When you look in it's a rod with adjusting bolt and nut, could be threads with nuts can't remember, can just see part of rod. that is the rack. Fuel pressure gauge just tells the primary pump on rear of pump is passing good pressure to injection pump. Two types of primary pumps were used on a 400. Early 400 used 3 lines to pump at rear of injection pump and also contained a scavaging pump. other ones had two lines. With engine running on gas remove pin from lever on side of pump and pull back lever and open bleed on injectors. If no fuel pressure there I would suspect the rack could be stuck, or in the plunger. Also depends what was done before starting. Was fuel added? was fuel low or drained, or fuel bad? If air managed to get in the system a bleed of air from filters and all may need done to remove air.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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