Allocation of Main Bearing Shells For Used and Reworked Crankshafts

Allocation of main bearing shells for used and reworked crankshafts





Allocation of crankshaft bearing shells for cylinder block
^ Bearing shells are allocated to cylinder block corresponding to color markings stamped into cylinder block.
^ For used and reworked crankshafts, the main crankshaft journals must be measured in order to allocate matching bearing shells.
^ Basic dimension of main crankshaft journals = 65 mm dia.
^ Repair stage of main crankshaft journals = 64.75 mm dia.
^ Thicker over-sized bearing shells are available for reworked crankshafts. These have the same color markings as the original-size bearing shells.





Allocation of crankshaft bearing shells for guide frame
^ For used and reworked crankshafts, the main crankshaft journals must be measured in order to allocate the matching bearing shells.
^ Any other markings on the crankshaft are invalid when reworking crankshafts.
^ Allocate bearing shells to determined diameter of main crankshaft journals according to the following table.