Main Bearing Shells, Used And Reworked Crankshafts, Allocating

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2009 Audi S5, and 2008 Audi S5. 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 Main Crankshaft Journals Must Be Measured To Allocate The Appropriate Bearing Shells.
Crankshaft Dimensions. Refer To CRANKSHAFT DIMENSIONS .
Thicker Oversized 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
G	=	Yellow
B	=	Blue

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

Crankshaft Bearing Journal Diameter	Color Identification of Bearing Shells for Guide Frame
Dimensions in mm	Red	Yellow	Blue
Basic dimension 65.000	64.978 to 64.972	64.972 to 64.965	64.965 to 64.958
Repair stage 64.750 ¹⁾	64.728 to 64.722	64.722 to 64.715	64.715 to 64.708
¹⁾ The Same Color Marking Applies To The Thicker Oversized Bearing For Reworked Crankshafts As For A New Crankshaft Despite The Greater Bearing Thickness.