Cylinder Block
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图 1 | g01331473 |
(1) 隔板
- 隔板厚度 ... 9.970 ± 0.025 mm (0.3925 ± 0.0010 in)
- 隔板密封垫厚度 ... 0.196 ± 0.025 mm (0.0077 ± 0.0010 in)
注: 有关缸套伸出隔板顶部的高度资料,请参阅测试与调整, "缸套凸出量"。
(2) 主轴承盖螺栓
利用以下程序安装主轴承盖螺栓:
- 将 6V-4876 润滑油 涂覆在螺栓和垫圈表面上。
- 拧紧所有螺栓至扭矩为 41 ± 4 N·m (30 ± 3 lb ft)。
- 在每个螺栓和每个轴承盖上作一个标记。
- 将每个螺栓从标记处再拧紧 90 ± 5 度。
注: 安装主轴承盖,零件号朝向发动机前端。 确保螺栓孔附近轴承盖的标记(编号)与缸体的标记对齐。
(A) 主轴承孔中心与新缸体顶部之间的距离 ... 383.515 ± 0.165 mm (15.0990 ± 0.0064 in)
(B) 凸轮轴轴承
- 安装后的曲轴轴承孔 ... 58.80 ± 0.06 mm (2.315 ± 0.002 in)
- 缸体凸轮轴轴承孔 ... 65.100 ± 0.025 mm (2.5630 ± 0.0010 inh)
(C) 主轴承
- 缸体主轴承孔(标准尺寸) ... 96.926 ± 0.013 mm (3.8160 ± 0.0005 in)
- 缸体大尺寸主轴承孔 0.51 mm (0.020 in) ... 97.436 ± 0.013 mm (3.8361 ± 0.0005 in)
(D) 主轴承孔中心与新缸体底部之间的距离 ... 153.99 ± 0.10 mm (6.063 ± 0.004 in)
(E) 主轴承盖
- 主轴承盖与缸体之间的间隙(紧密间隙) ... 0.033 mm (0.0013 in)
- 主轴承盖与缸体之间的间隙(松散间隙) ... 0.043 mm (0.0017 in)
- 主轴承盖宽度 ... 165.095 ± 0.020 mm (6.4998 ± 0.0008)
- 缸体主轴承盖宽度 ... 165.100 ± 0.018 mm (6.5000 ± 0.0007 in)
- 主轴承盖与缸体之间的间隙(松散间隙) ... 0.043 mm (0.0017 in)
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图 2 | g01331482 |
(3) 活塞冷却喷嘴s |
注: 气缸之间的主轴承孔中有活塞冷却喷嘴孔。 这些孔必须安装有活塞冷却喷嘴 (3) 。
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图 3 | g01331474 |
(F) 两个定位销伸出缸体表面的距离 ... 19.8 ± 0.5 mm (0.78 ± 0.02 in)
(G) 空心定位销伸出缸体表面的距离 ... 16.0 ± 0.5 mm (0.63 ± 0.02 in)
(H) 将 6V-6640 密封胶 涂覆在定位销上。 缸体表面下方两个定位销的安装深度 ... 1.0 ± 0.5 mm (0.04 ± 0.02 in)
(J) 定位销伸出缸体前表面的距离 ... 22.4 ± 0.5 mm (0.88 ± 0.02 in)
(K) 双头螺栓伸出缸体前表面的距离 ... 15.7 ± 0.5 mm (0.62 ± 0.02 in)
Caterpillar Information System:
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