LEMON Manuals: Even more car manuals for everyone
Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - MVB 4 Speed) >> Repair Instructions - Off Vehicle >> Transmission Disassemble >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Inspecting Front Clutch Disc
    GM2012444Courtesy of GENERAL MOTORS CORP.
  1. Inspect the front clutch disc.
    2. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed number is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  2. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
    3. Fig 2: Inspecting Forward Clutch Return Spring Sub-Assembly
    GM2012445Courtesy of GENERAL MOTORS CORP.
  3. Inspect the forward clutch return spring sub-assembly.
  4. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Specification:  Standard free length - 21.69 mm (0.853 in)

    5. Fig 3: Inspecting Overdrive Brake Return Spring Sub-Assembly
    GM2012447Courtesy of GENERAL MOTORS CORP.
  5. Inspect the overdrive brake return spring sub-assembly.
  6. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Specification:  Standard free length - 17.88 mm (0.703 in)

    7. Fig 4: Inspecting Reverse Clutch Disc
    GM2012449Courtesy of GENERAL MOTORS CORP.
  7. Inspect the reverse clutch disc.
    8. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed mark is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  8. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
    9. Fig 5: Inspecting Direct Clutch Disc
    GM2012580Courtesy of GENERAL MOTORS CORP.
  9. Inspect the direct clutch disc.
    10. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed mark is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  10. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
    11. Fig 6: Measuring Free Length Of Spring Together With Spring Seat
    GM2012586Courtesy of GENERAL MOTORS CORP.
  11. Inspect the direct clutch return spring sub-assembly.
  12. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Specification:  Standard free length - 31.7 mm (1.248 in)

    13. Fig 7: Applying Low Pressure Compressed Air To Check Ball
    GM2012587Courtesy of GENERAL MOTORS CORP.
  13. Inspect the direct clutch piston sub-assembly.
  14. Shake the direct clutch pin and confirm that the check ball is not stuck.
  15. Apply low pressure compressed air to the check ball and confirm that there is no air leakage.
    16. Fig 8: Applying Low Pressure Compressed Air To Check Ball
    GM2012589Courtesy of GENERAL MOTORS CORP.
  16. Inspect the intermediate shaft sub-assembly.
  17. Shake the direct clutch pin and confirm that the check ball is not stuck.
  18. Apply low pressure compressed air to the check ball and confirm that there is no air leakage.
    19. Fig 9: Inspecting Front Clutch Disc
    GM2012444Courtesy of GENERAL MOTORS CORP.
  19. Inspect the 2nd coast and the overdrive brake disc.
    20. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed mark is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  20. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
  21. Inspect the 2nd brake disc.
    22. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed mark is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  22. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
    23. Fig 10: Measuring Free Length Of Spring Together With Spring Seat
    GM2012593Courtesy of GENERAL MOTORS CORP.
  23. Inspect the 2nd brake piston return spring sub-assembly.
  24. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Specification:  Standard free length - 14.65 mm (0.576 in)

    25. Fig 11: Inspecting 1ST And Reverse Brake Disc
    GM2012595Courtesy of GENERAL MOTORS CORP.
  25. Inspect the 1st and reverse brake disc.
    26. NOTE:
    • If the lining of any disc is peeled off or discolored, or even if part of the printed mark is damaged, replace all the discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
  26. Check whether the sliding surfaces of the discs, plates and flanges are worn or burnt. If necessary, replace them.
    27. Fig 12: Inspecting Overdrive Brake Return Spring Sub-Assembly
    GM2012447Courtesy of GENERAL MOTORS CORP.
  27. Inspect the 1st and reverse brake return spring sub-assembly.
  28. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Specification:  Standard free length - 13.96 mm (0.5496 in)

    29. Fig 13: Removing Front Differential Case Front Tapered Roller Bearing From Differential Case Using A Puller
    GM2012775Courtesy of GENERAL MOTORS CORP.
  29. Using a puller (1), remove the front differential case front tapered roller bearing from the differential case.
    30. Fig 14: Removing Front Differential Case, Front Tapered Roller Bearing Outer Race From Transaxle Housing Using A Puller
    GM2012777Courtesy of GENERAL MOTORS CORP.
  30. Using a puller (1), remove the front differential case front tapered roller bearing outer race from the transaxle housing.
    31. Fig 15: Removing Front Differential Case Rear Tapered Roller Bearing From Differential Case Using A Puller
    GM2012781Courtesy of GENERAL MOTORS CORP.
  31. Using a puller (1), remove the front differential case rear tapered roller bearing from the differential case.
    32. Fig 16: Removing Front Differential Case Rear Tapered Roller Bearing Outer Race From Transaxle Case
    GM2012782Courtesy of GENERAL MOTORS CORP.
  32. Remove the front differential case rear tapered roller bearing outer race from the transaxle case.
    33. Fig 17: View Of Front Differential Ring Gear
    GM2012784Courtesy of GENERAL MOTORS CORP.
  33. Remove the front differential ring gear.
  34. Place matchmarks on the front differential ring gear and differential case.
    35. Fig 18: Releasing Lock Plate
    GM2012790Courtesy of GENERAL MOTORS CORP.
  35. Release the lock plate.
    36. Fig 19: View Of Ring Gear Lock Plates Bolts
    GM2012791Courtesy of GENERAL MOTORS CORP.
  36. Remove the 8 bolts and the 4 ring gear lock plates.
    37. Fig 20: Removing Front Differential Ring Gear From Differential Case Using A Plastic Hammer
    GM2012793Courtesy of GENERAL MOTORS CORP.
  37. Using a plastic hammer, remove the front differential ring gear from the differential case.
    38. Fig 21: Removing Front Differential Pinion Shaft Straight Pin
    GM2012794Courtesy of GENERAL MOTORS CORP.
  38. Remove the front differential pinion shaft straight pin.
  39. Using a punch and a hammer, release the differential case.
    40. Fig 22: Removing Straight Pin Using A Pin Punch And A Hammer
    GM2012796Courtesy of GENERAL MOTORS CORP.
  40. Using a pin punch and a hammer, remove the straight pin.
    41. Fig 23: Front No. 1 Differential Pinion Shaft And Front Differential Case
    GM2012800Courtesy of GENERAL MOTORS CORP.
  41. Remove the front No. 1 differential pinion shaft from the front differential case.
    42. Fig 24: View Of Front Differential Case
    GM2012801Courtesy of GENERAL MOTORS CORP.
  42. Remove the 2 front differential pinions, 2 front differential pinion thrust washers, 2 front differential side gears and 2 front differential side gear thrust washers from the front differential case.
    43. Fig 25: Inspecting Differential Side Gear Backlash
    GM2012803Courtesy of GENERAL MOTORS CORP.
  43. Inspect the differential side gear backlash.
  44. Measure the differential side gear backlash while holding 1 pinion gear toward the case.

    Specification:  Standard backlash - 0.05 to 0.20 mm (0.00196 to 0.00787 in)

    If the backlash is not within the specified range, install the correct thrust washer to the side gear.

  45. Select thrust washers which will ensure that the backlash is within the specified range for both sides. Refer to Transmission General Specifications  for Differential Side Gear Thrust Washer Chart.

    If the backlash is not within the specified range, install a thrust washer of a different thickness.

scientia non olet · About LEMON Manuals