喷油正时记号不清或错乱时的校正方法田福林，李连库，赵文华（黑龙江省望奎县农机科研所望奎１５２１００）当发动机出现喷油正时（即喷油提前角）不对的故障时，会导致发动机起动困难、功率下降。喷油过晚冒白烟，温度高；喷油过早冒黑烟，有敲击声，起动时出现反转现象... Fuel injection timing unclear or confused correction method Tian Fulin, Li Lianbao, Zhao Wenhua (Wangkui County, Heilongjiang Province Agricultural Research Institute Wangkui 152100) When the engine fuel injection timing (ie fuel injection advance angle) wrong fault will be Lead to the engine start difficult, the power down. Injecting too late to smoke white smoke, high temperature; premature black smoke, percussion, starting when the reverse phenomenon ...