Main Bearing Shells, Used And Reworked Crankshafts, Allocating

WARNING: This page is about a different car, the 2015 Audi RS 5, 2014 Audi RS 5, and 2013 Audi RS 5. However, it is still accessible from the selected car via links, so may be relevant.

Allocation of Crankshaft Bearing Shells for Cylinder Block

Fig 1: Allocation Of Crankshaft Bearing Shells For Cylinder Block

Courtesy of AUDI OF AMERICA, LLC

Bearing Shells Are Allocated To Cylinder Block Corresponding To Color Markings Stamped Into Cylinder Block.
With Used And Reworked Crankshafts, The Crankshaft Pivot Pins Must Be Measured To Allocate The Appropriate Bearing Shells.
Crankshaft Dimensions. Refer to CRANKSHAFT DIMENSIONS .
Thicker Over-Sized Bearing Shells Are Available For A Reworked Crankshaft. These Have The Same Color Markings As The Original-Size Bearing Shells.

Letter on Cylinder Block		Color of Bearing
R	=	Red
S	=	Black
G	=	Yellow
U	=	Green
B	=	Blue

Allocation Of Crankshaft Bearing Shells For Guide Frame

With Used And Reworked Crankshafts, The Crankshaft Pivot Pins 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

Crankshaft Bearing Journal Diameter	Color Identification On The Bearing Shells For Bearings 1, 3 And 5 For The Guide Frame
Dimensions in mm	Yellow	Green	Blue
Standard dimension 67.000	66.974 to 66.970	66.969 to 66.964	66.963 to 66.958
Repair stage 66.750 ¹⁾	66.724 to 66.720	66.719 to 66.714	66.713 to 66.708
¹⁾ The Same Color Marking Is Valid For The Thicker Over-Sized Bearing For Reworked Crankshafts As For New Crankshafts Despite The Greater Bearing Thickness.

Crankshaft Bearing Journal Diameter	Color Identification On The Bearing Shells For Bearings 2 And 4 For The Guide Frame
Dimensions in mm	Red	Black	Yellow	Green	Blue
Standard dimension 67.000	66.974 to 66.973	66.973 to 66.970	66.969 to 66.964	66.965 to 66.960	66.961 to 66.958
Repair stage 66.750 ¹⁾	66.724 to 66.723	66.723 to 66.720	66.719 to 66.714	66.715 to 66.710	66.711 to 66.708
¹⁾ The Same Color Marking Applies To The Thicker Over-Sized Bearing For Reworked Crankshafts As For A New Crankshaft Despite The Greater Bearing Thickness.