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Home >> Hyundai >> 2021 >> Veloster N Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Timing System >> Timing Chain Cover >> Repair Procedures >> Installation

Repair Procedures: Installation

  1. Install the timing chain cover (A).
    1. Using a gasket scraper, remove all the old packing material from the gasket surfaces.
    2. The sealant locations on chain cover and on counter parts (cylinder head, cylinder block, and ladder frame) must be free of engine oil and etc.
    3. Before assembling the timing chain cover, liquid sealant Loctite 5900H or equivalent should be applied on the gap between camshaft front bearing cap, cylinder head and cylinder block. The part must be assembled within 5 minutes after sealant was applied.

      Bead width:  2.0 - 3.0 mm (0.08 - 0.12 in.)

      G15471485Courtesy of HYUNDAI MOTOR AMERICA
    4. After applying liquid sealant Loctite 5900H or equivalent on the timing chain cover.

      The part must be assembled within 5 minutes after sealant was applied. Continuous bead of sealant should be applied to prevent any path of oil leakage.

      Bead width:  2.0 - 3.0 mm (0.08 - 0.12 in.)

      G15471486Courtesy of HYUNDAI MOTOR AMERICA
    5. The dowel pins on the cylinder block and holes on the timing chain cover should be used as a reference in order to assemble the timing chain cover to be in exact position.

      Tightening torque 

      M6 X 25 bolt:

      7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb - ft) M8 X 28 bolt:

      18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb - ft)

      G15471487Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • The engine starting or pressure tests should not be performed within 30 minutes after the timing chain cover was assembled.
  2. Replace the front oil seal if necessary. (Refer to Timing System - "FRONT OIL SEAL ")
  3. Remove it by breaking the center of E-CVVT motor plug (A).
    G15471488Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • Remove after 30 minutes of switching "OFF" the ignition to drain out the oil inside the E-CVVT motor plug.
    • Do not tilt the front of engine (timing chain cover side) downward as residual oil may flow out during E-CVVT motor plug removal.
    • If oil flows out during E-CVVT motor plug removal, wipe off immediately and block the motor shaft inlet with a clean towel.
  4. Clean the E-CVVT motor plug mounting surface (A) with oil cleaner.
    G15471489Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • If the surface is not cleaned, E-CVVT motor plug may be separated due to diminished separation force from residual oil.
    • When spraying oil cleaner, block around the motor shaft inlet and rotor gap with a clean towel to prevent inflow of oil from flowing into the rotor gap.
  5. When reusing the E-CVVT cover, inspect the below items.
    1. If there is sign of leakage from inside the E-CVVT cover, replace it with a new one.
    2. Check for worn connector brush.

      Specification:  Over 5 mm (0.1969 in.)

      G15471490Courtesy of HYUNDAI MOTOR AMERICA

      If measurement is below specification, replace the E-CVVT cover with a new one.

    3. Check for damaged oil seal (A) and replace any damaged E-CVVT cover with a new one.
      G15471491Courtesy of HYUNDAI MOTOR AMERICA
    4. After inspecting E-CVVT, if no problem is found, replace the o - ring (A) with a new one.
      G15471492Courtesy of HYUNDAI MOTOR AMERICA
  6. Install the E-CVVT cover.
    1. Apply engine oil on oil seal lip (A).
      G15471493Courtesy of HYUNDAI MOTOR AMERICA
      NOTE:
      • When applying oil, keep the connector brush (A) clean from foreign materials.
      G15471494Courtesy of HYUNDAI MOTOR AMERICA
    2. Insert SST (09243 - C2000) into the E-CVVT motor shaft.
      G15471495Courtesy of HYUNDAI MOTOR AMERICA
      NOTE:
      • Correctly mount SST onto the motor shaft.
    3. Slowly push the E-CVVT cover (A) until it is flush with the timing chain cover surface.
      G15471496Courtesy of HYUNDAI MOTOR AMERICA
      NOTE:
      • Installing the E-CVVT cover without SST may cause oil leakage inside the E-CVVT motor due to damaged or separated E-CVVT oil seal.
    4. Pre - tighten the bolts in the below sequence, and then remove the SST (09243 - C2000).

      Tightening torque: 

      1.0 - 2.0 N.m (0.1 - 0.2 kgf.m, 0.7 - 1.4 lb - ft)

      G15471497Courtesy of HYUNDAI MOTOR AMERICA
    5. Tighten the bolts to the specified torque in the sequence below.

      Tightening torque: 

      9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb - ft)

      Fig 1: E-CVVT Motor Bolts Tightening Sequence
      G15471498Courtesy of HYUNDAI MOTOR AMERICA
  7. Install the E-CVVT plug.
    1. By using SST (09243 - C2000), insert the plug (A) into the E-CVVT cover hole.
      G15471499Courtesy of HYUNDAI MOTOR AMERICA
      NOTE:
      • Do not reuse a E-CVVT motor plug. (2) Mount the stopper of SST so that it sits at the end of E-CVVT motor shaft.
    G15471500Courtesy of HYUNDAI MOTOR AMERICA
  8. Inspect the pressed depth of E-CVVT plug.
    1. By using a steel ruler, measure the distance from E-CVVT cover center boss to the end of motor shaft (1).
    2. By using a steel ruler, measure the distance from E-CVVT cover center boss to the end of E-CVVT plug (2).
      G15471501Courtesy of HYUNDAI MOTOR AMERICA
    3. Calculate the pressed depth (3) of motor plug.

      If out of specification, reinstall after replacing the E-CVVT plug with a new one.

      Pressed depth:  (3) = (2) - (1)

      Specification:  1.9 - 2.1 mm (0.0748 - 0.0827 in.)

  9. Insert the E-CVVT cover plug so that the protrusion (A) reach to E-CVVT cover groove correctly.
    G15471502Courtesy of HYUNDAI MOTOR AMERICA
    G15471503Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • Check how much protrude after installing the E-CVVT plug.
    G15471504Courtesy of HYUNDAI MOTOR AMERICA
    • Be careful that the plug is not inserted inside E-CVVT cover beyond the regulated range.
  10. Install the other parts in the reverse order of removal.
    NOTE:
    • Refill engine with engine oil.
    • Refill a transaxle with fluid.
    • Refill a radiator and a reservoir tank with engine coolant.
    • Clean battery posts and cable terminals and assemble.
    • Inspect for fuel leakage.
      • After assemble the fuel line, turn on the ignition switch (do not operate the starter) so that the fuel pump runs for approximately two seconds and fuel line pressurizes.
      • Repeat this operation two or three times, then check for fuel leakage at any point in the fuel line.
    • Refill radiator and reservoir tank with engine coolant.
    • Bleed air from the cooling system.
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