Flywheel: Service and Repair

Engine Flywheel Replacement

Removal Procedure




1. If equipped with a automatic transmission, remove the transmission. Refer to Transmission Replacement Service and Repair in Automatic Transmission - Allison.
2. Remove the engine flywheel bolts.
3. Remove the engine flywheel.




4. If equipped with a manual transmission, remove the clutch. Refer to Clutch Assembly Replacement (6.6L/7.2L w/RPOs MTD) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MTD)Clutch Assembly Replacement (6.6L/7.2L w/RPOs MZE, MPK) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MZE, MPK)Clutch Assembly Replacement (6.6L/7.2L w/RPOs MWM) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MWM)Clutch Assembly Replacement (8.1L w/ RPOs MPJ) Clutch Assembly Replacement (8.1L w/ RPOs MPJ) in Clutch.
5. Remove the engine flywheel bolts.
6. Remove the engine flywheel.
7. Clean and inspect the engine flywheel. Refer to Engine Flywheel Cleaning and Inspection (AT) Engine Flywheel Cleaning and Inspection (MT) in Engine Mechanical - 8.1L Unit Repair.

Installation Procedure




1. If equipped with a manual transmission, Install the engine flywheel.





Important: Make sure the flywheel is installed correctly. "Engine Side" is stamped on the flywheel to aid with installation.


2. If equipped with a automatic transmission, Install the engine flywheel.
Notice: Refer to Fastener Notice in Cautions and Notices.

3. Install the engine flywheel bolts.

1. Tighten the engine flywheel bolts a first pass to 80 Nm (59 lb ft).
2. Tighten the engine flywheel bolts a final pass to 100 Nm (74 lb ft).

4. If equipped with a manual transmission, install the clutch. Refer to Clutch Assembly Replacement (6.6L/7.2L w/RPOs MTD) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MTD)Clutch Assembly Replacement (6.6L/7.2L w/RPOs MZE, MPK) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MZE, MPK)Clutch Assembly Replacement (6.6L/7.2L w/RPOs MWM) Clutch Assembly Replacement (6.6L/7.2L w/RPOs MWM)Clutch Assembly Replacement (8.1L w/ RPOs MPJ) Clutch Assembly Replacement (8.1L w/ RPOs MPJ) in Clutch.
5. If equipped with a automatic transmission, install the transmission. Refer to Transmission Replacement Service and Repair in Automatic Transmission - Allison.