REMOVAL & INSTALLATION
See Figures 1 through 15
Prior to any vehicle service that requires the removal of the actuator cylinder, the master cylinder pushrod must be disconnected from the clutch pedal. If not disconnected, permanent damage to the actuator cylinder will occur if the clutch pedal is depressed while the actuator cylinder is disconnected.
- Disconnect the negative battery cable.
- Remove the clutch master cylinder pushrod from the clutch pedal.
- Remove the transaxle.
- If any of the parts are to be reused, mark the pressure plate assembly and the flywheel so they can be assembled in the same position. They were balanced as an assembly at the factory.
- Loosen the attaching bolts one turn at a time until spring tension is relieved.
- Support the pressure plate and remove the bolts. Remove the pressure plate and clutch disc. Do not disassemble the pressure plate assembly. Replace it if defective.
- Inspect the flywheel, clutch disc, pressure plate, throwout bearing and the clutch fork and pivot shaft assembly for wear. Replace the parts as required. If the flywheel shows any signs of overheating or if it is badly grooved or scored, it should be resurfaced or replaced.
- Clean the pressure plate and flywheel mating surfaces thoroughly.
- Clean all parts well. Apply a small amount of high temperature grease to the pilot bearing inside the end of the crankshaft.
- Position the clutch disc and pressure plate into the installed position, and support with clutch aligning tool J-29074 or equivalent. The clutch plate is assembled with the damper springs offset toward the transaxle. One side of the factory supplied clutch disc should be stamped Flywheel Side.
Install the pressure plate-to-flywheel bolts. Tighten them gradually in a cross pattern as follows:
- Install lightly seat all bolts.
- Tighten bolts 1, 2, 3, then 4, 5, and 6 to 12 ft. lbs. (16 Nm).
- Final torque bolts 1, 2, 3, then 4, 5, 6 to 15 ft. lbs. (20 Nm).
- Lubricate the outside groove and the inside recess of the release bearing with high temperature grease. Wipe off any excess. Install the release bearing.
- Pack the inside recess of the release bearing completely full of chassis grease.
Be sure the bearing pads are located on the fork ends and both spring ends are in the fork holes with the spring completely seated in bearing groove.
- Install the transaxle.
- Install clutch master cylinder pushrod to the clutch pedal and install the retaining clip.
- If equipped with cruise control, check switch adjustment at clutch pedal bracket.
When adjusting the cruise control switch, do not exert an upward force on the clutch pedal pad of more than 20 ft. lbs. (27 Nm) or damage to the master cylinder pushrod retaining ring can result.
- Connect the negative battery cable.
- Bleed clutch system as necessary and road test vehicle.
The clutch system in the General Motors J-Body vehicles is a hydraulic system and requires no adjustments. If the system is malfunctioning, use normal clutch diagnosis to determine the problem.