3500 Engines Caterpillar


Camshaft

Usage:

3508C C8E


图 1g03333784
典型示例

表 1
技术规格 - 261-4683 凸轮轴总成、 381-1959 凸轮轴总成和 333-2238 凸轮轴总成 
项目  数量  零件  技术规格说明 
新凸轮轴组件上止推垫圈的槽尺寸为 8.75 ± 0.05 mm (0.344 ± 0.002 inch)。 
5B-5821 定位销  定位销从凸轮轴组件延伸的长度为 12.0 ± 0.5 mm (0.47 ± 0.02 inch)。 
7N-3218 止推垫圈  新止推垫圈的厚度为 8.50 ± 0.05 mm (0.335 ± 0.002 inch)。 
轴承轴颈的直径为 91.88 ± 0.02 mm (3.617 ± 0.001 inch)。 


图 2g02582241

表 2
项目  数量  零件  技术规格说明 
规定的凸轮轴凸轮升程:

进气凸轮为 13.25 mm (0.522 inch)
喷油器凸轮为 13.807 mm (0.5436 inch)
排气凸轮为 13.25 mm (0.522 inch)。 
使用以下步骤确定实际凸轮轴凸轮升程:
1. 测量凸轮轴凸轮高度 (F)。
2. 测量基圆 (G)。
3. 从凸轮轴凸轮高度值 (F) 中减去基圆 (G)。 二者之差就是实际凸轮轴凸角升程。 

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