Clutch: Service and Repair

Clutch Assembly Replacement

^ Tools Required
- J 35271 Flywheel Holder

Removal Procedure
1. Remove the manual transmission assembly from the vehicle.





2. Install the J 35271 to the engine block in order to hold the flywheel stationary (2).
3. Install a universal clutch alignment arbor to support the clutch disc during the pressure plate removal.
4. Slowly loosen the 6 pressure plate cover bolts evenly until the pressure plate diaphram spring tension is completely released.
5. Remove the 6 pressure plate cover bolts and the pressure plate assembly from the flywheel.
6. Remove the clutch disc and the universal clutch alignment arbor from the flywheel.
7. Remove the J 35271 from the engine block.





Important: DO NOT use alcohol-based solvents or other cleaning agents on the clutch disc. Using solvents on the clutch disc may cause slipping and premature clutch wear.

8. Clean the flywheel and pressure plate-to-clutch disc mating surfaces of all oil, grease and metallic particles.
9. Clean the clutch disc using a clean, dry cloth.
10. Inspect the flywheel for:
^ Cracks
^ Heat checking
^ Grooves and excessive wear
^ If the flywheel appears excessively worn, resurface or replace the flywheel as necessary.
11. Inspect the pilot bearing for smooth rotation. If the bearing does not spin freely, replace the pilot bearing.

Installation Procedure
1. If the flywheel was removed, install the flywheel.





Important: When installing the clutch disc, make sure the torsional springs are offset to the rear facing the transmission.

2. Install the J 35271 (2) to the engine block in order to hold the flywheel stationary.
3. Install the clutch disc to the flywheel using the universal clutch alignment arbor to center the disc on the flywheel and support the disc in place.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the pressure plate to the flywheel; secure the pressure plate with 6 pressure plate cover bolts (1).
^ Tighten the 6 pressure plate bolts evenly in a diagonal pattern to prevent clutch disc distortion. Then, tighten the 6 bolts in the same diagonal pattern to 23 Nm (17 ft. lbs.).
5. Remove the J 35271 from the engine block and the universal clutch alignment arbor.
6. Lubricate the transmission input shaft splines and the clutch release bearing with a thin coat of wheel bearing lubricant GM P/N 1051344 (Canadian P/N 993037), or the equivalent.
7. Lubricate the pilot bearing with a thin coat of wheel bearing lubricant GM P/N 1051344 (Canadian P/N 993037), or the equivalent.
8. Install the manual transmission assembly into the vehicle.