Allocation of main bearing shells for new crankshafts
WARNING: This page is about a different car, the 2008 Audi RS 4 and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.
Allocation of crankshaft bearing shells for cylinder block
- Bearing shells with correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
- Allocation of bearing shells to cylinder block is marked by one letter each at front left on cylinder block (can be read from outside) as shown in the illustration.
| Letter on cylinder block | Color of bearing | |
|---|---|---|
| R | = | red |
| G | = | yellow |
| B | = | Blue |
NOTE:
- In addition, the letters are also stamped on the guide frame.
Allocation of crankshaft bearing shells for guide frame - Version I
- Bearing shells with correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
- Allocation of bearing shells to guide frame is marked by one colored dot each on crankshaft counterweight as shown in the illustration.
| Colored dot on crankshaft | Color of bearing |
|---|---|
| red | red |
| yellow | yellow |
| Blue | Blue |
Allocation of crankshaft bearing shells for guide frame - Version II
- Bearing shells with correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
- Allocation of bearing shells to guide frame is marked by one colored dot each on front crankshaft counterweight as shown in the illustration. The "X" marks the end of the letter series and stand next to color identification for bearing 1, belt pulley side.
NOTE:
- Ignore - A -.
| Letter on crankshaft | Color of bearing | |
|---|---|---|
| R | = | red |
| G | = | yellow |
| B | = | Blue |