piston ring
21piston ring pliers — A pliers like special automotive tool used to spread and slip piston rings over a piston for removal and installation …
22piston ring side clearance — The space between the sides of the ring and the ring lands …
23piston ring groove — One of the channels into which the piston rings reside …
24piston ring, compression — See compression ring …
25piston ring end gap — The distance left between the ends of the ring when installed in the cylinder …
26piston ring, oil control — See oil control ring …
27piston ring ridge — That portion of the cylinder above the top limit of ring travel. In a worn cylinder, this area is of a smaller diameter than the remainder of the cylinder and will leave a ledge or ridge that must be removed …
28piston ring stop — A pin pressed into the ring grooves of a two stroke engine in order to prevent the rings from rotating, which would allow the open ends to become jammed in the ports …
29molybdenum piston ring — A piston ring with a molybdenum coating …
30piston ring job — Reconditioning the cylinder and installing new rings …