Thank you for that info. I will then have to check the high pressure diesel pump. I did give that cav pump a full clean and resealing a few months ago, and it started up nicely afterwards , but then it sat for maybe 2 months before I got the time to try again.
I get diesel from the lower and upper vent screw on the pump when priming the lift pump, but when turning the engine with the starter to bleed the air out of the injectors, I only see about 1 or 2 drips of diesel per second.
As I recall from earlier, the pressure from the upper vent screw and also from the injectors should be higher? Maybe I will check the plunger in the endplate. Maybe it's stuck in a position that doesn't allow enough diesel through. I thought it could not be the stop pin because I just cleaned and resealed the pump a few months ago, and left the tractor with the stop knob pushed all the way in. I was thinking maybe the little spring under the plunger maybe it's broken. I will check! I was almost sure the loss of compression in the lift pump was a sign of a problem, but what you just said makes sence. Thank you!
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