Mazda CX-5 Service & Repair Manual: Hydraulic Variable Valve Timing Actuator Inspection
WARNING:
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A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.
CAUTION:
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Do not disassemble the hydraulic variable valve timing actuator because it is a precision unit.
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Remove the ignition coil/ion sensors..
4. Remove the cylinder head cover..
5. Verify that the notch of the rotor and projection of the cover on the hydraulic variable valve timing actuator are aligned and fitted.
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If the notch of the rotor and projection of the cover are not aligned, rotate the crankshaft in the direction the engine rotates two turns and verify that they are aligned.
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If the notch of the rotor and projection of the cover are still not aligned, replace the hydraulic variable valve timing actuator..
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If, when turning the crankshaft, there is a slapping noise from the hydraulic variable valve timing actuator each time before the cam reaches its maximum lift, it means that the actuator is not secured. Replace the hydraulic variable valve timing actuator..
6. Install in the reverse order of removal.
Fresh Air Duct
Purpose, Function
Conducts fresh air from outside the engine compartment.
Increases air density by taking fresh air, which is cooler than the engine
compartment, to enhance the charg ...
Hydraulic Variable Valve Timing Actuator
Purpose, Function
The hydraulic variable valve timing actuator operates according to the hydraulic
pressure and changes the phases of the exhaust camshaft. As a result, the open/close
per ...
Other materials:
Catalytic Converter
Purpose, Function
Purifies contaminants in the exhaust gas by utilizing the chemical reactions
of the three-way catalytic converter.
A WU-TWC and a TWC have been adopted.
WU-TWC
The three-way catalyst is integrated with the exhaust manifold.
Because the c ...
Vehicle Loading
This section will guide you in the proper loading of your vehicle and/or trailer,
to keep your loaded vehicle weight within its design rating capability, with or
without a trailer.
Properly loading your vehicle will provide maximum return of vehicle design performance.
Before loading your vehi ...
Column Cover Removal/Installation
1. Pull down the steering wheel.
2. Press the shaded area shown in the figure using your thumb, and lift the upper
column cover in the direction of arrow (1).
3. Pull the upper column cover in the direction of the arrow (2) and remove it
while detaching pins A, tabs B and guides C.
4. ...
