Improvement of wearing-in effiency of cylinder-piston parts of engines during technical service

The problem of provision with quality of rubbing surfaces of cylinder-piston groups of tractor, combine, automobile engines, operating in agriculture are considered in flus article. Possible disrepaiv caused by wearing of cylinder-piston group parts are pointed out.Litcratuse survey and the analyses of devices characteristics of clad metallic polymer contained and ceramic metal compounds with the aim to define the possibilities of their usage for wearingin of cylinderpiston groups of engines are listed.Method of stand and operating tests of repairing compounds is also expounded. Expediency of metallic ceramic compound usage for wearing-in of cylinder piston droups of engines has based.