Hyundai 20G-7, Руководство по обслуживанию

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GENERAL
2-16
TROUBLESHOOTING
1. Checking coolant leaks
1) After the coolant temperature drops below 38°C loosen
the radiator cap.
2) Check that the coolant level reaches filler neck.
3) Install the radiator cap tester to the radiator filler neck
and apply a pressure of 1.4kg/cm
2
.
While maintaining it for 2 minutes, check the radiator,
hose, and connecting part for leak.
CAUTION
• Because the coolant in the radiator is too hot,
never open the cap when it hot, or injury may
occur due to an outburst of hot water.
• Dry out the inspection part.
• When removing the tester, take care not to
spill the coolant.
• When removing/installing the tester as well
as testing, take care not to deform the filler
neck.
4) Replace parts if leak is detected.
2. Density test
1) Measure density of the coolant using a hydrometer.
2) After measuring the coolant temperature, calculate den-
sity using the following table of temperature and density.
Temperature and density of coolant (Temp.:°C)
-16
-20
-25
-30
-36
-42
-50
3. Temperature and density of coolant
10
1.054
1.063
1.071
1.079
1.087
1.095
1.103
20
1.050
1.058
1.067
1.074
1.082
1.090
1.098
30
1.046
1.054
1.062
1.069
1.076
1.084
1.092
40
1.042
1.049
1.057
1.064
1.070
1.077
1.084
50
1.036
1.044
1.052
1.058
1.064
1.070
1.076
-16
-20
-25
-30
-36
-42
-50
30%
35%
40%
45%
50%
55%
60%
Freezing point(°C)
Normal operating
temperature(°C) Coolant
temperature