C280 Marine Auxiliary Engines Caterpillar


Noise Coming from Cylinder

Usage:

C280-6 LDL

可能原因

  • 劣质燃油

  • 喷油器

  • 润滑不足

  • 气门间隙过大

  • 配气机构部件损坏

  • 连杆轴承故障

劣质燃油

请参阅操作和保养手册以了解燃油质量建议。

喷油器

采用 Caterpillar ET(Electronic Technician,电子技师)确定是否存在任何喷油器电磁阀的诊断代码。 执行"喷油器电磁阀测试"。 观察 Cat ET 对喷油器电磁阀励磁。 执行"断缸测试"。 找出缺火气缸。 请参阅故障诊断与排除, "喷油器电磁阀"中的诊断功能测试。

润滑不足

检查气门室的润滑情况。 检查喷油器挺杆和摇臂按钮之间是否充分润滑。 检查油道是否堵塞。 油道必须清洁。 确保将机油输送至缸盖的油道清洁。

气门间隙

检查气门间隙。 请参阅系统操作 / 测试和调整手册以了解更多与调整气门间隙有关的信息。

配气机构部件损坏

从怀疑有故障的气缸上卸下气门室盖。 检查下列各项有无损坏:凸轮轴, 气门弹簧座, 气门弹簧, 挺杆, 推杆 和 桥。 检查有无不能自由移动的气门。 拆卸缸盖。 检查每个气门。 更换所有损坏的零件。

连杆轴承故障

检查连杆轴承和曲轴上的轴承表面(轴颈)。 检查活塞销有无过度磨损。 更换所有损坏的零件。

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