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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Cylinder Head Assembly - 1.6L (Except HEV)) >> CVVD Assembly >> Repair Procedures >> Removal

Repair Procedures: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the battery negative terminal.
  2. Remove the cylinder head cover.

    (Refer to Cylinder Head Assembly - "CYLINDER HEAD COVER ")

  3. 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
      G14524235Courtesy of HYUNDAI MOTOR AMERICA
    2. Check that the timing mark of the intake CVVT and exhaust CVVT is above.

      If not, turn the crankshaft damper pulley by one revolution (360°).

    G14524236Courtesy of HYUNDAI MOTOR AMERICA
    G14524237Courtesy of HYUNDAI MOTOR AMERICA
  4. Remove the Intake variable force solenoid (VFS) valve (A).
    G14524238Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the cam to cam guide (A).
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  6. Remove the front bearing cap (A) and intake camshaft bearing cap (B).
    G14524240Courtesy of HYUNDAI MOTOR AMERICA
  7. Remove the service hole bolt (A).
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  8. Remove the engine mounting support bracket.

    (Refer to Engine and Transaxle Assembly - "ENGINE MOUNTING ")

  9. Lift the engine using the jack to obtain space.
  10. Release the lock by putting down ratchet plate (B) of timing chain tensioner with using back of tiny awl (A).
    G14524242Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the intake oil control valve (OCV) & center bolt (A).
    G14524243Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • To prevent impurities from entering intake oil control valve (OCV) & center bolt, wear rubber gloves.
    • Intake oil control valve (OCV) and center bolt, hold the hexagonal portion on the camshaft with a wrench to prevent the camshaft from rotating.
    G14524244Courtesy of HYUNDAI MOTOR AMERICA
  12. Remove the CVVD assembly.
    NOTE:
    • After removing the CVVD unit, make sure that the parts such as lifter, cam, etc are not separated.
    • Ensure that the CVVD components are not damaged.

    When Using the CVVD fixture 

    1. Install the CVVD fixture (A) over the CVVD assembly.
      G14524245Courtesy of HYUNDAI MOTOR AMERICA
      G14524246Courtesy of HYUNDAI MOTOR AMERICA
    2. Remove the CVVD assembly.
    G14524247Courtesy of HYUNDAI MOTOR AMERICA

    When not using the CVVD fixture 

    1. Remove the CVVD assembly.
    G14524248Courtesy of HYUNDAI MOTOR AMERICA
  13. Remove the Intake CVVT (A).
G14524249Courtesy of HYUNDAI MOTOR AMERICA