3406E Truck Engine Caterpillar


Valve Mechanism

Usage:

3406E 1LW



图 1g00579258

典型实例

(1) 气门摇臂组件

(2) 调整螺钉的锁紧螺母

将调整螺钉的锁紧螺母拧紧至以下扭矩。 ... 30 ± 7 N·m (22 ± 5 lb ft)

注: 如果发动机配备有压缩制动器,用压缩制动器的安装螺栓代替螺栓 (3) 。 请参阅技术规格, "压缩制动器"。

(3) 螺栓

将螺栓再次拧紧至以下扭矩。 ... 109 ± 15 N·m (80 ± 11 lb ft)

(4) 摇臂轴

新摇臂轴的直径 ... 40.000 ± 0.010 mm (1.5748 ± 0.0004 in)
摇臂轴的新摇臂轴承孔径 ... 40.065 ± 0.015 mm (1.5774 ± 0.0006 in)
摇臂轴的磨损摇臂轴承的最大孔径 ... 40.193 mm (1.5824 in)

(5) 气门间隙

进气门 ... 0.38 ± 0.08 mm (0.015 ± 0.003 in)
排气门 ... 0.76 ± 0.08 mm (0.030 ± 0.003 in)

注: 请参阅测试与调整, "发动机气门间隙 - 检查 / 调整",以了解设置发动机气门间隙的正确程序。

(6) 凸轮轴

(7) 气门桥组件

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