QUANCHAI N485D, Руководство по обслуживанию

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ANHUI QUANCHAI ENGINE CO., LTD
2. Cylinder pressure
Reason:
The compression force of the cylinder is
insufficient, and the cylinder emits white smoke
during exhausting.
Equipment:
Pressure test gauge and open end wrench
Connection:
The sensor is connected to the preheating plug
hole and then connected to the pressure.
Test gauge
Test steps:
Connect to the first cylinder first, then connect
cylinders 2, 3 and 4 in turn, and observe changes
in the pressure gauge.
Specification
Pressure value: 2,400 kPa ± 175 kPa
Test results:
The following factors shall be taken into account
if the requirements are not met:
1) The valve leaks air.
2) The valve spring is broken.
3) The valve clearance is incorrect.
4) The piston ring is filled with carbon deposit,
jammed or worn.
5) The cylinder head gasket leaks air.