Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Gap, Piston Ring
The distance between the ends of the piston ring when sited in the cylinder bore. The gap is necessary in order to ensure that the ends do not butt due to expansion at a higher temperature which could cause seizure and breakage of the ring. An excessive gap causes gas leakage.
