Cylinder Block Assembly: Description and Operation

Main Bearing Shells, Used and Reworked Crankshafts, Allocating

Allocation of Crankshaft Bearing Shells for Cylinder Block





• Bearing shells are allocated to cylinder block corresponding to color markings stamped into cylinder block.

• With used and reworked crankshafts, the main crankshaft journals must be measured to allocate the appropriate bearing shells.

• Crankshaft dimensions, refer to => [ Crankshaft Dimensions ] [1][2]Crankshaft, Engine.

• Thicker over-sized bearing shells are available for a reworked crankshaft. These have the same color markings as the original-size bearing shells.






Allocation of Crankshaft Bearing Shells for Guide Frame

• With used and reworked crankshafts, the main crankshaft journals must be measured to allocate the appropriate bearing shells.

• Any other markings on the crankshaft are invalid when reworking a crankshaft.

• Allocate bearing shells to the diameter of the main crankshaft pivot pins using the following table