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Home >> Kia >> 2002 >> Optima LX, 2.7 8 >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> 2.7L V6 Engine >> Main Moving System >> Crankshaft >> Installation

Main Moving System: Crankshaft: Installation

  1. Install the grooved main bearing (upper bearing) on the cylinder block side.
    Fig 1: Installing Main Bearings
    G00328000Courtesy of KIA MOTORS AMERICA, INC.
  2. Install the grooveless main bearing (lower bearing) on the main bearing cap side.
  3. Install the crankshaft. Apply engine oil to the journal and pin.
  4. Caps should be installed with the arrow mark directed toward the front of the engine. The cap number sequence must be correct.
    Fig 2: Installing Main Bearing Caps
    G00328001Courtesy of KIA MOTORS AMERICA, INC.
  5. Tighten all cap bolts to the specified torque and then rotate all bolts to specified angle.

    Tightening torque

    Main bearing cap bolts :

    M8:14-18 Nm (140-180 kg.cm, 10-13 lb.ft) + (90°~94°) M10: 27-33 Nm (270-330 kg.cm, 19.5-23.9 lb.ft)+(90°~94°)

  6. Cap bolts should be tightened evenly in from 4 to 5 stages before they are tightened to the specified torque.
  7. Make certain that the crankshaft turns freely and has the proper end play.

    Crankshaft end play

    Standard : 0.070-0.250 mm (0.0028-0.0098 in.)

    Limit : 0.35 mm (0.014 in.)

    Fig 3: Checking Crankshaft End Play
    G00328002Courtesy of KIA MOTORS AMERICA, INC.
  8. Using the special tool (09231-33000), install the rear oil seal in the oil seal case.
    Fig 4: Identifying Crankshaft Rear Oil Seal Installer (09231-33000)
    G00328003Courtesy of KIA MOTORS AMERICA, INC.
  9. Apply sealant to the area shown in the illustration. Install the oil seal case on the cylinder block.

    Tightening torque

    Oil seal case bolt :

    10-12 Nm (100-120 kg.cm, 7.3-8.6 lb.ft)

    Fig 5: Installing Oil Seal Case
    G00328004Courtesy of KIA MOTORS AMERICA, INC.
  10. Tighten the transaxle mounting plate to the specified torque.

    Tightening torque

    Transaxle mounting plate bolt:

    10-12 Nm (100-120 kg.cm, 7.3-8.6 lb.ft)

  11. Tighten the drive plate and the adapter plate.

    Tightening torque

    Drive plate and adaptor plate bolt :

    73-77 Nm (730-770 kg.cm, 53-55 lb.ft)

Fig 6: Installing Drive Plate & Adapter Plate
G00328005Courtesy of KIA MOTORS AMERICA, INC.