CVVT Assembly

Inspect CVVT assembly.
1. Check that the CVVT assembly will not turn.
2. Apply vinyl tape to the retard hole except the one indicated by the arrow in the illustration.
  [Intake CVVT]
  
  Fig 1: Locating Retard (A) And Advance (B) Holes on Intake CVVT
  Courtesy of HYUNDAI MOTOR CO.
  
  [Exhaust CVVT]
  
  Fig 2: Locating Retard (A) And Advance (B) Holes on Exhaust CVVT
  Courtesy of HYUNDAI MOTOR CO.
3. Wind tape around the tip of the air gun and apply air of approx. 150kpa(1.5kgf/cm² , 21psi) to the port of the camshaft.
  (Perform this in order to release the lock pin for the maximum delay angle locking.)
  
  NOTE: When the oil splashes, wipe it off with a shop rag.
4. Under the condition of (3), turn the CVVT assembly to the advance angle side (the arrow marked direction in the illustration) with your hand.
  Depending on the air pressure, the CVVT assembly will turn to the advance side without applying force by hand. Also, under the condition that the pressure can be hardly applied because of the air leakage from the port, there may be the case that the lock pin could be hardly released.
  
  Fig 3: Turning CVVT Assembly To Advance Angle Side
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 22.5°
6. Turn the CVVT assembly with your hand and lock it at the maximum delay angle position (counter clockwise).