D330, D333, 3304, 3306 – Cooling System


RADIATOR COOLING SYSTEM FLOW DIAGRAM
1. Radiator. 2. Coolant external bypass line (D330C and D333C); elbow with internal bypass for coolant (3304 and 3306). 3. Temperature regulator housing or elbow. 4. Cylinder head. 5. Engine oil cooler. 6. Radiator outlet line. 7. Water pump. 8. Cylinder block.


HEAT EXCHANGER COOLING SYSTEM FLOW DIAGRAM
1. Heat exchanger. 2. Coolant external bypass line (D330C and D333C); elbow with internal bypass for coolant (3304 and 3306). 3. Temperature regulator housing or elbow. 4. Fresh water cooled exhaust manifold shield. 5. Cylinder head. 6. Heat exchanger outlet pipe. 7. Cylinder block. 8. Oil cooler bonnet (flow divided to exhaust manifold shield, marine gear oil cooler, if so equipped, and cylinder block). 9. Fresh water pump. 10. Marine gear oil cooler (D330C and D333C). 11. Engine oil cooler. 12. Raw water pump to heat exchanger core line. 13. Raw water discharge overboard line. 14. Raw water pump. 15. Raw water supply line.


KEEL COOLING SYSTEM FLOW DIAGRAM
1. Expansion tank. 2. Coolant external bypass line (D330C and D333C); elbow with internal bypass for coolant (3304 and 3306). 3. Temperature regulator housing or elbow. 4. Water cooled exhaust manifold shield. 5. Cylinder head. 6. Expansion tank outlet line. 7. Cylinder block. 8. Oil cooler bonnet (flow divided to exhaust manifold shield, marine gear oil cooler, if so equipped, and cylinder block). 9. Water pump. 10. Marine gear oil cooler (D330C and D333C). 11. Engine oil cooler. 12. Keel cooling coil.

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