C7.1 Engines Caterpillar


Exhaust Manifold - Remove and Install - Top Mounted Exhaust Manifold

Usage:

525D 2L5

拆卸步骤

  1. 拆下涡轮增压器。 有关正确的步骤,请参阅拆解和组装, "涡轮增压器 - 拆卸"。


    图 1g03409919


    图 2g03409920

  2. 按相反的数字顺序松开螺栓 (2)。 参考图 2。

    注: 按相反的数字顺序松开螺栓可防止排气歧管变形。

  3. 将螺栓 (2) 和隔套 (3) 从排气歧管 (4) 上拆下。

    注: 在螺栓拆卸过程中,支撑歧管。

  4. 将排气歧管 (4) 从缸盖上拆下。

  5. 拆下密封垫 (1)(未显示)和密封垫 (6)(未显示)。

  6. 如有必要,将螺柱 (2) 从排气歧管 (3) 上拆下。

顶装式排气歧管安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
366-1819  导向螺柱 
366-1820  导向螺柱 
Loctite 575 


图 3g03409921


图 4g03409919

  1. 确保排气歧管清洁且无损坏。 如有必要,更换排气歧管。 清洁缸盖的密封垫表面。

  2. 如有必要,将螺柱 (5) 安装到排气歧管 (3) 上。 拧紧螺柱至扭矩为 18 N·m (13 lb ft)

  3. 将新密封垫 (1)(未显示)和新密封垫 (6)(未显示)定位在缸盖上。 将工具 (A) 和工具 (B) 安装到缸盖上的位置 (X)。 参考图 3。

    注: 确保密封垫上的文字TOP(顶部)处于朝外朝上位置。

  4. 将排气歧管 (4) 与工具 (A) 和工具 (B) 对齐。 将排气歧管安装到缸盖上。

  5. 如果先前有使用过螺栓 (2), 彻底清洁螺栓的螺纹。 将工具 (C) 涂敷到螺栓的前两个螺纹上。 应将工具 (B) 涂覆到螺栓的前两圈螺纹上。

    注: 不要将工具 (C) 涂敷到新螺栓上。

  6. 安装螺栓 (2) 和隔套 (3),用手拧紧。

  7. 拆下工具 (A) 和工具 (B)。 安装其余的螺栓 (2) 和隔套 (3),用手拧紧。

  8. 拧紧螺栓 (2) 至扭矩为 44 N·m (32 lb ft)。 按照图 3 中所示的顺序拧紧螺栓。

  9. 安装涡轮增压器。 有关正确的步骤,请参考拆解和组装, "涡轮增压器 - 安装"。

Caterpillar Information System:

C7.1 Engines Exhaust Manifold - Remove and Install - Side Mounted Exhaust Manifold
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