Mazda 6 Training Manual page 38

Hydraulic Pressure Flow Diagram
.
1 Oil pan
2 Oil pump
3 Oil pipe
4 Oil filter
5 Oil control valve (OCV)
Component and function
Variable valve timing actuator
Oil control valve (OCV)
CKP sensor
CMP sensor
PCM
B–30
VALVE MECHANISM
• Continuously modifies the phases of the intake camshaft and crankshaft at the forward
end of the intake camshaft using hydraulic pressure from the oil control valve (OCV).
• Operated by current (duty signal) from the PCM. Switches the hydraulic oil passages
to the variable valve timing actuator.
• Inputs engine revolution signal to the PCM.
• Inputs cylinder identification signal to the PCM.
• Controls the oil control valve (OCV) so that optimum valve timing is obtained according
to engine operation conditions.
6 Oil control valve (OCV) adapter
7 Camshaft
8 Variable valve timing actuator
9 Cylinder block
AME2211N016