Yanmar 4BY - Page 29

GENERAL SERVICE INFORMATION
3-8
BY Service Manual
Engine Piping Diagrams
Cooling Flow
Figure 3-6
Note: Typical 4BY engine shown. 6BY is similar.
1 – Seawater Supply
2 – Seawater Pump
3 – Hydraulic Oil Cooler
4 – Charge Air Cooler
5 – Engine Heat Exchanger
6 – Exhaust Elbow
7 – Exhaust / Seawater Exit
8 – Engine Coolant Pump
9 – Thermostat
10 – Engine Oil Cooler
11 – Engine Coolant Passages
12 – Coolant Recovery Tank
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