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一、喷油泵的故障特征及测试方法 1、故障特征 发动机不能启动或启动困难及发动机功率下降或运转不平稳。 2、测试方法 将高压油管管口朝上,用一只调试好的喷油器安装在高压油管上,摇动发动机,如喷油器在大、小油门位置上都能喷出雾状油来,说明喷油泵能够使用,如不能或状态不好,就可判断为喷油泵有故障。
First, the fuel pump failure characteristics and test methods 1, the failure characteristics of the engine can not start or start difficult and engine power down or running is not stable. 2, the test method The high-pressure tubing nozzle up, with a good test of the injector installed in the high-pressure tubing, shaking the engine, such as injectors in large and small throttle position can spray mist oil, Explain the fuel pump can be used, if not or the state is not good, you can determine the fuel pump is faulty.