Camshaft
注: 安装凸轮轴之前，确保凸轮轴和凸轮轴轴承干净。 用按 50/50 比例混合的 8T-2998 润滑剂 和清洁发动机机油混合液润滑凸轮轴凸轮。 在凸轮轴轴承上涂抹薄薄一层清洁的发动机机油。
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| 图 1 | g01525229 |
(1) 排气凸轮 (2) 喷油器凸轮 (3) 进气凸轮 (4) 凸轮轴前部 | |
(A) 凸轮轴轴颈的直径 ... 84.85 mm (3.341 in)
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| 图 2 | g01525234 |
按照以下步骤得出实际凸轮升程：
- 测量凸轮轴凸轮高度 (C) 。
- 测量基圆 (D) 。
- 从凸轮高度值 (C) 中减去基圆 (D) 。 二者之差即为实际凸轮升程。
(B) 凸轮轴凸轮规定升程
- 排气凸轮 ... 8.515 mm (0.3352 in)
- 喷油器凸轮 ... 10.655 mm (0.4195 in)
- 进气凸轮 ... 9.431 mm (0.3713 in)
- 喷油器凸轮 ... 10.655 mm (0.4195 in)
步骤 3 中得出的实际凸轮升程与规定的凸轮升程之间的最大允许差值为 0.13 mm (0.005 in)。
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