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Isuzu 20LE - General Description

Isuzu 20LE
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6B-2 ENGINE COOLING
General Description
Legend
1 Water Pump
2 Thermostat
3 Radiator
4 Reserve Tank
5 Coolant Distributor
6 Cylinder Block and Head
7 Throttle Body
8 Heater
The Cooling System is a pressurized type, where the water
pump, which is cambelt driven, forces the circulation of
the coolant through the cylinder block and head. The
thermostat regulates the flow of coolant between the
radiator and the bypass circuit. The heater is part of the
bypass circuit. The throttle body pre-heat is a separate
circuit which is not regulated by the thermostat. An oil
cooler may be fitted as part of this circuit.

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