Piston
101piston charging pump — [1] The function of the piston of the two stroke engine to pre compress the fresh charge induced into the crankcase. [2] A separate piston used in earlier two stroke engine designs to provide a supercharging effect …
102piston collapse — A reduction in the diameter of the piston skirt caused by heat and constant impact stresses. Also see collapsed piston …
103piston damper — A small damper piston in an SU or Stromberg carburetor which reduces the movement of the large air piston in the venturi …
104piston displacement — [1] Amount (volume) of air displaced by a piston when moved through the full length of its stroke. [2] Volume obtained by multiplying area of cylinder bore by length of piston stroke. [3] Also see displacement …
105piston extension screw — A stroke limiting screw between the primary piston and secondary piston stop …
106piston lifter — A pin in the base of the piston chamber in an SU or Stromberg carburetor, used to check the strength of the mixture and the free movement of the piston …
107piston pin — A steel pin that is passed through the piston, it is used as a base upon which to fasten the upper end of the connecting rod. It is round and may be hollow. Also called wrist pin or gudgeon pin. See floating piston pin …
108piston ring groove cleaner — A special automotive tool to remove carbon and varnishes from piston grooves before installing piston rings …
109piston ring pliers — A pliers like special automotive tool used to spread and slip piston rings over a piston for removal and installation …
110piston seizure — A sudden stalling of the engine, caused by the piston becoming stuck in the bore; this is often caused by overheating or lack of lubrication and often leaves severe score marks in the cylinders and on the skirt of the piston …