CVVT (Continuous Variable Valve Timing) Assembly

Inspect the CVVT (Continuous Variable Valve Timing) assembly.
1. Check that the CVVT (Continuous Variable Valve Timing) assembly will not turn.
2. Apply vinyl tape to all the parts except the one indicated by the arrow in the illustration.
  
  Fig 1: Identifying Parts Indicated By Arrow
  Courtesy of KIA MOTORS AMERICA, INC.
3. Wrap tape around the tip of the air gun and apply air of approx. 98kpa (1 kg/cm² , 14psi) to the port of the camshaft.
  Perform this order to release the lock pin for the maximum delay angle locking.)
  
  NOTE: Wrap around it with a shop rag and the likes, because the oil splashes.
4. Under the condition of 3), turn the CVVT assembly to the advance angle side with your hand.
  - Depending on the air pressure, the CVVT assembly will turn to the advance side.
  - If air is leaking from the port and air pressure cannot be maintained, the locking pin will not release.
    
    Fig 2: Identifying CVVT Assembly Advance And Retard Angle
    Courtesy of KIA MOTORS AMERICA, INC.
5. Except the position where the lock pin meets at the maximum delay angle, let the CVVT assembly turn back and forth and check the movable range and that there is no disturbance.
  Standard: Movable smoothly in the range about 20°
6. Turn the CVVT assembly with your hand and lock it at the maximum delay angle position.