12. Cylinder cover
Preparation materials---------------12.1
Failure diagnosis ---------------12.2
Cylinder cover -----------------12.3
Checking of cylinder cover -------------12.4
Assembly of cylinder cover -------------12.5
12.1 Preparation materials
Attentions
In order to guarantee the seal between cylinder cover and cylinder block, the cylinder cover would withstand very
big pre-tightening force of bolt. Pre-tightening force value: 50Nm
All components should be washed and blew with compressed air before checking.
Functions of cylinder cover: The cylinder cover is used to seal the cylinder and constitute combustion chamber
with piston withstanding high temperature and high pressure gas. Besides, inlet and exhaust would be achieved
through valve actuating mechanism
12.2 Failure diagnosis
In the process of operation, air leak existed between cylinder cover and cylinder block or excessive high
combustion pressure.
Cylinder cover gasket is broken through
Bottom plane of cylinder cover is warp
Too much carbon in the combustion chamber
12.3 Cylinder cover
12.3.1Disassembly
Loosen fixing bolt of wind guide cover.
Dismantle the wind guide cover.
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