Cylinder diesel engine is one of the major pieces of vulnerability. Because of the compressed air and fuel combustion acting, in gas cylinder head, and other parts of the formation of the space, so the cylinder diesel engine technology and the natural state of the economy, is closely related to dynamic performance.
When the cylinder liner wear and spend large oval, the deterioration of gas tightness, and after the compression pressure and temperature drop, so that the power of the diesel engine to reduce fuel consumption rate of increase in start-up difficulties. The cylinder liner wear is also a large number of oil went to the combustion chamber, smoke, carbon deposition of coke in the country, the loss of flexibility and piston rings, engine overheating. In addition, the diesel engine while at work piston and cylinder of the percussion sound is also increasing. These factors, in turn, speed up the cylinder liner wear. Therefore, the engine overhaul life, to a large extent by the cylinder liner wear and tear of the decision. Typically, the cylinder of the maximum allowable amount of wear and tear, its general diameter of 0.4 to 0.8%.