Valve Lash Is Excessive
- 润滑不充分
- 气门间隙调整不正确
- 配气机构部件
注: 下面以概率的先后顺序列出了这些步骤。 按所列测试步骤中的顺序完成这些步骤。
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| 故障诊断与排除测试步骤 | 数值 | 结果 |
|---|---|---|
1. 检查润滑是否充分 A. 检查气门室的润滑情况。 确保阀门室中有足够的发动机机油流量。 发动机机油通道必须清洁。 |
润滑 | 结果：润滑系统正常。 转至下一步。 结果：润滑系统不正常。 修理：恢复足够的油流。 如果故障未得到排除，转至下一步骤。 |
2. 检查气门间隙 |
间隙 | 结果：间隙设置正常。 转至下一步。 结果：间隙设置不正常。 修理：调整发动机气门间隙。 请参阅发动机的系统操作/测试和调整手册。 如果故障未得到排除，转至下一步骤。 |
3. 检查配气机构部件 A. 检查配气机构的下列部件： - 摇臂 - 推杆 - 气门挺杆 - 凸轮轴 - 气门杆 - 摇臂轴 检查各部件的下列情况： - 平直度 - 异常磨损 - 过度磨损 - 清洁度 |
部件 | 结果：部件不正常。 修理：如有必要，更换零件。 调整发动机气门间隙。 请参阅发动机的系统操作/测试和调整手册。 注：如果更换凸轮轴，则需要强制更换气门挺杆。 |
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