气门座铰刀并非可有可无气门是柴油机配气机构的重要组成部分，肩负着配气机构工作全过程。而气门应修理质量影响到柴油机的起动性能及经济性能。据本人所知，多数修理点基本没有配备气门座铰刀专用工具（较难买，且价格较贵），一些修理人员和机手，凡发现压缩力不足，就... Valve seat reamer is not optional Valve is an important component of diesel engine with gas agencies, shoulder the whole process of work. The quality of the valve should be repaired to affect the starting performance of diesel engines and economic performance. As far as I know, the majority of repair points are not equipped with special valve seat reamer tools (more difficult to buy, and the price is more expensive), some repairers and hand machines, who found that compression is not enough, on ...