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14-25
(2) Inspection of vent valve
• Check the water level of the reservoir tank in advance.
• Run the engine at high rpm. When the engine coolant overflows
to the reservoir tank to some extent, stop the engine.
• Leave the engine in this condition for a while. When the engine
coolant temperature becomes the atmospheric temperature,
check that the water level in the reservoir tank returns to the wa-
ter level before the engine start.
• If the water level does not lower, the vent valve is defective. Re-
place the pressure cap.
CAUTION
• Do not remove the pressure cap before the engine coolant
temperature drops to the atmospheric temperature. Other-
wise, vacuum in the radiator is lost and the engine coolant
cannot return to the reservoir tank.
Installation procedure
Installation: Hose
• The insertion depth of each hose is as shown in the illustration.
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