All parts › BMW M4 CSL › S58 engine › Crankshaft › Main bearings
Main bearings
Part of Crankshaft · about $210 to replace
What it is
Seven split plain bearings.
What it does
Support the crank in the block on an oil film.
How it fails
Copper showing through means replace.
| Material | Tri-metal aluminium/tin on steel backing |
|---|---|
| Spec | Clearance 0.03–0.05 mm |