C4.4 Industrial Engine Caterpillar


Cylinder Head

Usage:

C4.4 444



图 1g01250785

典型实例

用干净的发动机机油润滑螺纹和螺栓头的下部。

按图 1 中所示的顺序将螺栓拧紧到以下扭矩。 ... 50 N·m (37 lb ft)
再次将螺栓拧紧至以下扭矩。 ... 100 N·m (74 lb ft)
将螺栓头拧紧到附加量。 ... 225 度

缸盖最小厚度 ... 100.95 mm (3.9744 inch)




图 2g01455374

注: 缸盖底面的最大失真见下表 1。

表 1
尺寸     最大允许变形    
宽度 (A)    
0.03 mm (0.0018 inch)    
长度 (B)    
0.05 mm (0.0019 in)    
对角线 (C)    
0.05 mm (0.0019 in)    



图 3g01335214

典型实例

(1) 阀门导管孔

进气和排气 ... 5.979 至 5.992 mm (0.2354 至 0.2359 in)

(2) 阀门深度

进气 ... 0.905 至 1.163 mm (0.0356 至 0.0458 in)
进气门深度的维修极限 ... 1.41 mm (0.0555 in)
排气 ... 0.876 至 1.131 mm (0.0345 至 0.0445 in)
排气门深度的维修极限 ... 1.38 mm (0.0543 in)

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