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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 72 (Lubrication System (HEV)) >> Balance Shaft & Oil Pump >> Repair Procedures >> Removal >> BSM (Balance Shaft Module)

BSM (Balance Shaft Module)

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  1. Remove the under cover.
  2. Remove the RH front wheel.
  3. Drain the engine oil.
  4. Remove one side bolt (A) and two lower bolts (B) on the A/C compressor.
    Fig 1: A/C Compressor Bolts
    G10588397Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the A/C compressor bracket (A).
    Fig 2: A/C Compressor Bracket
    G10588398Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the oil pan (A) after removing the bolts.

    Insert the blade of SST (09215-3C000) between the ladder frame and oil pan. Cut off applied sealer and remove the lower oil pan.

    Fig 3: Removing Oil Pan
    G10588399Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • Insert the SST between the oil pan and the ladder frame by tapping it with a plastic hammer in the direction of (1) arrow.
    • After tapping the SST with a plastic hammer along the direction of (2) arrow around more than 2/3 edge of the oil pan, remove it from the ladder frame.
    • Do not turn over the SST abruptly without tapping. It be result in damage of the SST.
  7. Set No. 1 cylinder to TDC/compression.
    1. Turn the crankshaft pulley and align its groove with the timing mark "T" of the timing chain cover.
      Fig 4: Aligning Groove With Timing Chain Cover Mark
      G10588400Courtesy of HYUNDAI MOTOR AMERICA
    2. Confirm that the sprocket timing mark (A) is visually aligned with center of adjacent cast timing notch (B) and the drive shaft timing mark (C) is visually aligned with the housing timing mark (D).
    Fig 5: Sprocket Timing Mark Aligned With Timing Notch
    G10588401Courtesy of HYUNDAI MOTOR AMERICA
    Fig 6: Drive Shaft Timing Mark Aligned With Housing Timing Mark
    G10588402Courtesy of HYUNDAI MOTOR AMERICA
  8. Put a mark on the timing chain link (A) corresponding to the timing mark (B) of the sprocket.
    Fig 7: Placing Timing Mark On Timing Chain Link Corresponding To Sprocket Timing Mark
    G10588403Courtesy of HYUNDAI MOTOR AMERICA
  9. Insert a stopper pin (A) into the hole on the tensioner after compressing the balance shaft chain tensioner piston.
    Fig 8: Positioning Stopper Pin Into Hole
    G10588404Courtesy of HYUNDAI MOTOR AMERICA
  10. Remove the BSM mounting bolts.
    Fig 9: Removing BSM Mounting Bolts
    G10588405Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the BSM (Balance Shaft Module) (A) while taking off the chain from the sprocket.
    Fig 10: Removing/Installing BSM
    G10588406Courtesy of HYUNDAI MOTOR AMERICA
    NOTE: Do not disassemble the BSM (Balance Shaft Module).