Bukh DV36/48 Workshop Manual - page 91
L3
009W2329-R01
Dismounting of crankshaft
1. Remove the cylinder head with manifold (see section C page 4).
2. Dismount the flywheel (see section D page 3).
3. Dismount the gear (see section R page 3).
4. Dismount the rear end cover (see section G page 3).
5. Turn the engine upside down.
6. Remove the oil sump.
7. Dismount the pistons and the connecting rods (see section IJ page 3).
8. Dismount the front end cover (see section E page 3).
9. Remove the bearing caps and lift out the crank.
The mounting of the crankshaft takes place in reverse order, the bearing caps being fastened
at a torque of 12 kpm (86.8 ft.lbf). Further make sure that the two thrust collars are correctly
fitted in accordance with the drawing below.
Change of main bearings
Proceed in the same way as when dismounting the crankshaft.
As will appear from the drawing below, the caps are stamped in proportion to corresponding
part of the engine block. Observe this marking when disassembling.