21
N73B60 Engine - Diagnosis
Cooling System
Coolant Circuit - 14.94 Liter (15.8 Quart) Capacity
1. Water pump
2. Thermostat housing with MAP thermostat
3. Coolant temperature sensor
4. Radiator
5. Partition wall (low temperature area)
6. Radiator (high temperature area)
7. Return flow (cool)
8. Radiator vent line
Cooling System (Circuit Flow)
9. Coolant reservoir
10. Water cooled alternator
11. Thermostat for transmission
oil heat exchanger
12. Oil/water heater exchanger
for automatic transmission
13. Transmission oil line
connections
14. Heater supply hose (hot)
15. Water valves / electric pump
16. Heater inlet hoses
17. Holes (cylinder jacket venting)
18. Cylinder head vent hose
19. Cylinder head, bank 1-6
20. Heater core(s)
21. Cylinder head, bank 7-12
kt-9704
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