Cruze

Piston, Connecting Rod, and Bearing Cleaning and Inspection

Special Tools

EN-45059 Torque Angle Sensor Kit

For equivalent regional tools, refer to Special Tools .

1. Remove the sump. Refer to Sump Removal .



2. Remove the connecting rod bearing cap (1).




2.1.	Mark the installation position (1) of the connecting big end bearing cap.

2.2.	Remove the 2 bolts.

2.3.	Degrease the connecting big end bearing cap and wet the connecting big end bearing clip with engine oil.

Note: Do not rotate the crankshaft.

3. Lay on plastigauge. Refer to Adhesives, Fluids, Lubricants, and Sealers .

Lay plastigauge (flexible plastic thread) over the entire width of the connecting big end bearing journal.

4. Install the connecting big end bearing cap.

Caution: Refer to Fastener Caution in the Preface section.

5. Tighten the 2 bolts in three passes using the EN-45059 sensor kit:

5.1.	First pass tighten to 35 N·m (26 lb ft)

5.2.	Second pass tighten to an additional 45°

5.3.	Third pass tighten to an additional 15°




6. Remove the 2 bolts.
7. Remove the connecting rod bearing cap (1).




Note: When reading the value, do not confuse millimetres and inches on the measuring scale (1).

8. Measure the connecting big end bearing play.

•	Compare the width of the flattened plastic thread with the measuring scale.

•	Permissible connecting big end bearing play: 0.019-0.071 mm (0.0007-0.0028 in).

Note: Check markings on parts.

9. Install the connecting big end bearing cap.

•	Wet the connecting big end bearing journal and con-big end bearing clips with engine oil.

•	Renew the bolts.

10. Tighten the 2 bolts in three passes using the EN-45059 sensor kit:

10.1.

First pass tighten to 35 N·m (26 lb ft)

10.2.

Second pass tighten to an additional 45°

10.3.

Third pass tighten to an additional 15°

11. Install the oil pan. Refer to Sump Installation .