S1 95、S1 1 0 0等单缸柴油机装配后到测试校正过程中 ,往往有少量整机在台架测试时 ,在机体与主轴承盖装配结合面处渗油、漏油。现就渗、漏油原因分析如下 :1　零部件质量方面因素装配结合面处主要有以下零部件 :柴油机机体、主轴承盖和纸垫、螺柱等。主轴承盖 Φ1 95+ 0 .0 3 S1 95, S1 1 0 0 and other single-cylinder diesel engine assembly to the test after the calibration process, often a small amount of machine in the test bench, the body and the main bearing cap assembly with the oil leakage and oil leakage. Now on the seepage, leakage causes analysis is as follows: 1 components and parts quality aspects of the assembly surface with the following key components: diesel engine body, the main bearing cover and paper pads, studs and so on. Main bearing cap Φ1 95+ 0 .0 3