1 前言 160型柴油机主要由山东潍坊柴油机厂生产,广泛用作船舶主机、辅机、发电机动力、农用、水利动力等。近年来在该机的使用中发现了一些问题,影响到它的使用寿命。我们对某些零部件作了适当的改进和磨损后的修整,现介绍如下。 2 进排气机构 2.1 进排气阀使用中往往发现气阀杆顶端容易磨成凹坑(图1)。这种凹坑在校正气阀间隙时还不能校 1 Introduction 160 diesel engine is mainly produced by Shandong Weifang Diesel Engine Factory and widely used as the main engine, auxiliary engine, generator power, agricultural and hydraulic power. In recent years the use of the aircraft found some problems affecting its service life. We have made some improvements to some of the components and wear after the dressing, are presented below. 2 Into the exhaust 2.1 intake and exhaust valve is often found in the use of gas stem easily grind the top of the pit (Figure 1). This pit can not calibrate the valve clearance school