Engine Oil Level - Check
发动机停机时，可以对机油油位做最精确的检查。
- 为了确保曲轴箱压力等于大气压力，请拆下加注口盖 (1)。
过大的压力或稍小的真空度都将影响所测量的发动机机油油位。
- 确保发动机油位表 (2) 就位。
- 如果发动机停机，则取出发动机油位表。 观察"发动机停机，机油处于冷态"侧 (3) 的发动机油位。
- 如果发动机处于运行状态，降低发动机的转速到低怠速。 取出发动机油位表，观察"发动机低怠速，机油处于温态"侧 (4) 的发动机油位。
发动机油位应介于"加"标记 (5) 与"满"标记 (6) 之间。
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图 2 g00735162 (3) "发动机停机，机油处于冷态"侧
(4) "发动机低怠速，机油处于温态"侧
(5) "加"标记
(6) "满"标记Show/hide table注意 如果曲轴箱中的机油量超过机油油位计(油尺)上的"满(FULL)"标记，发动机就可能会损坏。
曲轴箱注油过量能使曲轴浸在机油中。 这将降低发出的功率，还迫使空气泡进入机油中。这些气泡(泡沫)会造成下列问题： 降低机油的润滑能力, 降低机油压力, 冷却不充分, 机油从曲轴箱呼吸器处涌出 and 更多的机油消耗量。
机油的过度消耗将在活塞上和燃烧室中形成积碳。燃烧室中的积碳会导致下列问题： 气门形成冲蚀槽, 活塞环后积碳堆积 and 缸套磨损。
如果机油油位高于油尺上的"满(FULL)"标记，立即放掉一些机油。
- 必要时，添加机油。 关于要使用的正确发动机机油，请参考本操作和保养手册, "加注容量和建议"专题（保养部分）。 加注曲轴箱时，不要使油位超过发动机油位表上的"满"标记。 清洁加注口盖 (1)。 安装加注口盖。
- 记下加注的机油量。 为了进行下一次机油取样和分析，记录应包括上次更换机油时已添加的机油总量。 此信息将有助于提供最准确的分析。
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| 图 1 | g06362039 |
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(1) 发动机机油油位表（油尺）
(2) 发动机机油加注口 | |
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