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Home >> Kia >> 2020 >> Optima EX Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (Lubrication System - 2.0L (Except HEV)) >> Balance Shaft & Oil Pump >> Repair Procedures >> Installation >> BSM (Balance Shaft Module)

BSM (Balance Shaft Module)

WARNING: This page is about a different variant/trim than selected.
  1. Insert a stopper pin (A) on the BSM to hold the sprocket at the reference position with the timing mark (B) aligned with the timing notch (C).
    G12922018Courtesy of KIA MOTORS AMERICA, INC.

    Information 

    New BSM has already been installed with a stopper pin at the reference position.

  2. Install the BSM (Balance Shaft Module) (A).
    G12922019Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: The timing mark of BSM sprocket should be matched with the paint-marked link of the timing chain.
    G12922020Courtesy of KIA MOTORS AMERICA, INC.
  3. Install the BSM mounting bolts.
    1. Tighten the bolts with seating torque 29.4 N.m (3.0 kgf.m, 21.7 lb-ft) and then loosen the bolts.
    2. Using the SST (Torque Angle Adapter, 09221-4A000), tighten the bolts with specified tightening torque and angle.

      Tightening torque 

      Bolts (A) (M9x181.5): 22.6 - 26.5 N.m (2.3 - 2.7 kgf.m, 16.6 - 19.5 lb.ft) + 88° - 92°

      Bolts (B) (M9x100): 22.6 - 26.5 N.m (2.3 - 2.7 kgf.m, 16.6 - 19.5 lb.ft) + 43° - 47°

      NOTE: Do not reuse the BSM bolts.
      G12922021Courtesy of KIA MOTORS AMERICA, INC.
      Fig 1: BSM Bolts Tightening Sequence
      G12922022Courtesy of KIA MOTORS AMERICA, INC.
  4. Remove the stopper pin (A) from the BSM.
    G12922023Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the stopper pin (A) from the tensioner.
    G12922024Courtesy of KIA MOTORS AMERICA, INC.
  6. Confirm the BSM timing mark.
    1. Turn the crankshaft pulley and align its groove with the timing mark "T" of the timing chain cover.
      G12922025Courtesy of KIA MOTORS AMERICA, INC.
    2. Confirm that the sprocket timing mark (A) is visually aligned with center of adjacent cast timing notch (B).
    G12922026Courtesy of KIA MOTORS AMERICA, INC.
  7. Install the other parts in the reverse order of removal.