Engines Iveco C10,C13, Cursor 10, Cursor 13. Instruction - page 8
COOLING
Description
The engine cooling system is of the closed-circuit, forced circulation type.
It consists mainly of the following components:
- expansion tank, not supplied;
- a heat exchanger to cool down lubrication oil;
- a water pump with centrifugal system incorporated in the cylinder block;
- fan, not supplied;
- a 2-way thermostat controlling the coolant circulation.
Operation
The water pump is actuated by the crankshaft through a poli-V belt and sends coolant to the cylinder block, especially to the
cylinder head (bigger quantity). When the coolant temperature reaches and overcomes the operating temperature, the
thermostat is opened and from here the coolant flows into the radiator and is cooled down by the fan.
The pressure inside the system, due to temperature change, is adequately controlled through the expansion vessel.
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CURSOR ENGINES F3A
SECTION 1 - GENERAL SPECIFICATIONS
Base - May 2007
Figure 33
104238
Water flowing out of the thermostat
Water circulating in the engine
Water flowing into the pump
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SECTION 1 - GENERAL SPECIFICATIONS
CURSOR ENGINES F3A
Base - May 2007
104239
Figure 34
Figure 35
Figure 36
Thermostat
The water pump consists of: rotor, shaft with bearing,
T-gasket and drive pulley with dust shield.
Check that the pump body has no cracks or water
leakage; if it does, replace the entire water pump.
CROSS-SECTION OF THE WATER PUMP
View of thermostat operation
60747
Water circulating in the engine
TO THE
EXPANSION
TUB
FROM
THE ENGINE
TO THE
BY PASS
Water leaving the thermostat
60748
TO THE
RADIATOR
TO THE
EXPANSION
TUB
TO THE
BY PASS
FROM
THE ENGINE
Check the thermostat works properly; replace it if in doubt.
Temperature of start of travel 84
°C ±2°C.
Minimum travel 15 mm at 94
°C ±2°C.
TO THE
RADIATOR
Water pump
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CURSOR ENGINES F3A
SECTION 1 - GENERAL SPECIFICATIONS
Base - May 2007
Figure 37
TURBOCHARGING
The turbocharging system consists of:
- air filter;
- Wastegate turbocharger.
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1. TURBOCHARGER HX55
Exhaust gas
Inlet air
Compressed air (hot)
Intake compressed air
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SECTION 1 - GENERAL SPECIFICATIONS
CURSOR ENGINES F3A
Base - May 2007