Electric Variable Valve Timing Actuator Installation Note

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Remove the rope suspending the timing chain on the intake side.
Remove the timing chain from the exhaust and intake camshaft sprockets and set it aside to the rear, then insert the electric variable valve timing actuator between the engine front cover and the cylinder head.

Fig 1: Removing Electric Variable Valve Timing Actuator
Courtesy of MAZDA MOTORS CORP.
Return the timing chain to the exhaust camshaft sprocket.
While aligning the mark on the timing chain placed during removal with the one on the electric variable valve timing actuator, engage the chain with the sprocket.

Fig 2: Aligning Mark On Timing Chain
Courtesy of MAZDA MOTORS CORP.
Align the knock pin on the end of the intake camshaft with the notch on the actuator side, then assemble the actuator.

Fig 3: Aligning Knock Pin On End Of Intake Camshaft With Notch
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Adjust the knock pin with the notch while adjusting the knock pin position by rotating the camshaft.
Hold the intake camshaft using a wrench on the cast hexagon, and tighten the electric variable valve timing actuator installation bolt.

Fig 4: Holding Intake Camshaft Using Wrench On Cast Hexagon
Courtesy of MAZDA MOTORS CORP.

Tightening torque

102-114 N.m {10.5-11.6 kgf.m, 76-84 ft.lbf}