There are three heads available for the Dpa 3 cyl. One has six drilled and tapped ports. Three are plugged. Second is the Roto Diesel version used on small John Deere German built tractors. These heads are hard to come by and priced like wise. The ports are turned 30 degrees from the Ford version. The last is of coarse the Ford style. I learned this the hard way by buying a ford 3 cyl. pump core and putting the head in a John Deere Roto Diesel pump. I built it, tested it, and shipped it off. Then I got a call from the owner saying he couldnt get the lines to fit. So I then had to find the correct head and build him another pump. So now I am smarter, and have Two Ford 3 Cyl. pumps here rebuilt and ready to go if some one needs one,,,, or Two!! Check n see. You may have the JD style head in your housing . They both are clock wise and work the same except port location. Good luck,, Al
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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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