Replace the car valve yourself.

Because the valve is installed on the rim, if the valve is replaced in the repair department or 4S, it is usually replaced after the tire is pulled out. You don't need to take off the tire to change the valve yourself, but you have to deflate the tire first, press it down at the place where the valve is installed to expose the base of the valve, cut off the original base of the valve and pull out the valve before you can change it.

The process of manually replacing the automobile valve is as follows:

1. Vent the tire air, and press the tire down where the valve is installed to expose the valve base;

2. Cut off the cylinder base and pull out the gas nozzle;

3. A new valve. Pass the new valve through the rim, pull it with the needle-nosed pliers, adjust the viewing angle, and the base will be stuck on the circle of the automobile hub, and then move forward safely.

Although it is not necessary to disassemble the tire according to this method, the quality of the new valve is different from the original one, especially the metal material is replaced by plastic or the plastic is replaced by alloy. Therefore, it is suggested that it is best to do a rotor dynamic balance. If you open the tire reloading valve, you need to do rotor dynamic balance. The separation of tire and rim has affected the rotor dynamic balance of tire.

It must be paid special attention to that no matter the aluminum alloy profile valve or plastic, the part that contacts the rim is plastic. In other words, after a long time, it will naturally age, slowly crack, deform and lose ductility. Moreover, when the car is driving, the vulcanized rubber valve will swing back and forth with the centripetal force and then deform, further promoting the embrittlement of vulcanized rubber. If it is not replaced immediately, it is likely to cause slow steam leakage. It is generally recommended that the valve be replaced every 3- 4 years.

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