Ⅱ号喷油泵经长时间使用,普遍出现调速器后壳体衬套松动,使得衬套与壳体之间,密封胶圈与操纵臂轴及衬套之间漏油甚多,导致调速器壳体内缺少润滑油。加快了喷油泵及调速器内各运动件的磨损。Ⅱ号喷油泵调速器是以两个卡簧挡在衬套垫圈上,控制轴向窜动。卡簧磨损,衬套松动,操纵臂轴窜动也随之增大。当轴向间隙达到2毫米以上时,调 Ⅱ long-term use of fuel injection pump, the governor casing bushing generally loosening, making the bushing and housing between the sealing ring and the operating arm shaft and bushing leakage between the oil, leading to speed Lack of grease in the housing. Speed ​​up the fuel pump and governor of the moving parts of the wear and tear. II pump governor is blocked by two retaining rings in the bushing gasket, control the axial movement. Spring wear, bushing loose, manipulator arm shaft movement also will increase. When the axial clearance reaches 2 millimeters or more, tune