tappets

On stripping down a damaged motor, the tappets are invariably found to be heavily pitted and bits of metal broken off the camshaft lobes.
拆解报废的发动机就会发现推杆无一例外地存在严重的麻坑及从凸轮轴凸轮脱落的金属磨屑。
The engine featured a one-piece crankcase and cylinder block, a single cam with rocker arms actuating tappets to control the valves.
发动机精选一件曲轴和缸体，一个单一的凸轮与摇臂武器启动挺杆控制阀。