3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Cylinder Head Valves

Usage:

769C 01X
注: 再使用和修补指南, "气门和气门弹簧技术规范"有用于检查使用过的气门和弹簧的必要步骤和技术规范。


图 1g01381203

(1) 4N-5906 弹簧

在试验力下的长度 ... 54.99 mm (2.165 in)
试验力 ... 344 ± 34 N (77 ± 7.6 lb)
试验后的自由长度 ... 62.74 mm (2.470 in)
外径 ... 31.75 mm (1.250 in)

(A) 至气门导管顶部的高度 ... 32.26 mm (1.270 in)

注: 安装到缸盖上之前,在气门杆上涂抹清洁的发动机机油。

(B) 新气门杆的直径 ... 9.441 ± 0.010 mm (0.3717 ± 0.0004 in)

缸盖中用于气门杆的最小直径

排气门 ... 9.309 mm (0.3665 in)
进气门 ... 9.309 mm (0.3665 in)
缸盖中用于安装新气门杆的孔 ... 9.487 ± 0.020 mm (0.3735 ± 0.0008 in)

(C) 气门盖直径

排气门 ... 41.81 ± 0.13 mm (1.646 ± 0.005 in)
进气门 ... 44.98 ± 0.13 mm (1.771 ± 0.005 in)

(D) 气门端面角度

排气门 ... 44.25 ± 0.25 度
进气门 ... 29.25 ± 0.25 度



图 2g01381208

(E) 气门座圈的直径

排气门 ... 42.850 ± 0.013 mm (1.6870 ± 0.0005 in)
进气门 ... 46.025 ± 0.013 mm (1.8120 ± 0.0005 in)

(F) 缸盖中用于新气门座圈的孔深 ... 15.7 ± 0.5 mm (0.62 ± 0.02 in)

缸盖上的气门座孔

排气门 ... 42.774 ± 0.025 mm (1.6840 ± 0.0010 in)
进气门 ... 45.949 ± 0.025 mm (1.8090 ± 0.0010 in)

(G) 气门的突出高度

进气门和排气门从缸盖面的最大允许突出量 ... −1.219 至 0.203 mm (−0.0480 至 0.0080 in)

(H) 气门座圈的面角

排气门 ... 44.75 ± 0.50 度
进气门 ... 30.25 ± 0.50 度

(J) 气门座圈端面

排气门座 ... 39.268 mm (1.5460 in)
进气门座 ... 40.894 mm (1.6100 in)

Caterpillar Information System:

AccuGrade® Laser (CB420) CB 36 Left Elevation Sensor Missing
AccuGrade® Laser (CB420) CB 34 VM Fault
AccuGrade® Laser (CB420) CB 33 VM Fault
587R Pipelayer Engine Supplement Engine Side Guards - Remove and Install
AccuGrade® Laser (CB420) CB 32 ECM Disconnected
834H Wheel Dozer and 836H Landfill Compactor Electrohydraulic System Visual Inspection
CB-434D and CB-434D XW Vibratory Asphalt Compactor Machine Systems Relief Valve (Steering) - Test and Adjust
120M and 12M Motor Graders Braking and Hydraulic Fan System Hydraulic Fan System
AP655D and BG655D Asphalt Pavers Propel System Bogie (Steel Track) - Front
450E Backhoe Loader Machine Systems Extendable Stick Cylinder - Remove and Install
AP655D and BG655D Asphalt Pavers Propel System Bogie (Steel Track) - Center
422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Transmission (Standard Shift) Transmission (Standard Shift) - All Wheel Drive
2009/12/11 A New Alternator Drive Pulley with an Improved Wear Sleeve is Used {1405, 1425}
16M Motor Grader Machine Systems Circle - Remove
450E Backhoe Loader Machine Systems Extendable Stick - Remove and Install
587R Pipelayer Engine Supplement Hood and Dust Ejector - Remove and Install
3408E and 3412E Engines for Caterpillar Built Machines Valve Mechanism Cover
416E, 420E and 430E Backhoe Loaders Transmission (Standard Shift) Solenoid Valve (Standard Shift)
414E, 416E, 420E, 422E, 428E, 430E, 432E, 434E, 442E and 444E Backhoe Loaders Transmission (Standard Shift) Solenoid Valve (Standard Shift)
16M Motor Grader Machine Systems Circle - Install
587R Pipelayer Machine Systems Flushing Valve - Disassemble
2007/07/16 An Improved Elbow in the Air Lines Group Has Increased Durability {1071}
587R Pipelayer Machine Systems Flushing Valve - Assemble
2007/06/18 An Improved Tube Assembly Is Now Used for the Air Conditioning System {7320}
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.