Most of us consider piston rings little more than a necessary evil. That's probably because grinding rings is a time-consuming chore. And who hasn't accidently ground a gap too large and wasted both ...

No experienced engine builder would intentionally bolt a cylinder head to an engine block without installing a gasket between the block and cylinder head. The gasket seals the block-deck surface to ...

Although split-ring seals are most often used for reciprocating motion, they are sometimes applied to hydraulic swivel joints and transmissions. Although split-ring seals are most often used for ...