Technical data

38
Cooling system
Cooling system 2001, 2002, 2003
Sea water cooled (standard)
1. Thermostat
2. Distribution manifold
3. Sea water pump
Cooling system 2003T
Fresh water system
1. Heat exchanger
2. Expansion tank
3. “By-pass” pipe (water flow with closed thermostat)
4. Thermostat
5. Circulation pump
6. Distribution manifold
7. Turbo*
2003T-B
2003T-A
1
2
3
Sea water system
1. Exhaust pipe
2. Heat exchanger
3. Oil cooler
4. Sea water pump
5. Reversing gear
1
2
3
4
5
1
1
2
2
4
4
7
7
5
5
6
6
3
3
* On the 2003T-B, the hose run for water outlet from
the turbocharger was changed. Outgoing coolant on the
B version is taken to the circulation pump, whereas it
was taken to the heat exchanger on the A version. This
allows the engine to come up to working temperature
faster, and also gives it a higher working temperature,
which reduces exhaust emissions.