一次,我们带学生到一家汽车修理厂实习.在发动机修理车间接受了一辆东风EQ6100发动机大修任务。在拆检过程中,根据检修标准更换了一些配件。其中,该发动机所使用的凸轮轴轴颈、凸轮的几何形状、尺寸精度已达到使用极限。在发动机装配时换装了一根新凸轮轴。组装后的发动机经台架试机工作正常。但是该机经装车路试,发现发动机冷却水开锅,发动机过热。 Once, we took the students to an auto repair shop for an intern and received a major overhaul of the Dongfeng EQ6100 at the engine repair shop. In the demolition process, according to maintenance standards to replace some of the accessories. Among them, the engine used camshaft journals, the geometry of the cam, dimensional accuracy has reached the limit of use. Refit a new camshaft when the engine is assembled. After the assembly of the engine through the bench test machine is working properly. But the machine was loaded road test and found the engine cooling water boil, the engine overheated.