What Causes Cylinder Block Cracking in BMW 320 Engine?
1 Answers
BMW 320 engine cylinder block cracking may occur due to the following reasons: Water ingress into engine cylinders: When driving through flooded roads, the engine may draw water into its cylinders. The initial water entering the cylinder quickly forms steam due to the high temperature, preventing the formation of combustible mixture in that cylinder. Abnormal fuel injection system: This condition typically occurs when one cylinder's fuel injector continuously sprays fuel. Preceding symptoms often include difficult starting, rough idling, black smoke from exhaust, and reduced power output. Defective connecting rod: Such cases can usually be confirmed through various testing methods including chemical composition analysis of connecting rod material, hardness testing, metallographic examination, and scanning electron microscope fracture analysis.