3612 and 3616 Engines Caterpillar


Camshaft - Earlier

Usage:

3616 1PD



图 1g00527019

(1) 新的止推垫圈的厚度 ... 11.80 ± 0.05 mm (0.465 ± 0.002 in)

凸轮轴和止推垫圈之间槽的厚度 ... 12.00 ± 0.05 mm (0.472 ± 0.002 in)

(2) 凸轮轴轴颈的直径 ... 173.80 ± 0.03 mm (6.843 ± 0.001 in)

安装后凸轮轴轴承的孔径 ... 174.000 ± 0.050 mm (6.8504 ± 0.0020 inch)




图 2g00527253

凸轮轴轴承轴颈上定位销的位置




图 3g00574964

凸轮轴轴承轴颈上定位销的位置


注意

在组装时应遵守正确的凸轮段关系(正时)。 如果凸轮段不合拍,将发生严重的发动机损坏。


注: 与可变定位销相关的单个定位销的位置取决于凸轮轴轴颈的指定字符。 单个定位销和定位槽在同一端。 可变定位销和定位槽在同一端。

(3) 凸轮轴轴颈表面单个定位销的位置

从定位销顶面到凸轮轴轴颈之间的距离 ... 15.0 ± 0.5 mm (0.59 ± 0.02 inch)

(4) 定位槽




图 4g00575316

3612 凸轮轴轴颈的字母标识

(5) 3612 凸轮轴必须组装到装配工具或缸体内。

轧制扭矩最大为以下值。 ... 22 N·m (16 lb ft)




图 5g00595621

3616 凸轮轴轴颈的字母标识

(6) 3616 凸轮轴必须组装到装配工具或缸体中。

轧制扭矩最大为以下值。 ... 28 N·m (21 lb ft)

(7) 凸轮轴轴承轴颈

安装凸轮轴轴承轴颈,使槽端朝向发动机前侧。

(8) 凸轮轴凸轮段

安装凸轮轴块,使槽面法兰朝向 SAE 标准旋转发动机的前端。 安装凸轮轴块,使槽面法兰朝向 SAE 反向旋转发动机的后端。

(9) 将凸轮轴凸轮段的螺栓拧紧至以下扭矩。 ... 135 ± 15 N·m (100 ± 11 lb ft)

(10) 发动机后部




图 6g00527486

(11) 规定的凸轮凸角升程

为了找到规定的凸轮轴凸轮升程,请使用以下步骤:

  1. 测量凸轮轴 (12) 的总高度。

  1. 测量基圆 (13) 。

  1. 从凸轮轴 (12) 的总高度中减去基圆 (13) 。 所得的差就是规定的凸轮凸角升程 (11) 。

  1. 凸轮轴的规定凸轮凸角升程 (11) 为以下值:

    排气凸轮 ... 19.500 mm (0.7677 in)

    进气凸轮 ... 19.500 mm (0.7677 in)

    喷油泵凸轮凸角 ... 21.473 mm (0.8454 in)

Caterpillar Information System:

CIPI UNDERCARRIAGE Arrangements: 1667049, 2372904, 3Q6481, 6Z7988, 6Z7989, 9Q5032, 9Q5040, 9Q5043, 9Q5046, 9Q5047, 9Q5066, 9Q5074, 9Q5097, 9Q5098, 9Q5116, 9Q5134, 9Q5136, 9Q5142, 9Q5147, 9Q5148, 9Q5149, 9Q5172 and 9Q5204 Track Roller - Install
CIPI UNDERCARRIAGE Arrangements: 9Q5221, 9Q5234, 9Q5243, 9Q5245, 9Q5246, 9Q5247, 9Q5385, 9Q5433, 9Q5482, 9Q5622, 9Q5661, 9Q5719, 9Q5720, 9Q5721, 9Q5722, 9Q5830, 9Q5840, 9Q5857, 9Q5874, 9Q5883, 9Q5930 and 9Q5940 Track Roller - Remove
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CIPI UNDERCARRIAGE Arrangements: 1667049, 2372904, 3Q6481, 6Z7988, 6Z7989, 9Q5032, 9Q5040, 9Q5043, 9Q5046, 9Q5047, 9Q5066, 9Q5074, 9Q5097, 9Q5098, 9Q5116, 9Q5134, 9Q5136, 9Q5142, 9Q5147, 9Q5148, 9Q5149, 9Q5172 and 9Q5204 Track Carrier Roller - Assemble
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CIPI UNDERCARRIAGE Arrangements: 9Q5221, 9Q5234, 9Q5243, 9Q5245, 9Q5246, 9Q5247, 9Q5385, 9Q5433, 9Q5482, 9Q5622, 9Q5661, 9Q5719, 9Q5720, 9Q5721, 9Q5722, 9Q5830, 9Q5840, 9Q5857, 9Q5874, 9Q5883, 9Q5930 and 9Q5940 Track Carrier Roller - Disassemble
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