Engine spare parts
The cylinder body is mainly made of gray cast iron and vermicular graphite cast iron with use of strict technical control in the production process to make sure deformation on the upper plane of the cylinder body is no more than 0.05mm within every 50mm. For cast iron cylinder body, error of six-cylinder engine throughout its total length shall not exceed 0.30mm and that of four-cylinder engine not exceed 0.20mm, and for aluminum alloy cylinder body, error of six-cylinder engine shall not exceed 0.50mm and that of four-cylinder engine not exceed 0.30mm. Cooling spray shot test is carried out to further improve its reliability. Reinforcing rib built inside the cylinder body guarantees its strength and properly arranged coolant way and lubricant way ensures proper cooling and lubrication.