MAINTENANCE MANUAL OF ENGINE
130
2. Inspecting cylinder pressure
Cause:
It is used to inspect whether there is white
smoke resulting from insufficient compressive force
of the cylinder.
Equipment:
Pressure tester, open-end spanner
Connection:
The sensor is inserted into the glow plug hole,
and then a pressure tester is connected.
Testing steps:
1. Connect the pressure tester in the 1st cylinder,
and turn the crankshaft, as well as observe the
change in reading of the pressure tester;
2. After testing the 1st cylinder, inspect pressure of
the remaining cylinders by the same steps above in
sequence.
Specification
Pressure value: 2400 kPa±175 KPa
Test results:
In case of out of specification results, it is required
to take account of following factors:
1. Air leakage of the valve
2. The valve spring is broken.
3. Wrong valve clearance
4. Carbon deposit, blockage or wear of the
piston ring.
5. Air leakage of the cylinder head gasket.