Allocation of main bearing shells for new crankshaft — AUDI

Allocation of main bearing shells for new crankshaft
Allocation of crankshaft bearing shells for cylinder block
Bearing shells of the correct thickness are matched to the bearings in the cylinder block at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness.
The allocation of the bearing shells to the cylinder block is identified by a code letter next to the relevant bearing.
Letter on cylinder block
Colour coding of bearing
R
=
Red
G
=
Yellow
B
=
Blue
Allocation of crankshaft bearing shells for retaining frame - version 1
Bearing shells of the correct thickness are matched to the bearings in the retaining frame at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness.
The allocation of the bearing shells on the retaining frame is indicated by stamped markings or coloured dots on the crankshaft webs, as shown in illustration.
Crankshaft with
Colour coding of bearing
Stamped marking
Coloured dot
R
Red
=
Red
G
Yellow
=
Yellow
B
Blue
=
Blue
Allocation of crankshaft bearing shells for retaining frame - version 2
Bearing shells of the correct thickness are matched to the bearings in the retaining frame at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness.
The allocation of the bearing shells to the retaining frame is indicated by letters on the front crankshaft web, as shown in illustration. The
“X”
indicates the end of the row of letters and is next to the colour coding for bearing
“1”
(pulley end).
Note
The row of letters begins on the left with bearing
“5”
(gearbox end).
Disregard
item A
.
Letter on crankshaft
Colour coding of bearing
R
=
Red
G
=
Yellow
B
=
Blue
Allocation of crankshaft bearing shells for retaining frame - version 3
Bearing shells of the correct thickness are matched to the bearings in the retaining frame at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness.
The allocation of the bearing shells to the retaining frame is indicated by letters on the crankshaft flange (pulley end), as shown in the illustration.
Note
The row of letters begins on the left with bearing
“5”
(gearbox end).
Letter on crankshaft
Colour coding of bearing
R
=
Red
G
=
Yellow
B
=
Blue