S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Crankshaft Main Bearing: Service and Repair
Main Bearing Shells, Used and Reworked Crankshafts, Allocating
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 ] See: Crankshaft/Specifications.
‹› 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 journals using the following table.