曲柄连杆机构、配气机构和气缸活塞组是柴油机的工作基础。柴油机是否需要大修,主要是根据这些机构的技术状况决定的。 在柴油机工作过程中,机构中的零件不可避免地发生磨损,由于结构的限制,其磨损状况在不解体的条件下难以直接检测,所以常常用一系列诊断方法去判断其技术状况,确定其故障所在。常用的诊断方法有: Crank and connecting rod mechanism, valve train and cylinder piston group are the working basis of diesel engine. Whether diesel engines need overhaul is mainly determined by the technical conditions of these organizations. In the process of diesel engine, parts of the organization inevitably wear, due to structural constraints, the wear and tear conditions in the non-disintegration of the direct detection is difficult, so often to use a series of diagnostic methods to determine its technical status, to determine the fault Where you are. Common diagnostic methods are: