我车队于1977年从日本进口12辆日产CK20型汽车,至今已行驶近80万公里。其中有7辆车行驶至35～50万公里时,发现气缸套产生穴蚀现象,穴蚀部位大体为第二缸和第五缸距气缸体上平面80～110mm处。1979年又进口一批同型号汽车,由于已获得一定的使用经验,至今已行驶65万公里,技术状况仍良好,未发生气缸套穴蚀现象。 My team imported 12 Nissan CK20 models from Japan in 1977 and has now traveled nearly 800,000 km. Among them, 7 vehicles were traveling to 35 to 500,000 km and found that the cylinder liner produced cavitation, and the cavitation parts were generally the second and fifth cylinders 80 to 110 mm away from the upper plane of the cylinder block. In 1979, a number of imported vehicles of the same type were imported. As a result of having gained some experience in use, they have driven 650,000 kilometers so far and the technical condition is still good with no cavitation of cylinder liner cavities.