diagnosis
Excessive system pressure
1 - Check the expansion tank cap efficiency.
N.B.
THE CAP IS PROVIDED WITH AN OVERPRESSURE VALVE CALIBRATED AT 0.9 BAR.
There is also a valve that must allow air inlet during the cooling step.
YES go to 2 NO go to 3
2 - Check the head gasket seal (see "Thermal unit and timing system" chapter)
3 - Replace the cap.
Cooling fluid consumption
1 - Check the system outside seals as described above.
YES go to 2 NO go to 3
2 - Check the head gasket seal (see "Thermal unit and timing system" chapter)
- If water leaks are detected in the engine oil, inspect the pad on the head cooling circuit.
3 - Fix any damaged seals.
Oil in the fluid
1 - Oil into the coolant.
YES go to 2
2 - Check the head gasket seal (see "Thermal unit and timing system" chapter)
Fuoco 500 i.e. Cooling system
COOL SYS - 7
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