Cylinder Head Valves
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。
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| 图 1 | g01381203 |
(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)
- 试验力 ... 344 ± 34 N (77 ± 7.6 lb)
(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)
- 进气门 ... 9.309 mm (0.3665 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
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| 图 2 | g01381208 |
(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)
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