Tools Required

J 44225  Balance Shaft Bearing Remover/Installer

Fig 1: View Of Balance Shaft Journals
Courtesy of GENERAL MOTORS CORP.
1. Position the cylinder block so the cylinder head deck face is down and identify the following:
   • The left balance shaft bearings are in the shorter length balance shaft journal (3) and (4).
   • The right balance shaft - outer diameter is grooved, bearings are in the longer length balance shaft journal (1) and (2).
Fig 2: Identifying Front & Rear Bearings
Courtesy of GENERAL MOTORS CORP.
2. Identify the following:
   • Bearings (2) and (3) are the front bearings and bearings (1) and (4) are the rear bearings.
   • The rear bearings (1) and (4) have a slightly larger diameter than the front bearings (2) and (3). This allows for easier removal and installation of the front bearings. The rear bearings also have notches on them.
Fig 3: Installing 44225 Into Right Balance Shaft Bearing Bore
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: It may help to stand the block on end to aid in positioning the swivel end of J 44225  .
3. Install J 44225  into the right balance shaft bearing bore.
4. Position the swivel end inside lip of J 44225  against the frontside of the rear bearing.
5. Turn the nut clockwise to remove the bearing.
Fig 4: View Of Right Bearing
Courtesy of GENERAL MOTORS CORP.
6. Remove and discard the right rear bearing (1).
Fig 5: Installing 44225 Into Right Balance Shaft Bearing Bore
Courtesy of GENERAL MOTORS CORP.
7. Install J 44225  into the right balance shaft bearing bore.
8. Position the swivel end inside lip of J 44225  against the frontside of the front bearing.
9. Turn the nut clockwise to remove the bearing.
Fig 6: View Of Right Bearing
Courtesy of GENERAL MOTORS CORP.
10. Remove and discard the right front bearing (1).
Fig 7: Installing J 4425 Into Left Balance Shaft Bearing Bore
Courtesy of GENERAL MOTORS CORP.
11. Install J 44225  into the left balance shaft bearing bore.
12. Position the swivel end inside lip of J 44225  against the frontside of the rear bearing.
13. Turn the nut clockwise to remove the bearing.
Fig 8: View Of Left Bearing
Courtesy of GENERAL MOTORS CORP.
14. Remove and discard the left rear bearing (1).
Fig 9: Installing J 4425 Into Left Balance Shaft Bearing Bore
Courtesy of GENERAL MOTORS CORP.
15. Install J 44225  into the left balance shaft bearing bore.
16. Position the swivel end inside lip of J 44225  against the frontside of the front bearing.
17. Turn the nut clockwise to remove the bearing.
Fig 10: View Of Left Bearing
Courtesy of GENERAL MOTORS CORP.
18. Remove and discard the left front bearing (1).