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Piston, Connecting Rod, and Bearing Installation

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools 

EN-45059  Angle Meter

For equivalent regional tools, refer to Special Tools .

  1. GM3213197

    The arrow (1) on the piston head must point to the timing side.

  2. NOTE:

    The connecting rod bearing caps must be installed in their original position.

  3. Note the marking (2) of the connecting rod and connecting rod cap.
  4. The piston ring joints must be displaced 120 degrees to each other.
  5. Set the crankshaft to top dead center (TDC) of combustion stroke of cylinder 2.
  6. Coat all pistons and cylinder bores with engine oil.
  7. GM3213173

    Install a piston ring compressor in order to compress the piston rings.

  8. Install the 2 pistons with connecting rods (2) and connecting rod upper bearing shells (1) into cylinder 1 and 4.
  9. GM3213168

    Install the 2 connecting rod bearing caps (2) with connecting rod lower bearing shells (1) into cylinder 1 and 4.

  10. CAUTION:

    Refer to Fastener Caution .

  11. Install the 4 NEW connecting rod bearing cap bolts (3) to the cylinder 1 and 4 and tighten in following order:
    1. Tighten the bolts in first pass to 45 N.m (33 lb ft).
    2. Tighten the bolts a final pass to an additional 60 degrees, using the EN-45059  meter.
  12. Turn crankshaft through 180 degrees and set crankshaft to TDC of combustion stroke of cylinder 1.
  13. GM3213175

    Install a piston ring compressor in order to compress the piston rings.

  14. Install the 2 pistons with connecting rod (2) with connecting rod upper bearing shells (1) into cylinder 2 and 3.
  15. GM3213171

    Install the 2 connecting rod bearing caps (3) with the connecting rod lower bearing shells (1) into cylinder 2 and 3.

  16. Install the 4 NEW connecting rod bearing cap bolts (4) to cylinder 2 and 3 and tighten in following order:
    1. Tighten the bolts in first pass to 45 N.m (33 lb ft).
    2. Tighten the bolts a final pass to an additional 60 degrees, using the EN-45059  meter.
  17. GM3213172

    Install a NEW oil pump suction pipe seal (1).

  18. Install the oil pan baffle including the oil pump suction pipe (3).
  19. Install the 2 oil pump suction pipe bolt (2) and tighten to 10 N.m (89 lb in).
  20. Install the 2 oil pan baffle bolts (4) and tighten to 10 N.m (89 lb in).