Balance Shaft Clean And Inspect (Unit Repair)
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Clean balance shafts in solvent. Remove balance shaft front bearing carriers from balance shafts.
- Inspect bearing surfaces on balance shafts for scoring or unusual wear.NOTE: Care must be used when supporting balance shaft in vise to avoid damage to balance shaft. If balance shaft is damaged, it must be replaced.
- Inspect balance shaft drive sprockets for wear, damage, or missing teeth.
- When installing new balance shaft drive sprockets, wrap balance shaft with a shop rag and support in a vise being careful not to scratch, nick, or mar balance shaft.
Torque:
Balance Shaft Drive Sprockets: 55 N.m (41 ft-lbs)
- Measure rear bearing journals on balance shafts, journals should be 36.723 - 36.743 mm (1.4458 - 1.4466 in.) in diameter.
- Measure front bearing journals on balance shafts, front bearing journals should be 20.020 - 20.000 mm (0.7881 - 0.7874 in.) in diameter.
- When balance shafts have been installed in engine block, check for smooth rotation, sticking, binding, or roughness.