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Home >> Hyundai >> 2018 >> Tucson Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Cylinder Head Assembly - 1.6L) >> CVVT & Camshaft >> Repair Procedures >> Removal

Repair Procedures: Removal

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  1. Remove the cylinder head cover.

    (Refer to Cylinder Head Assembly - "Cylinder Head Cover ")

  2. Turn the crankshaft damper pulley so that No. 1 piston is at top dead center.
    1. Turn the crankshaft damper pulley and align its groove with the timing mark on the timing chain cover (0° mark on the timing scale).
      G12608625Courtesy of HYUNDAI MOTOR AMERICA
    2. Check that the TDC timing marks on the intake and exhaust CVVT sprockets are in a straight line on the cylinder head surface as shown in the picture. If not, turn the crankshaft damper pulley by one revolution (360°).
      G12608626Courtesy of HYUNDAI MOTOR AMERICA
      NOTE:
      • Do not turn the crankshaft damper pulley counterclockwise.
    3. Mark the timing chain links corresponding to the timing marks on the CVVT sprockets with a indelible marker.
      G12608627Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the exhaust oil control valve (OCV) adaptor (A).
    G12608628Courtesy of HYUNDAI MOTOR AMERICA
  4. Remove the camshaft bearing caps (A) in the order shown in the picture.
    G12608629Courtesy of HYUNDAI MOTOR AMERICA
    Fig 1: Camshaft Bearing Caps Bolts Loosening Sequence
    G12608630Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the engine mounting support bracket.
    1. Put a jack under the oil pan.
      NOTE:
      • Place a wooden block between the jack and the oil pan to prevent damage to the oil pan.
    2. Disconnect the engine ground cable (A).
      G12608631Courtesy of HYUNDAI MOTOR AMERICA
    3. Remove the engine mounting support bracket (A).
      G12608632Courtesy of HYUNDAI MOTOR AMERICA
    4. Lift the engine slightly using the jack to obtain space for releasing the timing chain tensioner.
  6. Remove the bolt (A) from the service hole in the timing chain cover.
    G12608633Courtesy of HYUNDAI MOTOR AMERICA
  7. Lock the timing chain tensioner in the fully retracted position.
    1. Insert a pick into the service hole in the timing chain cover and lower the hole in the left side of the ratchet plate (A) on the tensioner to allow the pawl (B: located inside the tensioner behind the ratchet plate) to be lifted.
      G12608634Courtesy of HYUNDAI MOTOR AMERICA
      G12608635Courtesy of HYUNDAI MOTOR AMERICA
    2. With the pawl lifted, have a helper pull up the exhaust CVVT & camshaft (A) to allow the tensioner plunger (B) to retract.
      G12608636Courtesy of HYUNDAI MOTOR AMERICA
      G12608637Courtesy of HYUNDAI MOTOR AMERICA
    3. With the tensioner plunger in the fully retracted position, raise the hole in the left side of the ratchet plate (A) again through the service hole in the chain cover to align the ratchet plate hole with the hole in the tensioner body behind the ratchet plate, then lock the tensioner by inserting the pick through the ratchet plate and tensioner body holes.
      G12608638Courtesy of HYUNDAI MOTOR AMERICA
  8. Separate the exhaust camshaft (A) from the exhaust CVVT by removing the bolt.
    G12608639Courtesy of HYUNDAI MOTOR AMERICA
  9. Remove the exhaust CVVT (A) from the timing chain.
    G12608640Courtesy of HYUNDAI MOTOR AMERICA
  10. Remove the intake CVVT & camshaft (A).
    G12608641Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • Fasten the timing chain to the engine hanger with a cable tie or strap not to allow the timing chain to fall down when removing the intake CVVT & camshaft.
    G12608642Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the intake CVVT (A) from the intake camshaft (B).
    G12608643Courtesy of HYUNDAI MOTOR AMERICA

    information 

    • When removing the CVVT bolt, hold the hexagonal portion (B) on the camshaft with a wrench to prevent the camshaft from rotating.