Cruze

Crankshaft Balancer Cleaning and Inspection

Special Tools

EN-50431 BSM - Backlash Measure Adaptor

For equivalent regional tools, refer to Special Tools .

Warning: Refer to Safety Glasses and Compressed Air Warning in the Preface section.

1. Remove the coating remains on the balance shaft module gear by using compressed air.
2. Check the balancer for damage.




Note: The EN-50431 adaptor must be horizontal to the balancer.

3. Install the EN-50431 adaptor (1) to the balancer.
4. Install the dial gauge (2), at a distance "a" of 38.217 mm (1.505 in) to the centre of the balance shaft axle.



5. Using the dial gauge (2), move the balance shaft module gear by using fingers and measure the backlash.
6. Compare the measurement results with the engine mechanical specifications. Refer to Engine Mechanical Specifications .
7. If the balance shaft module is out of specification, try the procedure (1~6) again.
8. If the balance shaft module gear backlash is out of the specifications in the table below again, replace the balance shaft module by a NEW balance shaft module.