Do-it-yourself car valve replacement

1. Exhaust the tire gas, press down the tire at the place where the valve is installed, and expose the base of the valve;

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

3. Install a new valve. Put the new valve through the rim, pull it with needle-nose pliers, adjust the angle of view, the base becomes stuck on the round shape of the car hub, and the installation proceeds.

Although this method does not necessarily remove the tires, but because of the replacement of a new valve, there is still a certain difference in quality from the original, especially if the metal material is replaced by plastic, or the plastic is replaced by plastic. Alloy, therefore, it is recommended to do a dynamic balance of the rotor. If the tire is lifted and then the valve is installed, the rotor dynamic balance must be done, and the tire is separated from the rim to form the rotor dynamic balance that has affected the tire.

What needs special attention is that, whether it is an aluminum alloy valve or a plastic one, the part that is in contact with the rim is all plastic. In other words, natural aging will occur after a long period of time, and it will gradually crack, deform, and lose its elasticity. And when the car is driving, the rubber valve will swing back and forth with the centripetal force and deform, which further promotes the aging of the rubber. If it is not replaced in time, it may cause slow steam leakage. It is generally recommended that the valve should be replaced every 3-4 years.