How Long Can You Drive with a Slightly Bent Engine Connecting Rod?
2 Answers
It is best to replace a bent engine connecting rod as soon as possible to avoid affecting the engine's power. Causes of a Bent Engine Connecting Rod: A bent connecting rod in a car engine may occur due to water entering the engine. Water in the cylinder can accumulate on top of the piston, reducing the effective volume of the combustion chamber and increasing compression resistance. This, in turn, increases the pressure transmitted from the piston to the connecting rod, leading to bending. Other causes include abnormal engine fuel injection systems, such as continuous fuel injection from one cylinder's injector, or poor engine lubrication, which can cause the connecting rod and crankshaft to seize, resulting in a bent connecting rod. Function of the Engine Connecting Rod: The connecting rod transmits the significant pressure from the piston to the crankshaft, enabling the crankshaft to perform circular motion. The connecting rod consists of three parts: the small end, the rod body, and the big end. The small end is integrated with the rod and contains a bronze bushing in its hole, connecting to the piston via the piston pin. The rod body has an I-shaped cross-section, which reduces weight while ensuring strength and stiffness, preventing distortion under pressure.
As a mechanical repair technician, I've seen many such cases. A slightly bent engine connecting rod is no small matter – even a minor bend can cause increased engine vibration. Over time, this may lead to piston slap, crankshaft deformation, or even fracture and seizure. Continuing to drive poses rapidly escalating risks after just a few dozen kilometers. At high speeds, sudden engine failure could have severe consequences. I recommend stopping immediately for inspection, preferably at a professional repair shop using flaw detection equipment. Don't try to save on towing fees – it's not worth risking doubled repair costs or endangering yourself and others. Regular maintenance and checking for engine abnormalities are key preventive measures.
