Mazda 3 Service Manual: Hydraulic Variable Valve Timing Actuator Inspection [Skyactiv G 2.0]

Mazda 3 Service Manual / Engine / General / Hydraulic Variable Valve Timing Actuator Inspection [Skyactiv G 2.0]

WARNING:

A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.

CAUTION:

Do not disassemble the hydraulic variable valve timing actuator because it is a precision unit.

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Remove the plug hole plate..

4. Remove the ignition coil/ion sensors..

5. Remove the cylinder head cover..

6. Verify that the notch of the rotor and projection of the cover on the hydraulic variable valve timing actuator are aligned and fitted.

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.

If the notch of the rotor and projection of the cover are still not aligned, replace the hydraulic variable valve timing actuator..

If, when turning the crankshaft, there is a hitting 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..

7. Install in the reverse order of removal.

Variable Valve Timing Actuator Removal/Installation [Mzr 2.3 Disi Turbo]

WARNING: Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are danger ...

Belts, Hoses, Pulleys

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Other materials:

Drive Selection
Drive selection is a system to switch the vehicle's drive mode. When the sport mode is selected, vehicle's response against accelerator operation is enhanced. This provides additional quick acceleration which may be needed to safely make maneuvers such as lane changes, merging onto freeways ...

Variable Valve Timing Actuator Removal/Installation [Mzr 2.3 Disi Turbo]
WARNING: Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin ...

Timing Chain Removal/Installation [Skyactiv G 2.0]
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. CAUTION: If the camshaft is rotated with the timing chain removed and the piston at the top dead center position, the valve may contact the piston and the engine ...