TP-5986 4/03 13Section 5 Cooling System
Section 5 Cooling System
5.1 General
The heat exchanger cooling system consists of a heat
exchanger with a coolant recovery tank, a thermostat, a
rubber impeller seawater pump, a centrifugal-type
engine circulating pump, a water-cooled exhaust
manifold, and an exhaust mixer. See Figure 5-1 for
cooling system components.
Seawater
Coolant/Antifreeze
1
2
3
4
5
6
7
8
9
10
11
12
1. Engine block
2. Exhaust manifold
3. Exhaust mixer elbow
4. Outlet flapper
5. Silencer
6. Thermostat
7. Heat exchanger
8. Engine seawater pump
9. Seawater strainer
10. Seacock
11. Intake strainer
12. Engine-driven water pump
Figure 5-1 Cooling System Components
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