I made a speed control and am testing it out in this video. The injector pump seems to be a bit finicky, as sometimes the engine speeds up or slows down with the injector pump rack being held in one position.
i just watched your video on the JD400 backhoe rebuild. Great stuff any chance you have a line on the technical manual for that machine? I'm looking at buying a 1970 here that needs a rebuild and am looking for the manual.
No such luck. I did find an operator's manual on JD's website that was downloadable but no tech manual. And it looks like JD did a website update since the last time I visited it that seems to be worse than before, unless I managed to click into the wrong area.