GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 Wave 🢒 Engine 🢒 Engine Mechanical - 1.5L 🢒 Crankshaft and Bearing Cleaning and Inspection

Tools Required
    • KM-470-B Angular Torque Gage
    • J 45059 Angle Meter

Inspection Procedure

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


    Object Number: 1241789 Size: SH
  1. Coat the crankshaft bearings with engine oil.
  2. Install the upper crankshaft bearings into the engine block crankshaft journals.
  3. Install the lower crankshaft bearings into the crankshaft bearing caps.
  4. Install the crankshaft.
  5. Inspect the crankshaft end play with the crankshaft bearings installed.
  6. Check for permissible crankshaft end play. Refer to Engine Mechanical Specifications .

    7. Object Number: 1241794 Size: SH
  7. With the crankshaft mounted on the front and the rear crankshaft bearings, check the middle crankshaft journal for permissible out-of-round, runout. Refer to Engine Mechanical Specifications .

    8. Object Number: 1241455 Size: SH

    Important: Grease the crankshaft journals and lubricate the crankshaft bearings slightly so that the plastic gaging thread does not tear when the crankshaft bearing caps are removed.

  8. Measure all of the crankshaft bearing clearances using a commercially available plastic gaging, ductile plastic threads.
  9. Cut the plastic gaging threads to the length of the bearing width. Lay them axially (1) between the crankshaft journals and the crankshaft bearings (1).

    10. Object Number: 1241797 Size: SH
  10. Install the crankshaft bearing caps.

    11. Notice: Refer to Fastener Notice in the Preface section.

  11. Install the crankshaft bearing cap bolts.

    12. Tighten

        • Tighten the crankshaft bearing cap bolts to 50 N·m (37 lb ft).
        • Using the J 45059 or the KM-470-B  (1), tighten the crankshaft bearing cap bolts another 45 degrees plus 15 degrees.

    Object Number: 1241457 Size: SH
  12. Remove the crankshaft bearing caps.
  13. Measure the width of the flattened plastic thread (1) of the plastic gaging using the scale printed on the plastic gaging package. Plastic gaging is available for different tolerance ranges.
  14. Inspect the bearing clearances for permissible tolerance ranges. Refer to Engine Mechanical Specifications .