Electric Variable Valve Timing Actuator Removal Note
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
- Keep the timing chain pulled up during and after the work in which it has been set aside from the sprocket. If the chain falls down, it may disengage from the sprocket on the crankshaft side and deviate, leading to valve timing deviation.
- After servicing, always verify the valve timing.
- Rotate the crankshaft clockwise so that cylinder No. 1 is positioned around before top dead center (TDC) as shown in the figure.
NOTE:
- With cylinder No. 1 positioned around before top dead center (TDC), there is no large movement (rotation) of the exhaust camshaft when the timing chain is removed. Therefore, installation of the electric variable valve timing actuator to the camshaft will be easier. (If there is a large movement of the exhaust camshaft, installation of the electric variable valve timing actuator to the camshaft must be performed while loosening the chain by rotating the exhaust camshaft.)
- Mark the timing chain and each actuator so that they can be reassembled in the same condition as before removal.
- Hold the intake camshaft using a wrench on the cast hexagon and remove the electric variable valve timing actuator installation bolt.
- Using a screwdriver wrapped in a clean cloth, lightly press the electric variable valve timing actuator to the front and separate the intake camshaft and the actuator.
- Remove the timing chain from the exhaust and intake camshaft sprockets and set is aside, and remove the electric variable valve timing actuator.
- Return the timing chain to the exhaust camshaft sprocket, and pull the timing chain up and suspend it using a rope as shown in the figure.