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2016 – MX-5 – Engine

COOLING SYSTEM [SKYACTIV-G 2.0]

Outline

• The radiator has been scaled down and installed upright to achieve a short overhang.

• The following have been adopted to improve cooling efficiency.

• Air seal cowl to guide efficient cool air flow to the radiator

• Flaps to increase cooling efficiency from medium to high speed range

• Engine coolant passage in cylinder block and cylinder head has been changed

• Improved shape of engine coolant passage to reduce engine coolant passage resistance

• Shroud impeller is adopted to water pump impeller to improve pump efficiency

• Piping layout of hoses has been optimized to achieve weight reduction.

Structural View

Hose Routing Diagram

Flow Chart

Structure

• Consists of the following parts:

Radiator	(See RADIATOR [SKYACTIV-G 2.0].)
Cooling system cap	(See COOLING SYSTEM CAP [SKYACTIV-G 2.0].)
Thermostat	(See THERMOSTAT [SKYACTIV-G 2.0].)
Water pump	(See WATER PUMP [SKYACTIV-G 2.0].)
Cooling fan component	(See COOLING FAN COMPONENT [SKYACTIV-G 2.0].)
Cooling fan relay	(See COOLING FAN RELAY [SKYACTIV-G 2.0].)
Fan control module	(See FAN CONTROL MODULE [SKYACTIV-G 2.0].)

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