3176C and 3196 Industrial Engines Caterpillar


Cylinder Head Valves

Usage:

3196 1DW



图 1g01433246

注: 装入缸盖中前,先用 8T-2998 润滑剂 涂覆进气门杆和排气门杆。

(1) 进气门

(2) 排气门

(A) 气门导管中的台阶高度 ... 22.00 ± 0.50 mm (.866 ± .020 in)

(3) 224-4441 弹簧

组装长度 ... 50.47 mm (1.987 in)
组装长度上的负载 ... 160 ± 13 N (36 ± 3 lb)
工作长度(最小) ... 34.92 mm (1.37 in)
最小工作长度上的负载 ... 385 ± 18 N (87 ± 4 lb)
测试后的自由长度 ... 64.1 mm (2.52 in)
外径 ... 23.24 mm (0.915 in)

(4) 214-0586 弹簧

组装长度 ... 52.95 mm (2.085 in)
组装长度上的负载 ... 320 ± 31 N (72 ± 7 lb)
工作长度(最小) ... 37.40 mm (1.472 in)
最小工作长度上的负载 ... 860 ± 34 N (190 ± 7 lb)
测试后的自由长度 ... 62.7 mm (2.47 in)
外径 ... 34.0 mm (1.33 in)

(B) 新气门杆直径 ... 9.441 ± 0.008 mm (.3717 ± .0003 in)

如果符合气门杆的最小尺寸要求,气门可以再用。

进气 ... 9.309 mm (0.3665 inch)
排气 ... 9.309 mm (0.3665 inch)

气门导管的技术规格

安装到缸盖中后,气门导管孔尺寸如下。 ... 9.484 ± 0.026 mm (.3734 ± .0010 in)
气门导管可以再用。 气门导管孔径不得大于以下数值。 ... 9.538 mm (.3755 in)

(C) 气门头直径

进气门 ... 45.00 ± 0.13 mm (1.772 ± .005 in)
排气门 ... 42.00 ± 0.13 mm (1.654 ± .005 in)

(D) 气门座镶圈端面角度

进气门 ... 29.25 ° ± .25 °
排气门 ... 45.25 ° ± .25 °



图 2g01416218

(E) 缸盖中气门座镶圈孔的深度

进气 ... 15.00 ± 0.05 mm (.591 ± .004 in)
排气 ... 14.10 ± 0.05 mm (.555 ± .004 in)

注: 通过降低温度使气门座圈收缩。 收缩座圈可以令其装入沉孔中。

(F) 气门座镶圈

气门座镶圈的直径(进气门) ... 46.025 ± 0.013 mm (1.8120 ± .0005 in)
缸盖中的气门座镶圈孔径(进气门) ... 45.961 ± 0.013 mm (1.8095 ± .0005 in)
气门座镶圈的直径(排气门) ... 43.390 ± 0.015 mm (1.7083 ± .0006 in)
缸盖中的气门座镶圈孔径(排气门) ... 43.320 ± 0.025 mm (1.7055 ± .0010 in)

(G) 气门端面角度

进气阀面角 ... 29 1/4 ± 1/4 度
排气门面角 ... 44 1/4 ± 1/4 度

(H) 气门唇最小厚度

进气门 ... 2.51 mm (.099 in)
排气门 ... 2.03 mm (.080 in)



图 3g01433254

(J) 气门杆最大偏差

进气门到进气门 ... 0.66 mm (.026 in)
排气门到排气门 ... 0.66 mm (0.026'')

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