Mechanical Noise (Knock) in Engine
- 驱动设备
- 气缸盖和相关的部件
- 齿轮系
- 曲轴和相关的部件
- 活塞
检查被驱动设备的对中和平衡。 检查联轴器。 必要时，分离被驱动设备，然后再测试发动机。
检查气门机构零部件状态是否良好。 检查气门、气缸盖密封垫等有无损坏和/或过度磨损迹象。检查曲轴的状态。 如果更换凸轮轴，必须安装新的气门挺杆。
检查齿轮系的状况。
检查发动机机油滤清器有无非铁质材料。 非铁质碎屑可能表明齿轮系轴承磨损。
检查曲轴和相关部件。 检查曲轴上的连杆轴承和轴承表面。 确保轴承处于正确位置。
查找止推片和曲轴有无磨损。
检查配重螺栓。
确保活塞销安装正确。
按照再用零件和修复操作指导原则来检查活塞状况。
Caterpillar Information System:
G3500 Engines Low Power/Poor or No Response to Throttle
G3500 Engines Intermittent Engine Shutdown
G3500 Engines Inlet Air Temperature (High)
G3500 Engines Fuel Metering Valve
G3500 Engines Exhaust Port Temperature (High)
G3500 Engines Excessive Engine Oil Consumption
G3500 Engines Engine Will Not Crank
G3500 Engines Engine Timing Does Not Match Programmed Timing
G3500 Engines Engine Starts but Stalls Immediately
G3500 Engines Pressure Sensor
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