How do you diagnose a bent connecting rod in a engine?

To diagnose a bent connecting rod in an engine, you can start by performing a compression test or a leak-down test to check for irregularities in cylinder pressure. Additionally, listen for unusual noises, such as knocking or tapping sounds, during engine operation. Visual inspection of the engine components, especially the connecting rods and pistons, can reveal physical distortions. If symptoms persist, further disassembly may be necessary to confirm the diagnosis.