Engine Cylinder Liner for Toyota 2KD Europe Truck

The working environment of the cylinder liner is very bad, and there are many reasons for wear. Normal wear is usually allowed due to structural reasons, but improper use and maintenance will cause abnormal wear. 1.Wear caused by structural reasons 1) The lubrication condition is not good, so that the upper part of the cylinder liner wear seriously. The upper part of the cylinder liner is adjacent to the combustion chamber, the temperature is very high, and the lubrication condition is very poor. The erosion and dilution of fresh air and unevaporated fuel aggravate the deterioration of the upper condition, so that the cylinder is in a state of dry friction or semi-dry friction, which is the cause of serious wear on the upper cylinder. 2) The upper part is under large pressure, so that the cylinder wear is heavy on the upper and light on the lower. The piston ring is pressed tightly on the cylinder wall under the action of its own elasticity and back pressure…