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凸轮轴部件的检查
Inspection of Camshaft Components
1
、
检查凸轮轴表面是否有磨损、毁坏现象及凸
轮轴两端的轴承转动是否灵活，如磨损现象
严重或轴承转动有发卡的现象，则应更换新
的凸轮轴部件。
Check the camshaft surface for wear and
damage, and the bearing rotation for
flexibility at both ends of camshaft; in case
of serious wear or unsmooth bearing
rotation, camshaft components shall be
replaced with new ones.
2
、
检查凸轮轴减压阀甩块组合是否有裂纹、破
裂等现象及减压阀离心甩块与减压阀芯轴
是否有松动的现象，如果有则需更换减压阀
甩块组合。
Check the reducing valve flail block
assembly of camshaft for crack and
fracture, and the reducing valve flail block
and spindle for looseness; if any, the
reducing valve flail block assembly shall be
replaced.
汽缸头的检查
Inspection of Cylinder Head
1
、
检查汽缸头的密封性是否良好，如果缸头的
密封性较差，则应更换新的气缸头和气门。
Check the cylinder head for airtightness;
for poor airtightness, the cylinder and valve
shall be replaced with new ones.
2
、
检查火花塞孔及气门座是否有裂纹。
Check spark plug hole and valve seat for
any crack.
3
、
检查汽缸头是否变形，并用刀口尺和塞尺检
查汽缸头的平面度。
Check the cylinder head for deformation,
and check the planeness of cylinder head
with knife straight edge and feeler gauge.
进气门
Intake v valves
排气门
Exhaust valves
火花塞
Spark plug
