柴油机试车后气门间隙增大原因及分析

The Reason of Valve Lash Increase after Engine Test and Analysis

针对柴油机试车后进排气门间隙增大,通过试车考核和拆机分析等试验,查找具体原因,采取降低气门间隙增大发生概率的改进措施,并在批量生产中得到了验证。

To find out the specific reason of valve lash increase after engine test,the engine was disassembled and measured.Countermeasures were introduced to reduce the possibility of valve lash increase.The measures have been verified though scale production.