Transmission Interface and Mounting R2.8 CM2220 R101B Page 1-8 Section 1 - Installation by Subsystem Figure 3 - Depth Measurement of Flywheel The face of the flywheel housing (1) is 80 mm [[3.15 in] from the rear face of the block (2). The face of the flywheel (3) is 71 mm [2.8 in] back from the rear face of the block (2), and/or 9 mm [0.3 in] in from the mounting surface of the flywheel housing (1). Flywheel/housing adapters as well as flexplate adaptations for automatic transmissions may be available from aftermarket suppliers.
It is recommended to utilize Specialty Equipment Market Association (SEMA) members, as the R2.8 CM2220 R101B computer aided design (CAD) is available to reputable suppliers through their tech transfer program. In the event that the flywheel has been removed from the crankshaft, the procedure below must be followed to re- install the flywheel to the engine crankshaft. This component or assembly weighs greater than 23 kg [50 lb]. To prevent serious personal injury, be sure to have assistance or use appropriate lifting equipment to lift this component or assembly. WARNING Inspect the rear face of the crankshaft and flywheel mounting flange for cleanliness and raised nicks or burrs.
Install the flywheel on two M12 x 1.25 guide pins (customer-supplied). To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com