(quoted from post at 07:16:56 08/14/23)
I've fought fuel issues on my two Ford 3600's and Ford 4600 over the last 10 years since I acquired them. This era Ford tractor with the CAV pump, it seems like you really need to work the kinks out (usually from years of neglect or previous owner issues) and once that's done they do fine. Mine are pretty much trouble free now. One Caveat, if you are parking for an extended period of time, make sure you treat the diesel in the tank, or better yet crank the thing over every couple weeks and let it run. My last issue was had a tractor sit over the winter and gummed up the injector pump. Just bit the bullet and sent it out to be rebuilt. I forget who did it but found them here on this forum, did a great job.
Now to your problem, I have found following the standard bleeding checklist is the best first step. And if you are a no-start, no fuel at injectors I would start with making sure fuel flow is good from the tank, i think you already did that. Something I overlooked before though, was to fill the tank up. It provides more feed pressure. believe it or not I have needed that to get a tractor cranking several times.
Once you know you have good flow out, check everything else. Bleeder at filter (done), flow to pump, bleeder at pump, cracked injectors/flow.
Did you check the pump inlet screen? I never had an issue there, but i know if you look on this forum that being blocked or plugged has been an issue for others. Your description of no fuel spitting out of the pump bleeder makes me wonder if it is restricted.
Or did you park the tractor with the fuel shutoff in the off position? It can freeze the pump internally in the fuel cutoff position. I have done that before too, and you can crack the top of the pump off and free it up. No fuel from pump bleeder may be a sign of that too.
Anyway, I am no expert, but i bet i had to bleed my tractors and fix fuel/pump issues a couple dozen times of the years.
Now with everything checked out, cleaned up, rebuilt, new filters, new battery, and starter, they crank up all the time, every time!