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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Engine Overhaul - 2.4L) >> Piston And Connecting Rod >> Inspection >> Crankshaft Pin Oil Clearance (PLASTIGAGE Method)

Crankshaft Pin Oil Clearance (PLASTIGAGE Method)

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. Wipe oil off the crankshaft pin and connecting rod bearing.
  2. Place a Plastigage in length equal to the bearing width on the pin shaft straight in alignment with the shaft center.
  3. Carefully install the connecting rod cap.
  4. Apply engine oil to the threaded portion and seat surface of the bolt before installing it.
  5. After installing each bolt and tightening it by fingers, tighten bolts alternately to properly assemble the cap.
  6. Tighten the bolt in several steps until the torque reaches 5.0 N.m (44 in-lb).
  7. Tighten the bolt in several steps until the torque reaches 20 N.m (15 ft-lb).
    Fig 1: Identifying Connecting Rod Cap Bolts
    G09663599Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  8. Put a paint mark on the bolt head as illustrated.
  9. Put a paint mark on the connecting rod at 90° position in the tightening direction of the bolt with reference to the paint mark position of the bolt.
    Fig 2: Identifying Connecting Rod Paint Mark
    G09663600Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    CAUTION:
    • When the tightening angle is smaller than the specified tightening angle, the appropriate tightening capacity cannot be secured.
    • When the tightening angle is larger than the specified tightening angle, remove the bolt to start from the beginning again according to the procedure.
  10. Tighten the bolt 90°, and make sure that the paint mark of the connecting rod is aligned with that of the bolt.
  11. Remove bolts and gently remove the connecting rod cap.
  12. Measure the crushed Plastigage width (area most widely crushed) using a scale printed on the Plastigage bag.

    Standard value: 0.018 - 0.045 mm (0.0007 - 0.0018 inch) 

    Limit: 0.1 mm (0.004 inch) 

    Fig 3: Measuring Plastigage Width
    G09663601Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.