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 .

Note: Do not rotate the crankshaft.

1. Lay on a suitable plasti(gauge) (flexible plastic thread) over the entire width of the connecting rod bearing journal.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the connecting big end bearing cap.
3. Tighten the 2 bolts in three steps:

3.1.	In first pass tighten to 25 N·m (19 lb ft)

3.2.	In second pass tighten to 90 degrees using the EN-45059 angle sensor

4. Remove the con-rod bearing cap bolts.
5. Remove the connecting big end bearing cap.




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

6. Measure the con-rod bearing play.

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

•	Permissible big end bearing play: 0.09-0.32 mm (0.004-0.014 lb in).

1. Measure the big end bearing diameters at 3 points A, B and C with the internal measuring device.
2. Work out the average connecting rod diameter.

Formula: A + B + C /3.




3. Measure at points I and II with the micrometre gauge (1).



4. Measure the connecting big end bearing journal diameter at 2 points.

Formula: I + II/2.

5. Work out the average connecting big end bearing journal diameter.
6. Determine the connecting big end bearing play.

Calculation formula: average big end bearing diameter -- average big end bearing journal diameter.

7. Perform the target/actual comparison.

Permissible big end bearing play: 0.09-0.32 mm (0.004-0.014 lb in).