REGULARITIES OF THE MECHANISM OF VARNISH FORMATION ON THE SURFACE OF PARTS OF INTERNAL COMBUSTION ENGINES

Abstract

Varnish deposits, like carbon deposits, worsen the cooling of parts. The varnish contributes to the burning of piston rings. The combustion of the rings promotes the penetration of oil into the combustion chamber and increases its consumption. Burnt rings reduce engine compression, this leads to a breakthrough of gases into the crankcase and a decrease in engine power, and also causes excessive friction, increased wear and tear of the cylinder mirror, ring breakage, and sometimes jamming of the piston in the cylinder.