C9 On-highway Engine Caterpillar


Camshaft

Usage:

C9 9DG



图 1g01182785

(1) 排气凸尖

(2) 以下尺寸位于上图所示位置。

新止推垫圈厚度 ... 4.70 mm (0.185 in)
至 ... 4.76 mm (0.187 in)
新凸轮轴轴向间隙 ... 0.10 ± 0.08 mm (0.0039 ± 0.0031 in)
磨损凸轮轴的最大可允许轴向间隙 ... 0.46 mm (0.018 in)

(3) 进气凸尖

(4) 凸轮轴轴颈直径 ... 65.126 ± 0.013 mm (2.5640 ± 0.0005 in)




图 2g00923332

(5) 凸轮高度

排气凸尖 ... 6.858 mm (0.2700 in)
进气凸尖 ... 8.655 mm (0.3407 in)

采用以下步骤来确定凸轮高度:

  1. 测量凸轮轴凸尖高度 (6) 。

  1. 测量基圆 (7) 。

  1. 将步骤 2 中得到的基圆数值从步骤1中得到的凸轮轴凸轮高度中减去。 差值是实际的凸轮生成 (5) 。

新凸轮的实际凸轮高度和规定凸轮高度的最大可允许差值 ... ± 0.10 mm (.004 in)

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