How to maintain the used car engine you just bought?

1. Clean the air filter. The air filter is directly related to the air intake of the used car engine when the car is running. The car is only driving in the city, and the air filter will not be blocked. However, if the car is driving on a dusty road, it is necessary to pay special attention to the cleanliness of the air filter. If the air filter is blocked or there is too much dust, the air inlet of the engine will be blocked, and a large amount of dust will enter the cylinder, which will accelerate the carbon deposition speed of the cylinder, which will hinder the ignition of the engine and cause insufficient power, and the fuel consumption of the vehicle will naturally increase.

2. Clean the carbon deposit in the fuel nozzle of used car. Because the combustion chamber is easy to produce carbon deposit, it is difficult to start; Carbon deposition in the fuel nozzle will also lead to oil blockage, gasoline injection deformation, poor atomization, and fuel consumption will naturally increase. For the cleaning of the combustion chamber, a special carbon remover can be used to soften the carbon deposits on the combustion chamber and the fuel nozzle and separate them from the surface of the parts, and then remove the softened carbon deposits. This method of removing carbon has a good effect. Compared with the previous direct wiping, it has the advantage of not damaging the surface of parts, and the efficiency of removing carbon has also been greatly improved.

3. Remove the sludge from the accelerator of the used car. There are many reasons for fouling at the throttle, some of which are carbon deposits formed by the exhaust gas from fuel combustion at the throttle; Then, impurities that are not filtered by the air cleaner will remain on the throttle. Too much sludge will cause air resistance and increase fuel consumption.

Precautions: Generally, used cars should clean their throttles when driving 10000 to 20000 kilometers. When cleaning the throttle valve, first remove the intake pipe, expose the throttle valve, remove the negative electrode of the battery, turn off the ignition switch, straighten the throttle plate, spray a small amount of "carburetor cleaner" into the throttle valve, and then carefully scrub it with a polyester rag or a high-spin "non-woven fabric". Deep in the throttle, you can clip a rag and scrub it carefully. After cleaning, install the intake pipe and the negative electrode of the battery, and you can ignite!