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Home >> Kia >> 2019 >> Optima LX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 260 (Timing System (PHEV)) >> Timing Chain Cover >> Repair Procedures >> Installation

Repair Procedures: Installation

WARNING: This page is about a different variant/trim than selected.
  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 the chain cover and the counter parts (cam carrier, cylinder head, cylinder block, and lower crankcase) must be free of harmful foreign materials, oil, dust and moisture. Spray cleaner on the surface and wipe with a clean duster.
    3. Before assembling the timing chain cover, liquid sealant should be applied on the gap between cam carrier, cylinder head and cylinder block.

      Bead width:  3.0 - 5.0 mm (0.11 - 0.20 in.)

      Sealant:  Threebond 1217H or equivalent

      G13155369Courtesy of KIA MOTORS AMERICA, INC.
    4. After applying liquid sealant on the timing chain cover, assemble the cover within 5 minutes of applying sealant. Continuous bead of sealant should be applied to prevent any path from oil leakage.

      Bead width  :

      Whole section: 2.5 - 3.5 mm (0.10 - 0.14 in.)

      Section A: 4.5 - 5.5 mm (0.18 - 0.22 in.)

      Section B: 8.0 - 9.0 mm (0.32 - 0.35 in.)

      Sealant:  Threebond 1217H or equivalent

      G13155370Courtesy of KIA MOTORS AMERICA, INC.
    5. Install the timing chain cover. The dowel pins on the cylinder block and holes on the timing chain cover should be used as a reference for assembling the timing chain cover to the exact position.

      Tightening torque 

      Bolts (A, B):

      18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb.ft)

      Bolt (C):

      19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb.ft)

      Bolts (D, E):

      39.2 - 49.0 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.2 lb.ft)

      Bolt (F):

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

      G13155371Courtesy of KIA MOTORS AMERICA, INC.
      NOTE:
      • Always used a new seal bolt (C, F).
      • It is not recommended to start the engine or perform pressure test within 30 minutes of assembling the timing chain cover.
  2. Replace the front oil seal if necessary.

    (Refer to Timing System - "FRONT OIL SEAL ")

  3. Install the remaining parts in the reverse order of removal.
  4. Connect the high voltage circuit.

    (Refer to Engine Mechanical System - "HIGH VOLTAGE SHUT-OFF PROCEDURES ")

  5. Add all the necessary fluids and check for leaks. Connect KDS. Check for codes, note, and clear. Recheck.
    NOTE:
    • Refill engine with engine oil.
    • Clean battery posts and cable terminals and assemble (12 Volt only).
    • Inspect for fuel leakage.
      • After assembling the fuel line, switch on the ignition (without operating the starter) so that the fuel pump runs for approximately two seconds and fuel line pressurizes.
      • Repeat this operation two to three times, then check for fuel leakage at any point in the fuel line.