Inlet and Exhaust Valves - Remove and Install
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所需工具 | |||
工具 | 零件号 | 零件描述 | 数量 |
A | 5S-1330 | 气门弹簧压缩器 | 1 |
开始:
- 拆下缸盖。
注: 请参阅技术规格 UENR3421 "发动机设计",了解非指定的发动机扭矩值。
- 清洁缸盖底部配合面。 在拆卸气门弹簧之前,检查气门低于缸盖表面的深度。 请参阅技术规格, "缸盖气门",以了解正确的尺寸。
- 在气门头上作出临时的识别标记,以便确定正确的位置。
- 使用适当的起吊设备放好缸盖,使气门弹簧朝上。 缸盖的重量约为
23 kg (51 lb) 。Show/hide table图 1 g02784484 - 将工具 (A) 在缸盖 (2) 上安装到位,并压缩气门弹簧,以便拆下进气门和排气门 (1)。
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图 2 g02788459 Show/hide table被弹簧力爆出的零件击中,会招致人员伤害。
确保穿上所有必要的保护装备。
遵照建议的程序,并使用所有建议的工具以释放弹簧力。
Show/hide table注意 确保在四角均匀地压缩气门弹簧,否则可能会导致气门杆损坏。
- 向工具 (A) 施加足够的压力,以便拆下气门保持器 (3)。
- 缓慢地释放工具 (A) 上的压力。
- 在气门弹簧 (5) 上作一个临时识别标记,以便识别正确的位置。
- 拆下气门弹簧座 (4)。 拆下气门弹簧 (5) 以及进气门和排气门 (6)。
- 对其余气门重复步骤 4 至步骤 8。
- 拆下工具 (A)。
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图 3 g02784644 - 将气门杆密封件 (7) 从缸盖 (2) 上拆下。
- 使用适当的起吊设备,翻转缸盖 (2)。
- 拆下进气门和排气门。
- 按拆卸的相反顺序安装进气门和排气门 (6)。
- 清洁缸盖组件的所有部件。 确保缸盖的所有端口、冷却液通道和润滑通道中无碎屑。 更换任何损坏或磨损的部件。
- 使用清洁的发动机机油润滑进气门和排气门 (6) 的气门杆。 将进气门和排气门 (6) 安装在缸盖的相应位置中。 检查气门低于缸盖表面的深度。 有关更多资料,请参阅系统操作、测试和调整, "气门深度 - 检查"。
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