The connecting rod, also called the "con rod," is part of the piston engine that connects the piston to the crankshaft. It transmits the reasoning that the piston is doing work down to the crankshaft, helping to convert the reciprocating motion of the piston into rotation of the crankshaft.

There are three main reasons. Water in the engine cylinder (combustion chamber) causes the engine connecting rod to break. Abnormal engine injection system caused the connecting rod to break. Connecting rod and crankshaft locked resulting in engine connecting rod fracture.

Of course not. A broken conrod not only degrades the engine's performance but also affects other parts in the engine's operation, causing more serious problems and even making the car unable to drive.

There are four main reasons. First, the piston ring opening clearance is too small, working at high temperature after expansion stuck in the cylinder. Second, working for a long time under high temperature and heavy load, the piston is severely impacted or the coolant is insufficient, resulting in engine overheating and reducing the mechanical strength of the piston. Third, the piston was defective in manufacture. Fourth, serious damage to the piston pin ring or piston cylinder ring, if not eliminated in time, may also cause abnormal damage to the piston.

The piston pin connects the connecting rod to the piston. The piston pin is connected to the small head part of the connecting rod by the connecting rod bolt. This helps the piston and connecting rod to work closely together.