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 operating
temperatures. 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 coolant
then passes through a deaerator elbow and back
to the radiator. The deaerator elbow swirls the
coolant to remove air. This air is vented back to
the auxiliary tank.
8-2
The auxiliary tank provides for coolant overflow
from the radiator. The tank also vents air out
through its cap.