Does the valve make abnormal noise and need to be repaired?

Vehicle valve is the key component of closed cylinder, and finding the valve ring means that the valve leaks. The slight abnormal sound of the valve indicates that the valve clearance is small and no maintenance is needed. When the valve noise is high, it is necessary to check whether the valve clearance and the valve are seriously damaged, so as to prevent the automobile engine from being damaged and repair it in time. The knocking sound caused by valve leakage is due to the continuous knocking sound between the tail of the valve stem and its push rod when the engine is idling, which is more obvious when the speed ratio is large, but the sound change is not obvious when the engine is turned off. Causes and solutions of abnormal valve sound: 1. Abnormal sound of automobile valve is caused by the clearance between hydraulic valve tappet and cam or valve seat. In most cases, the clearance is caused by excessive wear of the hydraulic tappet, and the abnormal sound is caused by the rapid release of oil pressure in the tappet, so the owner needs to replace the hydraulic tappet. 2. It is because of the carbon deposition in the throttle that the throttle of the car makes abnormal noise, so we need to go to the repair shop to clean the throttle. Carbon deposition will not only produce noise, but also cause car jitter, so it is best to deal with it early. 3. It is because the solenoid valve of the engine carbon canister is damaged, and it is necessary to replace the solenoid valve of the engine. If the solenoid valve is broken, it will not only cause abnormal sound of the automobile throttle, but also cause the engine oil to steam and flood the cylinder. The valve of a car is specially responsible for inputting air into the engine and then discharging 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, and the function of the exhaust valve is to discharge the burnt exhaust gas and dissipate heat.