Mazda CX-5 Service & Repair Manual: Electric Variable Valve Timing Actuator Inspection

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. Disconnect the negative battery cable..

2. Remove the plug hole plate..

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

4. 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.

5. Install in the reverse order of removal.