COOLING SYSTEM CAP, COOLANT RESERVE TANK CONSTRUCTION


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• A low-pressure type cap has been adopted for the cooling system cap. It is installed on the coolant reserve tank to improve serviceability when adding engine coolant and bleeding air.

• A degassing type coolant reserve tank has been adopted, to integrate the simple airtight sub-tank and the air/water separating tank, improving the air/water separating function. The integrated and large-size degassing tank consists of a labyrinth structure with internal barriers to lengthen the distance to the outlet and reduce the flow speed to lengthen the time the engine coolant has to accumulate, improving the air/water separation function.

• An orifice has been adopted inside the coolant reserve outlet hose. The orifice minimizes the inner tube space and controls the engine coolant amount to stabilize the engine coolant pressure properly when the engine output is high.

• A coolant level switch has been adopted on the side of the coolant reserve tank. A warning light in the instrument cluster illuminates when the engine coolant is below the specified amount.

1
External view
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Cooling system cap
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Front
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Coolant reserve tank
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Radiator
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Side view
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Cap pressure
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Water pump
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Coolant level switch
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Thermostat
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Atmospheric discharge
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Sec. A-A' (labyrinth structure)
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Coolant flow
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Barrier
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Orfice