汽油机常见故障（Common troubles of gasoline engine）.docVIP

汽油机常见故障（Common troubles of gasoline engine） Common faults diagnosis of gasoline engine fuel system (1) Time: 2011-05-10 08:51:27 source: Northern Automotive school, author: admin The troubles of the traditional gasoline engine fuel system are mainly manifested in three aspects of oil leakage, blockage and mechanical damage, of which oil leakage and blockage are common faults. The location and cause of common faults are mainly as follows: Insufficient oil storage or switch on fuel tank; Blockage of oil tank air hole or blockage of oil pipe out of fuel tank; Rupture of tubing or loose joint of tubing; Filter plug of gasoline filter element, gasoline pump strainer or carburetor inlet pipe joint; Leakage of gasoline filter, sedimentation cup, gasket or its central bolt gasket; The gasoline pump inner and outer rocker joint or the outer rocker arm and cam eccentric shaft joint wear; The gasoline pump gasket leak or spill oil diaphragm carburetor Songkuang; solar term door; The gasoline pump oil inlet and outlet valve is not sealed; carburetor choke open or air filter clogging serious; To oil into the carburetor needle stuck or not tightly closed; internal orifice, carburetor oil duct, airway obstruction; The carburetor float oil surface rupture or disorder; improper adjustment of carburetor. Due to the above reasons, gasoline engine fuel supply system will produce oil or oil, gas, gas mixture, gas mixture, idle, poor acceleration, and poor concentration and other faults. 1., do not come to the oil or poor oil 1) phenomenon: the engine cannot start or work gradually flameout; using gasoline pump hand pump oil, rocker tread the accelerator pedal, proper pull choke or to pour in the carburetor gasoline engine and other measures, can start, but not long time running and flameout, the engine can launch, also can be a long time operation, but lack of power, poor acceleration, check the carburetor float chamber liquid, that is too low. 2) reasons: (1) there is no oil in the tan