How to disassemble the Cummins M11 series engine flywheel and flywheel housing

 (1) Flywheel Removal ① Install two M10-1.50X40 bolts at positions 1 and 2 as shown in Figure 2-91. After removing the bolts, install two guide pins. For engines equipped with a rear engine power take-off unit (REPTO), the crankshaft gear should be supported by two guide pins before removing the crankshaft rear oil seal.

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Figure 2-90 Remove the front oil collection tank suction pipe

 

② The specifications of the clutch pressure plate bolt holes may be 3/8-16, 7/16-14, or 1/2-13. Before installing the T-handles, the specifications of the pressure plate mounting bolts should be determined to avoid damaging the flywheel. Install the two T-handles onto the flywheel and remove the 7 bolts on the flywheel, as shown in Figure 2-92. 

 ③ Use nylon straps and a crane to remove the flywheel, as shown in Figure 2-93. Before lifting the flywheel, alternately tighten bolts 1 and 2 to loosen it. 

 ④ Remove the two bolts and the guide pin, as shown in Figure 2-94.

 

 

Figure 2-91 shows the installation of bolts 1 and 2, and the removal of bolt 3. (1, 2, 3—bolts)

 

 

 Figure 2-92 Installing the T-handle, removing 7 bolts 4 and 5 – T-handle

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Figure 2-93 Removing the flywheel using a crane - Bolts 1 and 2

 

 Figure 2-94 Remove bolts and guide pins

 

5 Remove the 12 bolts, pressure ring, and crankshaft rear oil seal, as shown in Figure 2-95.

  (2) Disassembly of the flywheel housing ① Remove the bolts and the two engine rear brackets, see Figure 2-96.

 

Figure 2-95 Removing the crankshaft rear oil seal 1—Pressure ring 2—Dust seal 3—Oil seal 4—Sealing gasket

 

 Figure 2-96 Remove the flywheel housing bolts and rear bracket 1, 2 bolts

 ② Remove the 12 bolts and flywheel housing, see Figure 2-97.