Oil Pump Cleaning and Inspection. Chevrolet Joy 2008

For 1990-2009 cars

1. Using a thickness gauge (1), measure the side clearances of the inner and outer rotors.

Clearance Specification
Specification is standard 0.02-0.04 mm (0.0007-0.001 in).

2. Measure the tip clearances (1) of the inner and outer rotors.

Clearance Specification
Specification is standard 0.02-0.15 mm (0.0007-0.006 in).

3. Check the other components for damage or abnormal wear.