Hyundai 23060-2E020 Bearing Pair Set-Connecting Rod

Dirt and foreign particles can enter the engine during assembly, pass through filters or the PCV system, or get into the oil. Metal chips from machining operations and normal engine wear can also be present. Abrasives may remain in engine components after reconditioning if not cleaned properly. These foreign objects can become embedded in the soft bearing material, while larger particles may score or gouge the bearing and journal.