The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by push-rods.
缸盖上装有气门、气门弹簧和摇臂轴上的摇臂，推杆推动这部分气门传动机构工作。
2
A bolt is fastened through the bush to thereby fix the rocker shaft on a cylinder head.
螺栓穿过衬套被紧固，从而将摇臂轴固定在气缸盖上。
3
Note that the rocker arm shaft supporting seat with upper oil hole is at front end of the rocker arm and this end should align with upper oil hole on cylinder headrocker arm shaft when assembling.