Disassembling and Assembling Bearing Housing With Crankshaft

Disassembling and assembling bearing housing with crankshaft








Tools

Caution:
Danger to engine if connecting-rod bearing cap and connecting rod are mixed up!
- The connecting-rod bearing caps must always remain allocated to the respective connecting rods and must never be interchanged.

Recommendation: After disassembly, immediately re-join the connecting-rod bearing cap and connecting rod or mark them on the sides with an electric scribing tool (e.g. with the cylinder designation). Never mark these parts with sharp objects such as prick punches or number embossing tools.

Danger:
Bearing housings without connecting-rod bearing twist locks should not be installed.

Assembly instructions





Tightening sequence for thrust-bearing screws
Screws, bearing housing





Initial tightening: 25 Nm (19 ft. lbs.)
Final tightening: 1 x 90° turn





1. Use special tool, assembly fixture 9607, for disassembly and assembly of the bearing housing, crankshaft and connecting rods of cylinder bank 4- 6.
Special tool 9607





2. Fasten bearing housing on the assembly fixture with two M10 x 20 hexagon-head bolts. Tighten hexagon-head bolts only slightly.





3. Additionally fasten the assembly fixture on the workbench using C-clamps.





4. Place and fasten the bearing housing half of cylinder bank 4 - 6 on the special tool for assembly.





Arrangement of the main thrust bearings on the bearing housing.
Main on the belt pulley side
thrust
bearing
1
Main on the flywheel side
thrust
bearing
7





Arrangement of the connecting-rod bearings in the bearing housing.
Connecting rod on the belt pulley side
bearing
of
cylinder
1
Connecting-rod on the flywheel side
bearing
of
cylinder
6