Why should the car air filter be replaced

2022-08-03 0 By

The car is often reminded to replace the air filter in the regular maintenance process. Why should the air filter be replaced? Where are the benefits of replacement?Air filter uses: the role of air filter is to filter 98% ~ 99% of the dirt in the air, in order to reduce the cylinder, piston, piston ring, valve and valve seat early wear.Some engine air filters are also equipped with resonators, which help reduce suction noise.Modern cars mostly use paper disposable air filter element to replace the purpose of air filter element:The air filter is located at the entrance of the inlet. In the process of driving, the dust, moisture and oil in the air are filtered by the air filter element. When the paper filter element absorbs too much dirt, it will be blocked, the air intake will decrease, and the engine power will be reduced.Air filters in cars are usually replaced every 20,000 km.The engine in the process of working to absorb a lot of air, if the air is not filtered, the dust suspended in the air is sucked into the cylinder, it will accelerate the wear of the piston group and cylinder.Larger particles entering between the piston and cylinder can cause serious “cylinder pulling” phenomenon, which is particularly serious in dry and sandy working environment.Air filter is installed in the front of the carburetor or inlet pipe, have the effect of filter dust and sand in the air, into the full amount, clean air in the cylinder according to the principle of filtration, air filter can be divided into the filter type, centrifugal, oil bath type, composite several during maintenance, paper filter never put in oil cleaning, otherwise the paper filter effect, also easy to cause accident.Maintenance, can only use vibration method, soft brush division (to fold along the brush) or compressed air blowing back to remove dust attached to the surface of the paper filter element, dirt.For the coarse filter part, dust collection parts, blades and cyclone pipes should be removed in time.Even if every time can be carefully maintained, the paper filter element can not fully restore the original performance, its air intake resistance will increase, therefore, generally when the paper filter element needs to be maintained for 20,000, it should be replaced with a new filter element.If the paper filter element is broken, perforated or the filter paper and the end cover are unglued, it should be replaced immediately.