What are the symptoms of a bent engine connecting rod?
1 Answers
If the engine connecting rod is slightly bent or deformed, the engine may fail to start. If it does start, the idle speed will be unstable, with severe shaking accompanied by a noticeable knocking sound. Additionally, professional tools are required for accurate measurement, which should be performed at a repair shop. Below are the common causes of a bent engine connecting rod: Engine cylinder water ingress: As the amount of water increases, it accumulates on top of the piston, reducing the effective volume of the combustion chamber, increasing compression resistance, and raising the pressure transmitted from the piston to the connecting rod. Abnormal engine fuel injection system: This is usually caused by continuous fuel injection from one cylinder's injector. Symptoms often include difficulty starting, unstable idle, black smoke from the exhaust pipe, and reduced power. Connecting rod seizing with the crankshaft: This is typically due to poor engine lubrication and can be diagnosed by inspecting internal engine component wear. Defective connecting rod: This can be confirmed through methods such as chemical composition analysis, hardness testing, metallographic examination, and scanning electron microscope fracture analysis of the connecting rod material.
