3500 Spark Ignited Engines Caterpillar


Valve Mechanism

Usage:

G3508 2JF



图 1g00547202

(1) 气门调整螺钉锁紧螺母

扭矩 ... 70 ± 15 N·m (50 ± 11 lb ft)

(2) 摇臂轴

直径 ... 37.084 ± 0.013 mm (1.4600 ± 0.0005 in)
摇臂轴轴承孔孔径 ... 37.140 ± 0.015 mm (1.4622 ± 0.0006 in)

(3) 气门间隙

进气门 ... 0.51 mm (0.020 in)
排气门 ... 1.27 mm (0.050 in)

(4) 定位销高度

至定位销顶部的高度 ... 66.5 ± 0.5 mm (2.62 ± 0.02 inch)

(5) 气门桥调整螺钉锁紧螺母

扭矩 ... 30 ± 4 N·m (22 ± 3 lb ft)

(6) 气门挺柱

直径 ... 29.900 ± 0.010 mm (1.1772 ± 0.0004 in)
缸盖内的孔 ... 30.000 ± 0.025 mm (1.1811 ± 0.0010 in)

(7) 定位销

直径 ... 11.008 ± 0.003 mm (0.4334 ± 0.0001 in)
气门桥上的定位销孔 ... 11.07 ± 0.03 mm (0.436 ± 0.001 in)
缸盖上的定位销孔l ... 10.968 ± 0.020 mm (0.4318 ± 0.0008 in)

(8) 摇臂轴安装螺栓

扭矩 ... 120 ± 20 N·m (90 ± 15 lb ft)

(9) 导向弹簧

弹簧导向杆不能再次使用。 每次都必须安装新的导向弹簧。

Caterpillar Information System:

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3176C and 3196 Engines For Caterpillar Built Machines Camshaft Gear - Remove and Install
3176C and 3196 Engines For Caterpillar Built Machines Accessory Drive - Assemble
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3176C and 3196 Engines For Caterpillar Built Machines Crankshaft Rear Seal Carrier - Remove and Install
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