Surface Roughness

In the cylinders oval compartment where it is 90 degrees, it is taken by the transverse and longitudinal dimensions of the surface. It is the difference between the & Since the rings will always come in circular contact with the cylinder surface, the ovality of the cylinder surface makes it difficult to scrape the engine oil into the crankcase. The taper is the difference between the measurements taken from the lower and upper parts by sliding the comparator up and down. In the conic state, the piston gap increases somewhere in the cylinder and the piston is temporarily bent to one side.

Honing

Honing the roughness of the surface resulting from the process; while the engine is famous and it is the most important factor that determines oil consumption. Therefore, the cylinder surface must be smooth enough for the rings to operate without wear. At the same time, there should be oil pockets in the appropriate number, depth and distribution so that the oil scraped by the rings can be retained on the cylinder surface. The rings working on the smooth cylinder surface should be able to press the surface fully, scrape the oil well, and gas leaks to the crankcase should be prevented with increasing compression. . The oil scraped by the rings & must be able to hold in the oil pockets on the surface and a minimum amount of oil should be carried into the combustion chamber.