Mazda 3 Service Manual: Electric 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 electric 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 coolant reserve tank with the hose still connected and set it out of the way..

5. Remove the electric variable valve timing motor/driver..

6. Rotate the eccentric shaft of the electric variable valve timing actuator by hand and verify that it rotates smoothly.

• If it does not rotate smoothly, replace the electric variable valve timing actuator..

NOTE:

• Hook a finger onto the joint groove of the eccentric shaft to rotate the shaft easily.

• The eccentric shaft stops rotating at the maximum retard position when it is rotated counterclockwise as viewed from the front, and at the maximum advance position when rotated clockwise.

• The eccentric shaft rotates 15.8 turns from the maximum retard position to the maximum advance position.

7. Install in the reverse order of removal.