TM 9-2350-261-20-2 C O O L A N T F L O W D I A G R A M Engine coolant maintains normal operatingtemperatures. Coolant flow is as follows:Coolant is drawn from the radiator by the cool-ant pump. It is pumped through the oil cooler,and the engine block, up to the cylinder heads,and into the thermostat housing. The coolantthen passes through a deaerator elbow and backto the radiator. The deaerator elbow swirls thecoolant to remove air. This air is vented back tothe auxiliary tank.8-2The auxiliary tank provides for coolant overflowfrom the radiator. The tank also vents air outthrough its cap.
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