I have a International b434 that I am restoring and I have come to the time to for it to be fired up. but for some reason I can get diesel to the pump but not to the injectors it just will not go to them for some reason it ran a year ago when I Parked it up for restoration but now it won’t go I changed the lift pump and two diesel pipes and have bleeded the air out but it will not go to the injectors so if you could help me that would be very appreciated thanks