3612 and 3616 Engines Caterpillar


Cylinder Head Valves

Usage:

3616 1PD



图 1g01288424

(1) 阀导管

安装的阀导管的内径 ... 16.031 ± 0.028 mm (0.6311 ± 0.0011 in)

(2) 安装的阀导管的高度 ... 20.0 ± 2.0 mm (0.79 ± 0.08 in)

(3) 1W-1749 弹簧 (内弹簧)

在试验力下的长度 ... 79.3 mm (3.12 in)
试验力 ... 361 ± 36 N (80 ± 8 lb)
试验后的自由长度 ... 107.0 mm (4.21 in)
外径 ... 47.9 mm (1.89 in)

(4) 1W-1748 弹簧 (外弹簧)

在试验力下的长度 ... 84.9 mm (3.34 in)
试验力 ... 758 ± 76 N (170 ± 17 lb)
试验后的自由长度 ... 114.0 mm (4.49 in)
外径 ... 68.0 mm (2.68 in)

(5) 关于阀面的角度,请参阅表 1。

表 1
零件号     阀面的角度    
4P-2854     20.25 ± 0.10 度    
201-8114     29.87 ± 0.08 度    
9Y-6232     30.25 ± 0.10 度    
4P-3079     30.25 ± 0.10 度    



图 2g01288284

进气阀和排气阀

(6) 新的阀座镶圈的孔深 ... 24.00 ± 0.15 mm (0.945 ± 0.006 in)

(7) 气门杆

8T-2998 润滑剂 涂在进气阀杆和排气阀杆上。
新阀杆的直径 ... 15.98 ± 0.007 mm (0.62913 ± 0.00028 inch)

(8) 阀座镶圈和孔

阀座镶圈的直径 ... 97.195 ± 0.015 mm (3.8266 ± 0.0006 in)
阀座镶圈顶部的孔径 ... 97.000 ± 0.025 mm (3.8189 ± 0.0010 in)

(9) 关于阀座镶圈表面的角度,请参阅表 2。

气门和座圈之间的表面均要求 360 度的完全接触。

表 2
镶圈部件号     阀座镶圈表面的角度    
171-3992     20.25 ± 0.10 度    
203-9566 (1)     20.25 ± 0.10 度    
272-5886 (2)     20.25 ± 0.10 度    
160-5770     30.25 ± 0.10 度    
160-5771     30.25 ± 0.10 度    
160-5769     30.25 ± 0.10 度    
( 1 ) 0.05 mm (0.002 inch) 加大尺寸的阀座镶圈的外径
( 2 ) 1.0 mm (0.039 inch) 加大尺寸的阀座镶圈的外径

(10) 阀的凹进量和凸出量

从关闭阀的表面至缸盖表面的最大凹进量 ... 2.0 mm (0.08 inch)
缸盖表面上关闭气门的最大突出量 ... 0.50 mm (0.020 inch)

(11) 阀的外径

进气门 ... 90.00 ± 0.20 mm (3.543 ± 0.008 in)
排气门 ... 90.00 ± 0.20 mm (3.543 ± 0.008 in)

(12) 新阀门的唇部厚度 ... 7.44 ± 0.2 mm (0.29291 ± 0.00787 inch)

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