拖拉机在行车一定时间后,由于超载、超速运输,使用不当使发动机零件磨损、排气管积炭等,造成发动机运转时冒黑烟、蓝烟、白烟现象的发生。冒烟使耗油率增加、功率下降,影响发动机的正常工作,减少机主的营运收入。一、发动机排气管冒黑烟产生的原因及解决办法1.冒黑烟产生的原因:拖拉机超载超速运行,使发动机负荷过重,燃烧室积炭严重;供油时间过迟,燃烧不完全;喷油器工作 Tractor driving a certain time, due to overloading, speeding, improper use of the engine parts wear and exhaust coke, causing the engine running black smoke, blue smoke, white smoke phenomenon. Smoke to fuel consumption increased, the power down, affecting the normal work of the engine to reduce the owner’s operating income. First, the engine exhaust pipe black smoke causes and solutions 1. Black smoke causes: overloaded tractor speeding, so that the engine load is too heavy, the combustion chamber coke serious; fuel supply time is too late, the combustion is not complete Injectors work