Main Moving System: Crankshaft: Installation

1. Install grooved main bearing (upper bearing) and thrust bearing on cylinder block side.
2. Install grooveless main bearing (lower bearing) on main bearing cap side.
3. Install crankshaft. Apply engine oil to journal and pin.
4. Caps should be installed with arrow mark directed toward front of engine.
5. Tighten cap bolts to specified torque in sequence.

   Tightening torque

   Main bearing cap bolts : 25 Nm (250, 18 lb.ft) + (90°~94°)

   Fig 1: Identifying Mean Bearing Cap Bolt Tightening Sequence

   Courtesy of KIA MOTORS AMERICA, INC.
6. Cap bolts should be tightened evenly in from 4 to 5 stages before they are tightened to specified torque.
7. Make certain that crankshaft turns freely and has proper end play.
8. Using a special tool, install oil seal in oil seal case.
   Fig 2: Identifying Crankshaft Rear Oil Seal Installer (09231-21000)

   Courtesy of KIA MOTORS AMERICA, INC.
9. Install the oil seal into the oil seal case so that the oil hole in the separator is directed downward (arrow shown in illustration).
10. Install the new oil seal case gasket and oil seal case assembly.
    Fig 3: Installing Oil Seal Case Assembly

    Courtesy of KIA MOTORS AMERICA, INC.
11. Install the rear plate to the cylinder block.
12. Install the flywheel assembly and tighten the bolts to the specified torque.

Tightening torque

Flywheel bolt :

130-140 Nm (1,300-1,400 kg.cm, 94-101 lb.ft)