喷油泵和喷油器油道的污染来源有三方面:即外部传入、摩擦产生和内部原来的。所以,有的单位不仅在选择标准喷油器总成时,对喷油器壳体用报废的旧喷油嘴偶件(调至标准喷油压力)进行去污磨合,就是对喷油泵,不管是标准泵、样品泵、还是产品泵、修复泵,在调试前,也用报废的旧喷油器总成(调至标准喷油压力)进行去 There are three sources of contamination of the injection pump and injector oil passages: external penetration, friction generation, and internal originals. Therefore, some units not only in the choice of standard injector assembly, the injector housing with the old scrap nozzle (transferred to the standard injection pressure) for decontamination grinding, is the fuel injection pump, regardless of Is the standard pump, sample pump, or product pump, repair pump, before debugging, but also with the scrap of the old injector assembly (adjusted to the standard injection pressure) to go