Knowledge of ethanol gasoline and ethanol special lubricants[汽车维修知识]

1 pairtank, The oil system components are cleaned and inspected: because the ethanol gasoline for vehicles has strong dissolving and cleaning characteristics and hydrophilic characteristics. Therefore, it is recommended that when the vehicle uses ethanol gasoline for the first time, it is best to conduct a preventive inspection or cleaning of the fuel tank and fuel system components to ensure the cleanliness of the fuel system.
2. Fuel tank and oil circuit cleaning operation project EFI vehicles: fuel tank — electronic oil pump —Fuel Filter———Injector———Oil Line and Oil Line Filter
3. Cleaning method
(1) The cleaning vehicle of the fuel tank turns off the power and removes the fuelsensorWiring, remove fuelsensorOr electronic fuel pump. A. Use a hose to draw out the fuel in the fuel tank, leaving about 10 to 15 cm deep fuel. Use a clean rag to clean the fuel tank by hand. B. For fuel tanks with grids or iron fuel tanks with a lot of deposits, gas purging can be used, connecting an external air pump with a soft hose, and purging at a pressure of 3Kg to make the bottom of the tank accumulate Various impurities were washed down by the churn of gasoline. C. Use a disassembly-free cleaning machine to filter and clean the fuel tank.
(2) Cleaning of fuel pump A. Electronic fuel pump: useCarburetordedicateddetergentPerform cleaning. Main cleaning parts: oil inlet filter, external impurities attached. B. Detachable mechanical fuel pump: clean with special cleaning agent for carburetor. Main cleaning parts: oil cup, oil inlet and outlet valves (replace oil pump diaphragm as appropriate). C. Disassembly-free mechanical fuel pump, replace with a new pump as appropriate (mainly due to aging of the pump membrane). < car repairHome>