Coolant Reservoir: Description and Operation
COOLANT RECOVERY PRESSURE CONTAINERDESCRIPTION
The coolant bottle consists of a pressure chamber and an overflow chamber that are mounted in the engine compartment. The overflow hose connects the pressure chamber to the overflow chamber.
NOTE: Coolant will normally be in the pressure chamber side of the coolant bottle. The overflow chamber should normally be empty
OPERATION
The pressure chamber keeps the coolant free of trapped air, provides a volume for expansion and contraction, and provides a convenient and safe method for checking and adjusting coolant level at atmospheric pressure. It also provides some reserve coolant to cover minor leaks, evaporation or boiling losses. The overflow chamber allows coolant recovery in case of an overheat.