I don't know all the Deutz engines, but isn't F3L the prefix for the 912 engine that has a Bosch injection pump? Sounds like your describing a Deutz that has individual cam operated injection pumps for each cylinder. What is you full F3L _ _ _ model number? What fuel leak did you fix? Did it start for just a moment and then die? Or has it not hit a lick since you repaired fuel leak. What type of shutdown solenoid does it use? Are you certain it's working? Just trying to get all info that's pertinent.