Nowadays, the quality of gasoline is good and bad. After gasoline vehicles have been used for a period of time, it is inevitable that there are various impurities in the fuel tank, which makes the filter in the fuel supply system gradually unable to bear. More and more precipitated impurities in the fuel tank will inevitably enter the engine with the fuel supply system in the vehicle. Over a long period of time, it will cause damage to the vehicle. Now let's see how to clean the oil tank!
1. Why clean the tank?
Although the fuel tank is in a semi closed state except when refueling, it is totally closed at other times. However, with the increase of the age of the car and the use time, more and more impurities will precipitate in the fuel tank.
There will also be impurities in the oil itself, and a lot of impurities will accumulate at the bottom of oil depots of gas stations for a long time. After entering the tank, these impurities precipitate to the bottom of the tank. Slowly, when the sediment is too much, it will also enter the car engine with the fuel, which will cause very serious wear to the car engine.
2. When should it be cleaned?
The oil tank itself is also protected from water and heat. If you drive at idle speed for a long time, you may have to clean the oil circuit of your car at 30000 km. Or change the filter. Otherwise, once the oil circuit is blocked, the air pressure in the oil tank will be too high. During the driving process, the car will also swing. Under high pressure, the oil tank is easy to crack. When it is more serious, there will be oil leakage, and the fuel consumption will become very high!
3. How to clean?
Tank cleaning is divided into two steps, internal and external.
Exterior: clean and check the exterior of the oil tank, check the oil tank, oil pipe and joint for concave and leakage, and tighten the fixing bolts of the oil tank bracket. If concave and leakage are found, the damaged parts should be removed for repair.
Inside: open the fuel tank port, take out the filter cartridge, suck out part of the fuel in the fuel tank, and there is about 30L fuel left in the tank.
Insert the cleaned compressed air pipe (preferably plastic pipe) into the bottom of the fuel tank from the filling pipe orifice, and blow the fuel at the bottom of the fuel tank with air pressure to make it churn and clean. When cleaning, a clean cloth can be used to slightly block the oil filling pipe orifice inserted into the oil pipe, and the position and direction of the lower end of the gas pipe can be changed continuously.
After 20 minutes of purging, drain the fuel in the tank immediately, so that the impurities suspended in the oil flow out with the fuel. If the outflow fuel is dirty, clean the fuel tank again in the above way.
Replace and tighten the drain plug.
Clean the filter cartridge of the oil filling pipe and put it into the oil filling pipe. Add clean fuel into the tank, cover the tank cap, and wipe the outside of the tank clean. Finally, it should be noted that the fuel discharged from the fuel tank can only be used after 72 hours of precipitation.