Cylinder Block Assembly: Service and Repair

Main Bearing Shells, New Crankshafts, Allocating

Allocation of Crankshaft Bearing Shells for Cylinder Block





• Bearing shells with the correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.

• Allocation of bearing shells to cylinder block is marked by one letter each at front left on cylinder block (can be read from outside) as shown in the illustration.






• In addition, the letters are also stamped on the guide frame.

Allocation of Crankshaft Bearing Shells for Guide Frame - Crankshaft Manufactured by Alfing





• Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.

• Allocation of bearing shells to guide frame is marked by one colored dot each on crankshaft counterweight as shown in the illustration.

• Crankshafts manufactured by Alfing have no manufacturer's identification.






Allocation of Crankshaft Bearing Shells for Guide Frame - Crankshaft Manufactured by Weber





• Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on sides of the bearing shells serve for identifying bearing shell thickness.

• Allocation of bearing shells to guide frame is marked by one colored dot each on front crankshaft counterweight as shown in the illustration. The "X" marks the end of the letter series and stand next to color identification for bearing 1 belt pulley side.

• Crankshafts manufactured by Weber have a manufacturer's identification - A - on front crankshaft counterweight.

• The letter series begins at left with bearing 5 -flywheel side-.