When the car's valve is damaged, do you need to replace a whole set? The answer is not a simple yes or no. It is necessary to decide whether a complete set needs to be replaced according to the degree of valve damage. Below we will introduce the damage of the valve and the corresponding recommendations.

If the valve is only slightly damaged, you can buy parts to replace it yourself, or go to the 4S shop to replace it through a professional. However, it should be noted that grinding is required after replacement to ensure the normal operation of the valve.

If the valve is severely damaged and cannot be used, affecting driving safety, a complete set of top doors needs to be replaced. At the same time, after replacement, it should be run-in with the cylinder head to avoid air leakage and ensure the normal operation of the engine.

Of course, if you are not sure about the degree of damage to the valve, you can consult a professional and listen to their opinions in order to make a final decision.

The valve is a very important part of the engine. Its function is to input air into the engine and discharge the exhaust gas after combustion. According to the structure, the valve can be divided into intake valve and exhaust valve. The function of the intake valve is to suck air into the engine and mix and burn with fuel; the function of the exhaust valve is to discharge the burned exhaust gas and dissipate heat.