Mazda 2009 RX-8, Service Highlights

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COOLING SYSTEM [13B-MSP]
01-12–2
WATER PUMP CONSTRUCTION/OPERATION [13B-MSP]
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Construction
!
The water pump consists of a steel water pump pulley, a water pump body made of aluminum alloy, and a O-
ring.
!
The water pump with the impeller built into the front cover has been adopted for size reduction. A plastic
impeller has been adopted for reduced water pump drag.
Operation
!
The water pump is driven by the drive belt.
End Of Sie
NG: COOLING FAN
COOLING FAN COMPONENT CONSTRUCTION/OPERATION [13B-MSP]
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Construction
!
The cooling fan component consists of the radiator cowling, cooling fans, and cooling fan motors.
!
Electric cooling fans No.1 and No.2, which operate according to the fan control signal from the PCM, have been
adopted. Due to this, engine noise has been reduced and rapid engine warming-up is possible.
!
The radiator cowling and cooling fans are made of plastic for weight reduction.
WATER PUMP PULLEY
O-RING
IMPELLER WATER PUMP BODY
SECTIONAL VIEW
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COOLING
FAN NO.2
RADIATOR COWLING
COOLING FAN
MOTOR NO.2
COOLING FAN COMPONENT
COOLING
FAN NO.1
COOLING FAN
MOTOR NO.1
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