Water Pump; Construction; Operation; Cooling Fan, Cooling Fan Motor, Radiator Cowling Construction/Operation - Mazda RX-8 2004 Service Highlights

Mazda rx-8 2004

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WATER PUMP CONSTRUCTION/OPERATION

• The water pump is composed of a steel water pump pulley, a water pump body made of aluminum alloy, and

the gasket. The spiral casing is built into the front cover for weight reduction.

WATER PUMP PULLEY

• The water pump is driven by the drive pulley.

Construction

• Plastic cooling fans and radiator cowling have

been adopted for weight reduction.

• Both cooling fans and cooling fan motors are

attached to the radiator cowling.

• An electric motor type cooling fans operated by a

fan control signal from the PCM has been

• Cooling fans No.1 and No.2 operate simultaneously according to the engine coolant temperature and whether

the A/C is on or off. Two- stage control has been adopted to the cooling fan with high and low speed rotation

allowing noise reduction and power savings. (See 01–40–37 ELECTRICAL FAN CONTROL OPERATION.)

COOLING SYSTEM

WATER PUMP BODY

RADIATOR COWLING

COOLING FAN NO.2

CHU011201008S07

SECTIONAL VIEW

CHU011201008S08

COOLING FAN NO.1

Chapters

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