GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Aveo 🢒 Engine 🢒 Engine Mechanical - 1.5L 🢒 Oil Pump Cleaning and Inspection

Inspection Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.


    Object Number: 1241648 Size: SH
  1. Clean the oil pump and the engine block gasket mating surfaces.
  2. Remove the safety relief valve bolt.
  3. Remove the safety relief valve and the spring.
  4. Remove the oil pump-to-crankshaft seal.

    5. Object Number: 1241650 Size: SH
  5. Remove the oil pump rear cover bolts.
  6. Remove the rear cover.
  7. Clean the oil pump housing and all of the parts.
  8. Inspect all of the parts for signs of wear. Refer to Engine Mechanical Specifications .
  9. Coat all of the oil pump parts with clean engine oil.
  10. Reinstall all of the oil pump parts.

    11. Notice: Fill oil pump cavities with petroleum jelly prior to installation. This will ensure that there is oil pressure immediately on start-up and will prevent engine damage.

  11. Install the oil pump rear cover and the bolts.

    12. Tighten
    Tighten the oil pump rear cover bolts to 8 N·m (71 lb in).

  12. Install the safety relief valve, the spring, the washer, and the bolt.

    13. Tighten
    Tighten the oil pump safety relief valve bolt to 40 N·m (30 lb ft).