国产手扶、小四轮拖拉机、小型农用运输车、农副加工动力柴油机,大多数采用单缸柴油机。有些操作手在使用过程中,只顾使用,不注重技术保养,导致柴油机技术状态恶化,最突出的表现就是耗油量超标。使发动机冒黑烟,功率下降,经济性变差。分析其原因有以下几个方面:１喷油嘴磨损喷 Domestic hand-held, small four-wheel tractors, small agricultural vehicles, agricultural and sideline processing of power diesel engines, most of the single-cylinder diesel engine. Some operators in the use of the process, only use, do not pay attention to technical maintenance, leading to deterioration of the technical status of diesel engines, the most prominent performance is excessive fuel consumption. The engine black smoke, power decline, economic deterioration. Analysis of the reasons for the following aspects: 1 nozzle wear spray