The lower screw on the advance plug is NOT a bleed screw, just a bolt to plug the advance gauge hole. The upper screw on the top cover can be bled after engine is running. The CRITICAL bleed screw is next to the pump name tag, there MUST be no air at that screw. If the silt got into the injection pump hydraulic head, it MAY have stuck the metering valve and/or the rotor plungers, and a complete tear down and cleaning is the only hope if pump is to work again. That's IF the rotor and head sleeve bore are not badly damaged already.
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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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