CVVT Assembly

WARNING: This page is about a different variant/trim than selected.

Inspect the CVVT for smooth rotation.
1. Clamp the camshaft using a vise. Be careful not to damage the cam lobes and journals in the vise.
2. Check that the CVVT is locked by turning it clockwise or counterclockwise. It must not rotate.
3. Exhaust CVVT: Seal one of the two retard holes in the camshaft journal with tape.
  [Exhaust]
  
  Fig 1: Locating Retard Holes In Camshaft Journal With Tape
  Courtesy of HYUNDAI MOTOR AMERICA
4. Exhaust CVVT: Apply approx. 150 kPa (1.5 kgf/cm² , 21 psi) of compressed air into the unsealed retard hole to release the lock.
  Information
  
  Cover the oil paths with a piece of cloth when applying compressed air to prevent oil from spraying.
5. Exhaust CVVT: With compressed air applied, rotate the CVVT into the retard direction (clockwise) and check that the CVVT turns smoothly.
  CVVT phasing range
  
  Exhaust: 22.5° ± 1° (from the most advanced position to the most retarded position)
  
  Fig 2: Rotating CVVT Into Advance/Retard Direction
  Courtesy of HYUNDAI MOTOR AMERICA
6. Exhaust CVVT: Rotate the CVVT into the most advanced position (counterclockwise) and then check that the CVVT is locked.