Flywheel: Service and Repair

Engine Flywheel Replacement- Manual Transmission

- Tools Required
- J 44643 Flywheel Holding Tool
- J 36660-A Torque Angle Meter

Removal Procedure





1. Remove the transmission.
2. Remove the starter.
3. Remove the clutch.
4. Install the J 44643 to the starter opening in order to hold the flywheel.





Important: The dual mass flywheel may require re-indexing in order to access the flywheel to crankshaft bolts through the secondary ring of the flywheel.

5. In order to access the flywheel to crankshaft bolts re-index the dual mass flywheel using the following procedure.
5.1. Install 2 bolts into the clutch pressure plate mounting holes 180 degrees apart. Do not use the clutch pressure plate bolts. Use a bolt of the correct thread and a length that protrudes enough to use a pry bar.
5.2. Using a long pry bar turn the secondary ring of the dual mass flywheel clockwise until the flywheel mounting bolts can be accessed. It may require to turn the secondary ring past the bolt holes in order to compensate the spring tension.





6. Loosen the flywheel mounting bolts and discard.
7. Remove the J 44643.
8. Remove the flywheel.





9. Remove the pilot bearing using a hammer and a punch from the flywheel. The pilot bearing is removed from the crankshaft side of the flywheel.

Inspection and Repair





1. Inspect the flywheel for the following:
- Missing or damaged clutch plate pins (1)
- Excessive wear to the ring gear teeth (2)
- Broken damper springs (3)
- Loose rivets (4)
- Clutch surface for cracking, hot spots, grooved, or excessive wear (5)
2. Replace the flywheel assembly if any of the conditions are found.
3. Replace the ring gear on the flywheel if teeth are worn or damaged.





4. Using the following procedures replace the ring gear on the flywheel:
4.1. Heat the ring gear evenly with a torch. Do not overheat.
4.2. Using a hammer and punch remove the ring gear.

Installation Procedure





1. Replace the ring gear, if removed.

Important: When heating the ring gear with a torch do not overheat. Do not get the ring gear so hot that it turns blue or red.

1.1. Heat the ring gear evenly with a torch.
1.2. Using a hammer and a brass punch install the ring gear until seated.





2. Install the pilot bearing in the flywheel.





3. Install the flywheel assembly.

Important: Use NEW bolts to install the flywheel.

4. Loosely install the NEW flywheel bolts.





5. Install the J 44643 in order to hold the flywheel from rotating.





Notice: Refer to Fastener Notice in Service Precautions.

6. Use the following steps and the proper sequence to tighten the bolts:
6.1. Tighten the flywheel bolts to 78 Nm (58 ft. lbs.).
6.2. Tighten the flywheel bolts to 60 degrees using the J 36660-A.
6.3. Tighten the flywheel bolts again to 60 degrees using the J 36660-A.
7. Remove the J 44643.
8. Install the clutch.
9. Install the starter.
10. Install the transmission.