Radial clearance of connecting rod, checking
WARNING: This page is about a different car, the 2006 Audi A8, 2005 Audi A8, and 2004 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.
Special tools, testers and auxiliary items required
- Plastigage
Test sequence
- Remove connecting rod bearing cap. Clean the bearing cap and journal.
- Place Plastigage over entire width of bearing journal or into bearing shells.
- Install connecting rod bearing cap and tighten to 30 Nm. Do not turn crankshaft.
- Reinstall connecting rod cover.
- Compare width of Plastigage with calibrated scale.
| New clearance | Wear limit |
|---|---|
| 0.015 to 0.062 mm | 0.12 mm |
- Always replace connecting rod bolts.