DS 19 OPERATION No. DS 232-1 Work on the radiator and fan. Op. DS 232-1 163
TOOLS
CHECKING A THERMOSTAT
34 Immerse the thermostat in hot water. When the water reaches a temperature between 72 and 76
0
C, the valve
should commence to open.
35 When the thermostat is shaken in water at a temperature of 90
0
C, the valve should be fully open in less than
20 seconds.
NOTE - The thermostat cannot be repaired. If it does not satisfy the tests described above, it must be replaced.
PRECAUTIONS AGAINST FROST
36 The cooling system contains 19 pints (11 litres) of liquid. This mixture should contain 14 pints (8 litres) of water
and 5* pints (3 litres) anti-freeze.
Our Service Department issue technical notes indicating the anti-freeze materials approved by our laboratory.
It is also necessary to add to this mixture, an anti-rust product, the only inhibitor recommended by our
laboratory is the Chausson inhibitor (used in accordance with the instructions supplied).
It is advised that you check each year at the approach of cold weather, that the cooling system of your car
contains the prescribed dosage of anti-freeze and anti-rust.
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