关键词: 汽车发动机；维修；气门倒角；参数

Abstract: Engine maintenance is a precise maintenance process, and the parameters of each component and the coordination parameters between components directly affect the quality and effect of engine repair. This article introduces an important parameter of the automobile engine that is often overlooked during the maintenance process: valve chamfer. By following a maintenance case, from the fault phenomenon to the diagnosis process, test drive process, to the final analysis of the fault cause, it demonstrates the profound impact of the valve chamfer parameter on engine performance. At the same time, it summarizes the practical experience of engine maintenance and also provides a reference for automotive maintenance technicians.

Key words: automobile engine; maintenance; valve chamfer; parameter