Section 6 Cooling System; Direct Water Cooled - Kohler 4EOZ Service

6.1 Direct Water Cooled

In a direct seawater cooling system, the impeller pump
circulates the seawater around the cylinder and through
the cylinder head. A thermostat controls the cooling water
circuit temperature. Consult Figure 6-1 and the engine
operation manual for the cooling water circuit diagrams.
6
1. Intake strainer
2. Seacock
3. Seawater strainer
4. Engine-driven seawater pump
5. Oil exchanger
6. Alternator water cooler
Figure 6-1 Direct Water-Cooled Cooling System (3.5EFOZ and 4EOZ Models)
TP-6137 5/03
7
3
4
2
1

Section 6 Cooling System

Saltwater damage. Saltwater quickly deteriorates metals.
Wipe up saltwater on and around the generator set and
remove salt deposits from metal surfaces.
8
9
10
5
7. Zinc plug
8. Exhaust manifold elbow
9. Exhaust hose
10. Silencer (customer supplied)
11. Outlet flapper (exhaust/water discharge)
NOTICE
11
TP-6134-
Section 6 Cooling System 31