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Do you have a "Fastenal" store nearby ? I do believe they can get them.

Yes. Sometimes it is such a pain in the A$$ to try and get your concept across just using words. A picture is sometimes so much better.

Due to the fact that the piston does not want to stay at top dead center on the cam. It rotates the shaft causing the timing marks to move slightly. Remember the injection pump shaft does not make a "physical connection" to the engine. It is turned by the advance system weights. So it can and...

Actually the red mark will align actually where it is suppose to. It is the spring pushing on the piston that causes the red mark to "fly" by the other mark. If you where to leave out the piston spring you would see what I mean. Of course it would not work if you did that :wink: .

So your saying that with the center plug on the Hydraulic Head removed, the valve is moving up and down. Is it spinning too ? You also took out the twelve point plug on the side of the Hydraulic Head, and fuel came out under pressure. Correct ? But you have no fuel coming out the injection...