Cruze

Piston, Connecting Rod, and Bearing Installation

Special Tools

EN-470-B Angular Torque Wrench

For equivalent regional tools refer to Special Tools .

1. Adjust the piston ring joint as shown. Dislocate the piston rings 90° to each other.

•	Upper compression ring (1)

•	Lower compression ring (3)

•	Oil ring (2)

•	Oil ring spacer (4)

2. Lubricate the piston rings, piston, inner cylinder bore surface and a piston ring compressor with clean engine oil.
3. Install the piston ring compressor in order to compress the piston rings.




Note: The marks on piston heads and connecting rods must point to the timing side.

4. Install the pistons (1) along with the connecting rods (2)
5. Push the pistons down to the cylinder bore.



6. Lubricate the connecting rod bearings and the connecting rod bearing caps with engine oil.
7. Install the upper connecting rod bearings, the lower connecting rod bearings (1) and the connecting rod bearing caps (2).

Caution: Refer to Fastener Caution in the Preface section.

Caution: Refer to Torque-to-Yield Fastener Caution in the Preface section.





Note: Mind the fracture faces (1) of connecting rod bearing caps and connecting rods. Examine that the connecting rod bearing caps are installed in their original position.

8. Install 8 NEW connecting rod bearing cap nuts (3) in the following order:

8.1.	Tighten the nuts to 25 N·m (18 lb ft).

8.2.	Tighten the nuts to an additional 100°.

8.3.	Tighten the nuts to an additional 15°. Use EN-470-B wrench .