GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9145T M/T Clutch Aligner

Removal Procedure


    Object Number: 889956  Size: SH
  1. Remove the transaxle from vehicle . Refer to Transmission Assemble removal procedure.
  2. Remove the release fork and bearing from transaxle by unsnapping fork from ball stud.

  3. Object Number: 898362  Size: SH
  4. Seperate the release bearing from release fork by sliding the bearing from the fork.
  5. Important: The release bearing is packed with grease and may not be washed in solvent

  6. Check the release bearing for excessive play and for minimal bearing drag. Replace the bearing if excessive play or no/little drag is found.

  7. Object Number: 898358  Size: SH
  8. Use a feeler gage to measure the distance between clutch housing cover assembly (pressure plate) and flywheel surfaces to determine clutch disc facing thickness. Replace disc if not within specification.
  9. Clutch Disc Facing Thickness

    Specifications
    Thickness Range: 4.65-701. mm (0.18-0.28 in).


    Object Number: 898360  Size: SH
  10. Remove the clutch housing cover assembly (pressure plate to flywheel bolts.
  11. Remove the clutch housing cover assembly and clutch disc.

Inspection Procedure


    Object Number: 898364  Size: SH

    Important: Black random spotting on friction surface of clutch housing cover assembly (pressure plate) is normal.

  1. Inspect clutch housing cover assembly surface for excessive wear, chatter marks, cracks or overeheating (indicated by blue discoloration). Replace clutch housing cover assembly if damaged
  2. Check for clutch housing cover assembly warpage using a straight edge and feeler gage.
  3. Clutch Housing Cover Assembly Warpage

    Specifications
    Maximum: 0.15 mm (0.006 in).


    Object Number: 898361  Size: SH
  4. Check the clutch disc facings for oil or burnt spots. Replace the clutch disk if necessary.
  5. Check the disc for loose damper springs, hub, or rivets. Replace disc if any are broken or excessively loose

  6. Object Number: 898366  Size: SH
  7. Inspect the flywheel ring gear for wear or damage. Replace the flywheel if damaged
  8. Important: Black random spotting on friction surface of flywheel is normal.

  9. Check the flywheel to clutch disc contact surface for wear, cracks, chatter marks, or overheating (indicated by blue discloration). Repair or replace flywheel if necessary.
  10. Flywheel Thickness

    Specifications
    Minimum: 28 mm (1.102 in).


    Object Number: 878422  Size: SH
  11. Measure the flywheel runout using a dial indiacator for at least two revolutions. Measure the runout at a diameter junt inside the clutch housing cover (pressure plate) bolt holes. Push the crankshaft forward to take up thrust bearing clearance. Repair or replace flywheel if not within specification
  12. Flyout Runout

    Specification
    Maximum: 0.15 mm (0.006 in).


    Object Number: 878425  Size: SH
  13. Check the flywheel for warpage using a straight edge and feeler gage.
  14. Flywheel Warpage

    Specifications
    (Maximum) : 0.05 mm (0.006 in).


    Object Number: 898369  Size: SH
  15. Remove the flywheel-to-crankshaft bolts and remove flywheel.

Installation Procedure


    Object Number: 898373  Size: SH
  1. Install the flywheel-to-crankshaft and start bolts.
  2. Tighten the bolts in a crisscross pattern.
  3. Tighten
    Tighten the flywheel-to-crankshaft bolts (in crisscross pattern) to 80 N·m(59 lbs ft).


    Object Number: 898360  Size: SH
  4. Install the M/T Clutch Aligner SA9145T in the clutch disc and push in until it bottoms out in the crankshaft.

  5. Object Number: 898380  Size: SH
  6. Install clutch disc and clutch housing civer assembly (pressure plate) with purple dot on clutch housing cover assembly aligned as close as possible to the mark on flywheel. Position the clutch sisc so that the side marked "FLYWHEEL SIDE" is toward flywheel. Start clutch housing cover assembly to flywheel bolts.