If fuel supply to the injection pump is OK, it may be a sticking metering valve, or sticking plungers. Idle speed should be 800 RPM, if lower set it back up and see if that helps. With the engine at 2000 RPM or more, and the throttle brought back to idle quickly does the engine die or under run idle speed, then come back up a bit? If so that's the metering valve sticking. More common is the retainer ring is breaking apart inside, then when housing pressure rises equal to transfer pressure the plungers no longer move during the charging cycle, and fuel delivery stops. Wait awhile and it will start up again. I just repaired an IH 856 pump for the same problem.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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