Water in the cylinder (combustion chamber) causes the Bare Engine to bend or break. When the vehicle is driving on a road with water on the road, the Bare Engine will suck water into the cylinder.

The water that first enters the cylinder quickly forms hydrated gas under the action of the high temperature of the cylinder body, making it impossible for the cylinder to form a combustible mixed gas.

As the amount of water inflow increases, water will accumulate on the top of the piston, reducing the effective volume of the combustion chamber, increasing the compression resistance, and increasing the pressure transmitted to the connecting rod by the piston.

When the water accumulation reaches a certain level, the compression stroke actually becomes a compression of the water, and the pressure on the connecting rod increases sharply, and even bends and deforms until it breaks, or even breaks the MG Roewe Maxus Engine cylinder body.

Not all vehicles will break the connecting rod immediately after the Bare Engine enters the water, because the amount of water in the Bare Engine cylinder body and the speed of the Bare Engine determine the pressure on the connecting rod.