SSANGYONG Korando 2012 Manual page 140

3. CHECK AND INSPECTION
1) Cylinder
(1) Compression pressure test
▶ Specified value
Compression ratio
Test condition
Compression pressure
Differential limit between cylinders
The compression pressure test is to check the conditions of internal components (piston, piston
ring, intake and exhaust vale, cylinder head gasket). This test provides current engine operating
status.
- Before cranking the engine, make sure that the test wiring, tools and persons are keeping away
from moving components of engine (e.g., belt and cooling fan).
- Park the vehicle on the level ground and apply the parking brake.
- Do not allow anybody to be in front of the vehicle.
(2) Cylinder pressure leakage test
▶ Specified value
Test condition: normal engine operating
temperature (80˚C)
Whole engine
at valve and cylinder head gasket
at piston ring
If the measured value of the compression pressure test is not within the specifications, perform
the cylinder pressure leakage test.
- Perform this test in the sequence of firing order.
- Do not test the cylinder pressure leakage with wet type test procedure. (do
not inject the engine oil into the combustion chamber)
at normal operating temperature (80˚C)
Standard
Minimum
0000-00
16.5 : 1
32 bar
18 bar
Maximum 3 bar
Specified value
below 25%
below 10%
below 20%
02-11