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Home >> Hyundai >> 2012 >> Equus Signature >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Block >> Cylinder Block >> Repair procedures >> Disassembly

Repair procedures: Disassembly

Engine removal is required for this procedure.

CAUTION:
  • Use fender covers to avoid damaging painted surfaces.
  • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.
  • When handling a metal gasket, take care not to fold the gasket or damage the contact surface of the gasket.
  • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.
NOTE:
  • Mark all wiring and hoses to avoid misconnection.
  • Turn the crankshaft pulley so that the No. 1 piston is at top dead center.
  1. Remove the engine assembly from the vehicle. (Refer to Engine And Transmission Assembly )
  2. Remove the intake manifold and exhaust manifold. (Refer to INTAKE AND EXHAUST SYSTEM - 5.0L )
  3. Remove the cylinder head. (Refer to Cylinder Head )
  4. Remove the timing chain. (Refer to Timing Chain )
  5. Remove the engine coolant temperature control assembly. (Refer to Thermostat )
  6. Remove the oil pump. (Refer to Oil Pump )
  7. Remove the adapter plate (A) and the drive plate (B).
    Fig 1: Identifying Adapter Plate And Drive Plate
    G08829859Courtesy of HYUNDAI MOTOR AMERICA
  8. Remove the crankshaft adapter (A).
    Fig 2: Identifying Crankshaft Adapter
    G08829860Courtesy of HYUNDAI MOTOR AMERICA
  9. Remove the cylinder block rear cover (A) and the gasket (B).
    Fig 3: Identifying Cylinder Block Rear Cover And Gasket
    G08829861Courtesy of HYUNDAI MOTOR AMERICA
  10. Attach the engine to engine stand for disassembly.
  11. Remove the cylinder block bank cover (A) and the gasket (B).
    Fig 4: Identifying Cylinder Block Bank Cover And Gasket
    G08829862Courtesy of HYUNDAI MOTOR AMERICA
  12. Remove the 4 separators (A).
    Fig 5: Identifying Separators
    G08829863Courtesy of HYUNDAI MOTOR AMERICA
  13. Check the connecting rod end play.
  14. Check the connecting rod cap oil clearance.
  15. Remove the piston and connecting rod assemblies.
    1. Using a ridge reamer, remove all the carbon from the top of the cylinder.
    2. Remove the connecting rod cap (A).
      Fig 6: Identifying Connecting Rod Cap
      G08829864Courtesy of HYUNDAI MOTOR AMERICA
    3. Push the piston, connecting rod assembly and upper bearing through the top of the cylinder block.
      NOTE:
      • Keep the bearings, connecting rod and cap together.
      • Arrange the piston and connecting rod assemblies in the correct order.
  16. Check the main bearing oil clearance.
  17. Check the crankshaft end play.
  18. Remove the lower crankcase assembly (A).
    Fig 7: Identifying Lower Crankcase Assembly
    G08829865Courtesy of HYUNDAI MOTOR AMERICA
  19. Lift the crankshaft (A) out of engine, being careful not to damage journals.
    Fig 8: Identifying Crankshaft
    G08829866Courtesy of HYUNDAI MOTOR AMERICA
    NOTE: Arrange the main bearings and center bearings in the correct order.
  20. Remove the oil jets (A).
    Fig 9: Identifying Oil Jets
    G08829867Courtesy of HYUNDAI MOTOR AMERICA
  21. Check fit between piston and piston pin.

    Try to move the piston back and forth on the piston pin. If any movement is felt, replace piston and piston pin as a set.

  22. Remove the piston rings.
    1. Using a piston ring expander, remove the 2 compression rings.
    2. Remove 2 side rails and the oil ring spacer by hand.
      NOTE: Arrange the piston rings in the correct order only.
  23. Disconnect connecting rod from piston.
    1. Remove the snap rings from piston.
    2. Remove the piston pin.
    3. Remove the connecting rod and the piston.