Other possible reasons include problems with the oil pump, rod and main bearing clearances, camshaft end play, or CAM bearings and lifters.
其他可能的原因包括油泵问题，杆和柱轴承之间的空隙，凸轮轴停止工作或者凸轮的方位和升降等。
2
The parts design and principle were discussed that includes the oblique plane, the swing arm parallelogram, and the end plane CAM.
阐明斜平面、摆臂平行四边形、端面凸轮等部分的设计和原理。
3
The abutment or end location (23) is sized to provide that the source is supported in its correct position for opening of its valve on operation of the CAM mechanism (8).