SsangYong Korando II (1996-2006 year). Manual — part 73
1A2 -- 6 GENERAL ENGINE INFORMATION
DAEWOO MY_2000
E20 ENGINE
GENERAL ENGINE INFORMATION 1A2 -- 7
DAEWOO MY_2000
DIAGNOSIS
OIL LEAK DIAGNOSIS
Most fluid oil leaks are easily located and repaired by
visually finding the leak and replacing or repairing the
necessary parts. On some occasions a fluid leak may be
difficult to locate or repair. The following procedures may
help you in locating and repairing most leaks.
Finding the Leak
1. Identify the fluid. Determine whether it is engine oil,
automatic transmission fluid, power steering fluid,
etc.
2. Identify where the fluid is leaking from.
2.1 After running the vehicle at normal operating
temperature, park the vehicle over a large sheet
of paper.
2.2 Wait a few minutes.
2.3 You should be able to find the approximate loca-
tion of the leak by the drippings on the paper.
3. Visually check around the suspected component.
Check around all the gasket mating surfaces for
leaks. A mirror is useful for finding leaks in areas that
are hard to reach.
4. If the leak still cannot be found, it may be necessary
to clean the suspected area with a degreaser, steam
or spray solvent.
4.1 Clean the area well.
4.2 Dry the area.
4.3 Operate the vehicle for several miles at normal
operating temperature and varying speeds.
4.4 After operating the vehicle, visually check the
suspected component.
4.5 If you still cannot locate the leak, try using the
powder or black light and dye method.
Powder Method
1. Clean the suspected area.
2. Apply an aerosol--type powder (such as foot powder)
to the suspected area.
3. Operate the vehicle under normal operating condi-
toins.
4. Visually inspect the suspected component. You
should be able to trace the leak path over the white
powder surface to the source.
Black Light and Dye Method
A dye and light kit is available for finding leaks, Refer to
the manufacturer’s directions when using the kit.
1. Pour the specified amount of dye into the engine oil fill
tube.
2. Operate the vehicle normal operating conditions as
directed in the kit.
3. Direct the light toward the suspected area. The dyed
fluid will appear as a yellow path leading to the
source.
Repairing the Leak
Once the origin of the leak has been pinpointed and
traced back to its source, the cause of the leak must be
determined n order for it to be repaired properly. If a gas-
ket is replaced, but the sealing flange is bent, the new
gasket will not repair the leak. The bent flange must be
repaired also. Before attempting to repair a leak, check
for the following conditions and correct them as they
may cause a leak.
Gaskets
D
The fluid level/pressure is too high.
D
The crankcase ventilation system is malfunctioning.
D
The fasteners are tightened improperly or the threads
are dirty or damaged.
D
The flanges or the sealing surface is warped.
D
There are scratches, burrs or other damage to the
sealing surface.
D
The gasket is damaged or worn.
D
There is cracking or porosity of the component.
D
An improper seal was used (where applicable).
Seals
D
The fluid level/pressure is too high.
D
The crankcase ventilation system is malfunctioning.
D
The seal bore is damaged (scratched, burred or
nicked).
D
The seal is damaged or worn.
D
Improper installation is evident.
D
There are cracks in the components.
D
The shaft surface is scratched, nicked or damaged.
D
A loose or worn bearing is causing excess seal wear.
GENERAL ENGINE INFORMATION 1A2 -- 9
DAEWOO MY_2000
COMPRESSION PRESSURE TEST
1 Compression Pressure Tester
2 Diagram Sheet
3 Adaptor
4 Sealing Cone
Standard Service Data
Compression Ratio
10.4, 9.6
Normal Engine Temperature
80°C
Normal Compression
P
E23 Engine(e = 10.4)
Min. 11 bar, Max. 15 bar
p
Pressure
E20 Engine(e = 9.6)
Min. 10.5 bar, Max. 14 bar
Permissible Pressure Difference Between Individual
Cylinders
Max. 1.5 bar
1A2 -- 10 GENERAL ENGINE INFORMATION
DAEWOO MY_2000
Measuring Procedure
1. Warm the engine up to normal operating tempera-
ture.
2. Remove the spark plugs.
3. Place the diagram sheet to compression pressure
tester.
4. Connect the adaptor to compression pressure tester
and install it into the spark plug hole.
5. Crank the engine approx. eight revolutions by using
the start motor.
6. Compare the measurements of compression pres-
sure tester with the specifications.
7. Measure the compression pressure of the other cylin-
ders in the same way.
8. If measured value is not within the specifications, per-
form the cylinder pressure leakage test.
Notice
D
Discharge the combustion residues in the cylinders
before testing the compression pressure.
D
Apply the parking brake before cranking the engine.
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