on a new oil pump install a member local to me had the same problem, ran a minute, stopped, no fire and called me...he had not discovered the broken gear as he knew it was a new pump and could not be the problem....I discovered this right off, (always check rotation) got a new pump...primed the unit and installed, indexed correctly for the distributor corrected the cap wiring and let the big dog eat...Sadly this does happen.....I am not sure if it was lack of initial lube or what else could have attributed to the instant fail on start up. He had to return the pump AS IS for warranty so an investigation was out of the question.