KS ring sets are important components for rebuilding engines. For the intermediate overhauling of engines with liners, we recommend checking whether the pistons are satisfactory for continued operation and replacing the piston rings and cylinder liners. This will ensure good running in of the piston rings with the contact surface of the cylinder liner.
In general, we differentiate between compression rings, scraper rings and oil control rings. All of them have the primary function of sealing the combustion chamber against the crankcase.
the compression rings prevent leakage of combustion gases from the combustion chamber into the crankcase.
scraper rings combine the function of the compression rings and the oil control rings, I. E. They seal combustion gases from the crank case as well as scraping surplus oil off the cylinder wall.