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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)) >> CVVT And Camshaft >> 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
      G14524163Courtesy of HYUNDAI MOTOR AMERICA
    2. Check the timing chain, be sure that the timing mark (A) of each sprocket is matched with the timing mark (B) (color link) of the timing chain.

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

    [Intake CVVT] 

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    [Exhaust CVVT] 

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  4. Remove the intake and exhaust variable force solenoid (VFS) valves (A).
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  5. Remove the cam to cam guide (A).
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  6. Remove the fuel pump bracket (A).
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  7. Remove the camshaft front bearing cap (A) and camshaft bearing caps (B).
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  8. Loosen the service hole bolt (A).
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  9. Install the jack to the edge of oil pan
  10. Lift the engine using the jack to obtain space.
  11. Release the lock by putting down ratchet plate (B) of timing chain tensioner with using back of tiny awl (A).
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  12. Remove the intake oil control valve (OCV) & center bolt (A).
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    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.
    G14524173Courtesy of HYUNDAI MOTOR AMERICA
  13. Remove the exhaust oil control valve (OCV) and center bolt (A).
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    NOTE:
    • To prevent impurities from entering exhaust oil control valve (OCV) & center bolt, wear rubber gloves.
    • When removing the exhaust oil control valve (OCV) and center bolt, hold the hexagonal portion on the camshaft with a wrench to prevent the camshaft from rotating.
    G14524175Courtesy of HYUNDAI MOTOR AMERICA
  14. 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.
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    2. Remove the CVVD assembly.
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    When not using the CVVD fixture

    1. Remove the CVVD assembly.
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  15. Remove the Intake CVVT (A).
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  16. Remove the exhaust camshaft (A).
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  17. Remove the exhaust CVVT (A).
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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 and exhaust CVVT & camshaft.
G14524183Courtesy of HYUNDAI MOTOR AMERICA