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Home >> Kia >> 2023 >> Niro EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Timing System (HEV)) >> Timing Chain >> Installation

Timing Chain: Installation

WARNING: This page is about a different car, the 2024 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • When working on high voltage system, the work should be performed by technicians who have completed the relevant training. A lack of understanding of high voltage system can lead to serious accidents due to electric shock or short circuit.
  • When working on high voltage system or related components, be sure to be familiar with and comply with the "HIGH VOLTAGE SYSTEM GENERAL SAFETY INFORMATION AND CAUTION ." Failure to comply can lead to serious accidents due to electric shock or short circuit.
  • When working on high voltage system, make sure to check the Personal Protective Equipment (PPE) and high voltage shut-off procedure.
  1. Install the crankshaft sprocket (A).
    G15766488Courtesy of KIA MOTORS AMERICA, INC.
  2. Install the oil pump chain.

    (Refer to Lubrication System - "OIL PUMP ")

  3. Make sure the mounting surfaces of the crankshaft key and the lower crankcase are in a straight line. At this time, the piston of cylinder 1 is positioned at compression top dead center.
    G15766489Courtesy of KIA MOTORS AMERICA, INC.
  4. Rotate so that the TDC marks on the intake CVVT sprocket and exhaust CVVT sprocket are aligned with the top surface of the cylinder head so that cylinder 1 is at compression top dead center.
    G15766490Courtesy of KIA MOTORS AMERICA, INC.
  5. Install the timing chain guide, and then tighten the bolt.

    Tightening torque: 

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

    G15766491Courtesy of KIA MOTORS AMERICA, INC.
  6. Install the timing chain (B) and the timing chain tensioner arm (A).

    Tightening torque: 

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

    G15766492Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: When installing the timing chain, align the timing marks (A) on each sprocket with the timing marks (B) on the timing chain.

    [Intake CVVT] 

    G15766493Courtesy of KIA MOTORS AMERICA, INC.

    [Exhaust CVVT] 

    G15766494Courtesy of KIA MOTORS AMERICA, INC.

    [Crankshaft] 

    G15766495Courtesy of KIA MOTORS AMERICA, INC.
  7. Install the timing chain tensioner (A) and remove the retaining pin (B).

    Tightening torque: 

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

    G15766496Courtesy of KIA MOTORS AMERICA, INC.
  8. Install the timing chain cam to cam guide, and then tighten the bolts.

    Tightening torque: 

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

    G15766497Courtesy of KIA MOTORS AMERICA, INC.
  9. Turn the crankshaft clockwise 2 turns and check that the TDC marks on the front of the intake and exhaust CVVT sprockets are facing each other.
    G15766498Courtesy of KIA MOTORS AMERICA, INC.

    Information 

    Use the crankshaft damper pulley bolts to rotate the crankshaft 2 turns clockwise.

  10. Install in reverse order of removal.
  11. Fill the engine oil.

    (Refer to Lubrication System - "ENGINE OIL ")

  12. Start engine and check for any leaks.