共
50
页
第
4
页
Page 4 of 50
汽缸头和气门
Cylinder Head and Valve
维修须知
Maintenance instructions
故障排除
Troubleshooting
汽缸头盖的拆卸
Removal of cylinder head cover
汽缸头的拆卸
Removal of cylinder head
汽缸头盖的分解
Disassembling of cylinder head cover
气缸头的分解
Disassembling of cylinder head
气门和气门弹簧的检查
Inspection of valve and valve spring
摇臂及摇臂轴的检查
Inspection of rocker arm and rocker arm shaft
凸轮轴部件的检查
Inspection of camshaft components
汽缸头的检查
Inspection of cylinder head
气门座的检查、研磨
Inspection and grinding of valve seat
气门导管的检查
Inspection of valve guide
气门导管的更换
Replacement of valve guide
测量气门座接触面的宽度
Width measurement of valve seat contact
surface
汽缸头的组装
Assembling of cylinder head
气缸头盖的组装
Assembling of cylinder head cover
汽缸头的安装
Installation of cylinder head
气缸头盖的安装
Installation of cylinder head cover
维修须知
Maintenance Instructions
注意事项：
Notes:
● 凸轮轴是由缸头上油道孔供油润滑的，缸头上的油道绝对不能有异物进入，并保持畅通。
The camshaft is lubricated with oil supplied through the cylinder head oil passage hole,
which shall never have foreign matters and shall be kept unblocked.
● 在安装汽缸头之前，缸头定位销一定要装配好。
Before installation of cylinder head, the cylinder head dowel pins shall be well assembled.
● 凸轮轴不能有划伤痕迹，装配时先打上机油。
The camshaft shall have no scratch marks and be applied with oil before being assembled.
各部件维修参数
Maintenance parameters of components
项目
Item
标准值
mm
Standard Value
(mm)
维修极限值
mm
Maintenance
Limit Value (mm)
摇臂与缸头盖摇臂开档的轴向间隙
Axial clearance between rocker arm and cylinder
head cover
0.05
～
0.3
0.5
