Keeping a car in spring and summer is easy to "get sick from the mouth". Understand these points!

May and June alternate between spring and summer, with high and low temperatures. Seasonal colds will come to you if you don't pay attention to them. "Spring covers autumn and freezing" is the intimate exhortation of the older generation to young people. Most of Chinese mainland is located in the subtropical monsoon climate zone. Presumably, this climate has also brought a lot of troubles to card friends. Car maintenance needs special attention, especially the engine. Don't let your car suffer from "seasonal diseases" because of neglect of maintenance.

This paper summarizes the maintenance precautions of engine air filter to help your car keep "smooth breathing" and enter summer smoothly.

Sandstorm and rain affect the life of air filtration.

The spring breeze is ten miles, and the beautiful scenery of birds and flowers is fascinating. The spring breeze blows and blows, the willows are green and the sand is blown. Cars are likely to "eat dirt" in this season, so card friends need special attention.

These dust particles blown by the wind may contain suspended solids, sand, metal particles and so on. And their attachment to the intake pipe may reduce the intake flow, resulting in insufficient engine combustion and weak vehicle acceleration; When they flow into the engine, they will produce acidic or alkaline substances under high temperature and high pressure, which will corrode the cylinder liner and piston and affect the service life of the engine.

May is a magical month. There is a "loess day" in Jiangbei and a "sunny day" in Jiangnan. The increasing diffusion of water vapor in the south is also challenging the performance of air filtration. Inadvertently causing water to enter the air filter will not only harm the air filter itself, but also seriously affect the performance of the engine, resulting in insufficient air intake and frequent engine flameout; If there is too much water, it will also cause extreme working conditions such as engine jacking.

There are many misunderstandings in air filter maintenance.

The weather is good and bad. In order to keep the engine intake "goalkeeper" in the best condition at all times, card friends need to check carefully and shorten the inspection period appropriately.

When checking the air filter, you need to open the plastic box containing the air filter and take it out. Check the cleanliness of the surface of the filter element for dust and stolen goods; Check the integrity of the surface of the filter element for inclination or damage. In addition, it is also necessary to check whether there are obvious traces of water in the air filter and the lower shell of the air filter. When removing dust, you can gently wipe it with a brush, or blow it from the inside out with compressed air of 0.2-0.3MPa.

Many novices have the following misunderstandings in air filter maintenance:

We'll change it then. You don't usually have to watch it. Lazy thinking is not desirable, especially car maintenance. Under normal circumstances, the replacement cycle of air filters for freight cars is about1.5000 km. Many card friends calculate mileage replacement and basically don't check the air filter.

If vehicles have recently experienced severe weather such as dust, they should pay attention to air filtration, especially trucks engaged in the transportation of sand, cement and coal. , long-term access to dusty places, the interval between replacing air filters needs to be adjusted to within 654.38+00,000 kilometers.

Clean frequently and keep clean at all times. As mentioned above, some card friends never check the air filter, and everything goes too far. If the air filter is cleaned frequently, the filtering ability of the filter element will not be fully exerted.

Moreover, the ash capacity of the air filter will be reduced by 20%-40% after each ash cleaning, and the filtering function will basically fail after the filter element is cleaned for six times.

Blow and blow, and it will be clean. This idea is completely wrong. There is a lot of invisible dust attached to the filter element, which can be cleaned without vibration or blowing. These dust sucked into the cylinder will also accelerate the wear of the piston group and cylinder.

If larger particles enter between the piston and the cylinder, it will scratch the inner wall of the cylinder and destroy the seal between the cylinder wall and the piston ring, thus reducing the compression capacity of the cylinder, which is commonly known as the "cylinder pulling" phenomenon by card friends. Therefore, even if the filter element looks "spotless", it still needs to be replaced regularly. Also remind card friends not to blow air filters with air guns. In a short time, strong airflow will damage the filter paper and make impurities enter the engine.

"cylinder pulling" phenomenon

The choice of air filtration is very particular.

This truck is a big guy, and its parts fit together closely. If some of them don't work hard, the truck is likely to "lose his temper." When replacing the air filter, all card friends need to pay attention to the balance between filtration accuracy and filtration efficiency, so as to ensure both the intake quality and the intake volume.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.