Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Piston, Connecting Rod, and Bearing Removal

Chevrolet Sonic Repair Manual / Powertrain / Engine / Engine Block / Cylinder Block / Piston, Connecting Rod, and Bearing Removal

  1. Install the crankshaft balancer bolt.
  2. Set the pistons 1 and 4 to TDC in direction of engine rotation.

  3. Note:

    Note cylinder sequence.

  4. Mark the connecting rod with the connecting rod bearing cover (1).

  5. Remove the 4 connecting rod bearing caps bolts (2) of cylinder 1 and 4.
  6. Remove the connecting rod bearing caps (1) and the connecting rod bearing (3).

  7. Push the pistons 1 and 4 (1) out of the cylinder bore (2).
  8. Note:

    The shear surfaces of the con-rod and the con-rod bearing cover form a unique fit and must not be swapped or damaged. Do not lay down on the shear surfaces.

  9. Remove the pistons 1 and 4 (1).
  10. Turn crankshaft on crankshaft balancer through 180° in direction of rotation of engine.

  11. Note:

    Note cylinder sequence.

  12. Mark the connecting rod with the connecting rod bearing cover (1).

  13. Remove the 4 connecting rod bearing caps bolts (2) of cylinder 2 and 3.
  14. Remove the connecting rod bearing caps (1) and the connecting rod bearing (3).

  15. Push the pistons 2 and 3 (1) out of the cylinder bore (2).
  16. Note:

    The shear surfaces of the con-rod and the con-rod bearing cover form a unique fit and must not be swapped or damaged. Do not lay down on the shear surfaces.

  17. Remove the pistons 2 and 3 (1).

  18. Note:

    Observe correct fitting position, observe alignment.

  19. Remove the connecting rod bearing (1, 2).
  20. Check the components. Refer to Piston, Connecting Rod, and Bearing Cleaning and Inspection.
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