Engine bearing oil clearance is an important measurement when evaluating the internal condition of a replacement engine. It refers to the small space between a bearing surface and the rotating crankshaft journal, allowing a controlled oil film to support smooth movement and reduce metal-to-metal contact. When purchasing Used Engines, understanding bearing clearance can help buyers ide... https://carenginepart.com/how-engine-bearing-oil-clearance-reveals-internal-wear-and-lubrication-risks-in-2026/