The engine has an exhaust gas recirculation valve connected to the throttle valve, and air leakage will affect the stability of the engine. The valve chamber is also called the camshaft chamber, or the oil chamber of the cylinder head. There is a camshaft cover above the valve chamber, which forms an approximately closed cavity with the cylinder head. Cause of oil leakage of valve cover gasket: 1, valve cover gasket aging, resulting in poor sealing; 2. The forced ventilation valve in the crankcase is blocked, which leads to the increase of crankcase pressure, and the pressure is released from the valve cover gasket or other weak points.