Engine Flywheel Replacement

REMOVAL PROCEDURE

^ TOOLS REQUIRED
- J 8001 Dial Indicator Set
- J 26900-13 Magnetic Base

1. Remove the transmission from the cylinder block.
2. Remove the clutch from the flywheel (2) on manual transmission equipped vehicles.
3. Inspect the ring gear. Replace the flywheel (2) if the ring gear is damaged, cracked or worn.
4. Inspect the surface which is contacting the clutch disc on manual transmission equipped vehicles. Replace the flywheel if the surface is damaged or excessively worn.
5. Use a J 8001 with a J 26900-13 in order to measure the flywheel (2) for face runout. Replace the flywheel if the runout exceeds 0.2 mm (0.0078 in).
6. Mark the flywheel-to-engine position.
7. Remove the six flywheel retaining bolts.
8. Remove the flywheel from the crankshaft.
9. Remove the nylon clutch pilot bushing from the crankshaft (1).
10. Clean the grease and dirt from the flywheel (2) outer surfaces using a suitable solvent.

INSTALLATION PROCEDURE
1. Install the flywheel to the crankshaft. Align the flywheel-to-engine marks.

NOTICE: Do not apply an excessive amount of sealant to the flywheel retaining bolt threads. Applying too much sealant will result in the sealant overflowing the bolt seat. This could cause the bolt to break loose during vehicle operation.

2. Apply GM P/N 12345493, or the equivalent, to the flywheel retaining bolt threads.

NOTICE: Refer to Fastener Notice in Service Precautions.

3. Install the flywheel retaining bolts to the flywheel.
^ Tighten the flywheel retaining bolts to 78 Nm (58 ft. lbs.).

4. Install the clutch to the flywheel on manual transmission equipped vehicles.
5. Install the transmission to the engine.