- Select the menu on the "ACTIVE DIAGNOSIS"
function and start the electric fan operation simu-
lation (see "Injection" chapter).
- If the electric fan is certainly efficient, check the
ventilation start and end temperature.
- Select the "PARAMETERS" function in the menu
to display the coolant temperature.
Electric fan starts: 105°C
Electric fan stops: 100°C
- If non-conforming values are detected, replace
the injection control unit (see «Injection» Chapter).
- If the analogue instrument temperature is close
to the red zone, but the degrees indicated by the
diagnostic tester are below the electric fan start
temperature, check the temperature sensor on the
head and the relevant injection circuit (see «Injec-
tion» chapter);
N.B.
THE ELECTRIC FAN TEMPERATURE AT 105° C CAN ONLY BE MANAGED BY A SYSTEM SUP-
PLIED WITH A 50% MIXTURE AND PRESSURISED AT 0.9 BAR.
System sealing check
- Check the proper circuit sealing when it is in
pressure and at the temperature.
- For a more accurate check, wait until the system
has cooled down since small leaks may not be
visible due to evaporation
- The water pump is provided with a drainage hole
in case of leaks from the cooling system mechan-
ical seal, or from the shaft sealing oil guard.
- If coolant or oil leaks are detected, replace the pump (see «Flywheel Cover» Chapter).
N.B.
DO NOT USE OILS OR GREASES WHILE MOUNTING THE COOLING SYSTEM. FAILURE TO OB-
SERVE THIS REGULATION CAN CAUSE IRREVERSIBLE DEFORMATION TO THE SEALING
GASKETS.
Cooling system Fuoco 500 i.e.
COOL SYS - 4
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