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 {HEAD ~ 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 
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 { HEAD ~ 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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