Mazda 2007 CX-9, Service Highlights

Page: 46 / 614

MECHANICAL [MZI-3.5]
01-10–10
VARIABLE VALVE TIMING MECHANISM OUTLINE [MZI-3.5]
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•
A variable timing mechanism has been adopted which realizes optimum valve timing according to engine
operation conditions by continuously modifying the phases of the intake camshaft and crankshaft.
End Of Sie
VARIABLE VALVE TIMING MECHANISM CONSTRUCTION/OPERATION [MZI-3.5]
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Construction
•
The variable valve timing mechanism consists of the variable valve timing actuator, oil control valve (OCV),
input parts for vehicle conditions determination, and the PCM.
ENGINE SPEED
TORQUE
ENGINE WITH VARIABLE VALVE TIMING MECHANISM
HIGH SPEED ENGINE
LOW-MIDDLE SPEED
ENGINE
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OCV
VARIABLE VALVE TIMING ACTUATOR
HYDRAULIC PRESSURE
ELECTRONIC SIGNAL
INPUT SIGNAL
PCM
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