{HEAD ~ A circular cylindrical elongate check} is provided having a guide portion disposed at a first check end within a guide wall defining the injector bore, {TAIL ~ a tip portion} disposed at a second check end within a tip wall defining the injector bore and a sealing portion between the guide portion and the tip portion and disposed adjacent a valve seat defining the injector bore 
{ HEAD ~ A circular cylindrical elongate check } is provided having a guide portion disposed at a first check end within a guide wall defining the injector bore , { TAIL ~ a tip portion } disposed at a second check end within a tip wall defining the injector bore and a sealing portion between the guide portion and the tip portion and disposed adjacent a valve seat defining the injector bore
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