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ENGINE AR-CORE 2389539 - Caterpillar

2389539 ENGINE AR-CORE Caterpillar parts ENGINE
Alternative (cross code) number:
Caterpillar 2389539 ENGINE AR-CORE

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Introduction (Cooling System)
The cooling system has the following components:
Water pump
Cylinder block
Oil cooler
Cylinder head
Water temperature regulator (thermostat)Coolant Flow
Illustration 1 g01206083
Coolant flow
(1) Radiator
(2) Water pump
(3) Cylinder block
(4) Engine oil cooler
(5) Cylinder head
(6) Water temperature regulator (thermostat) and housing
(7) Bypass for the water temperature regulator (thermostat) The coolant flows from the bottom of the radiator (1) to the centrifugal water pump (2). The water pump (2) is installed on the front of the timing case. The water pump is driven by a gear. The gear of the fuel injection pump drives the water pump gear. The water pump forces the coolant through a passage in the timing case to the front of the cylinder block (3). The coolant enters a passage in the left side of the cylinder block (3). Some coolant enters the cylinder block. Some coolant passes over the element of the oil cooler (4). The coolant then enters the block (3). Coolant flows around the outside of the cylinders then flows from the cylinder block into the cylinder head (5).The coolant flows forward through the cylinder head (5). The coolant then flows into the housing of the water temperature regulator (6). If the water temperature regulator (6) is closed, the coolant goes directly through a bypass (7) to the inlet side of the water pump. If the water temperature regulator is open, and the bypass is closed then the coolant flows to the top of the radiator (1).

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