What is the valve clearance of Nissan Sylphy?

Xuanyi valve gasket clearance, intake valve 0.20 ~ 0.25, exhaust valve 0.25 ~ 0.30. The function of the automobile valve is to input air into the engine and discharge exhaust gas after combustion. From the engine structure, it is divided into intake valve and exhaust valve. The function of the intake valve is to draw air into the engine and mix it with fuel for combustion; The function of the exhaust valve is to exhaust the exhaust gas after combustion and dissipate heat. The symptoms of automobile valve damage are: 1, which will affect the working efficiency of the engine and reduce the power of the automobile; 2. There will be abnormal noise, unstable idle speed or poor acceleration when the engine is running, and overtaking performance will also be reduced. In severe cases, it will also lead to the difficulty in starting the engine, the phenomenon of flameout, air leakage or increased carbon deposition in the car; 3. The rupture of the valve will lead to the unstable operation of the cylinder, the engine shaking, the engine working inability, the blockage of the exhaust pipe, and even the black smoke from the exhaust.