What are the symptoms of a broken car balance shaft?

[LeHaven]

After the car balance shaft is broken, the engine vibration will significantly increase, affecting the comfort of driving. The balance shaft is an important component of heavy-duty vehicles, and its main function is to transmit all forces and moments between the wheels and the body. Balance shafts can be divided into dual balance shaft and single balance shaft types, with specific details as follows: Dual balance shaft: This type of balance shaft uses chain drive to rotate two balance shafts, which is more costly and occupies more space, commonly used in large-displacement motorcycles. One of the balance shafts rotates at the same speed as the engine, eliminating vibrations at the same frequency as the engine; the other balance shaft rotates at twice the engine speed, eliminating the second-order vibrations of the engine. Single balance shaft: This type of balance shaft operates using gear drive, with a simpler structure and relatively smaller space occupation, widely used in single-cylinder and small-displacement engines.