The piston rings on any engine have three main purposes - to ensure the combustion chamber’s tightness, to clean the cylinder and to leave a very thin layer of oil on its surface in order to reduce ...

What makes piston ring selection and ring endgap so important to engine life and power? What's more, what makes that first engine firing so critical to proper break-in and longevity? Those first few ...

Repeated cycles of searing combustion heat alternating with cool incoming air and fuel, extreme load reversal, thrust forces that slam the pistons into the cylinder wallsits quite amazing that ...