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 - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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