New fuel filters, lift pump, getting fuel and still wont

Hey yall , long time lurker, first time poster . I have learned so much from this incredible forum so thank yall.
As a back story i was given a 2001 century 2028 tractor . It was so badly abused and mistreated that the folks simply told me to come load it up. It only had 320 hours on it when i got it . But after being drove through a pond and flooded for Lord knows how long i finally went all through the little tractor and got all the seals on the rams changed . Went through and cleaned the motor inside and out , also had to physically scoop hand fulls of gunk out of the hydro reservoir it was horrible. But all in all i got it running like a champ and it has been a good strong tractor and having done all the work myself i learned alot! But one thing that i had to do that was not ideal was i deleted a tone of electrical that was what was once the wiring harness . So no lights , no fuel gauge no seat safety switch and no fuel shut off solenoid. And i rewired new glow plugs on its own new circuit with a toggle switch. It has a front end loader and has been running great . So i borrowed a small 4 foot tiller and when i worked it at the recommended 540 rpm and tilled up a 1/4 acre it started acting fuel starved . So i changed all the fuel filters and even installed a new lift pump and installed it closer to the fuel tanks like within 12 inches of the tank outlets . I drained the tsnks. And blew air back into the tanks and this thing still wont run . Sometimes for 5 minuted and longer if i open the fuel bleed screw. I have fuel gushing out of the bleed screw and the filters are full to the top with fuel. It was running fine before i used the tiller . I just can figure this out. I wonder if there is a electrical component thst is still doing its job partially? Any help would be great and i look forward to hearing from all of you! Ps i also loosened the fuel cap and completely removed it that affected nothing . Its so wild that this only happened after working the pto. It has been running fine with the FEL for a year .

I know nothing about this tractor but I would check for
fuel at the injectors and if it has an electric shut down
make sure that is not causing the no start.

I will propose that the tractor has not been put under a continuous load for hours sense putting it back together. There may have been damage to the injector pump that some harder work caused to show up. Jim

I once had a small beetle-like bug get into my fuel tank, probably from the fuel pump nozzle. It lodged itself inside the rigid fuel line just before the lift pump. It allowed sufficient fuel to enter the lift pump, filters and injection pump that the tractor (1989 Deere 2355N) would idle all day, and even drive to the vineyard with a loaded sprayer. Once the PTO was engaged, it starved for fuel about half way down a row. Never quit, and would idle down just fine. Under PTO load, not enough fuel, and it would throttle itself back.

I recommend you install new fuel lines, at least temporary new hoses, starting from the tank and work your way to the injector pump. Maybe even use a small lawnmower tank for supply at first, to rule out some debris in your fuel tank/pickup.

Good luck, let us know what's up!

Do you have good fuel flow from the tank to injection
pump? When you say you moved the pump closer Id
assume you put an electric pump on ? Also If it has an
electric fuel solenoid Is getting a good power supply

There is probably a fine screen in the
injector pump that is plugged up.

I would put a fuel line in from the lift pump inlet to a bucket of fresh fuel and see if it runs well. If it does, it's from there back to
the tank. You need to cut your diagnosis in half.

What ASEguy posted.

that tractor may have an electric selenoid that turns the pump on or off. if it doesnt wrk there is a relay under the dash in the upper left side that
is prone to failure. you can take the selenoid out of the pump and push the lever forward and it should run.

My JD 1145 has dual tanks with separate suction and return lines going through a splitter valve.
Last spring it would run for 10 minutes and run out of fuel. It would do exactly the same thing on
both tanks so I assumed the problem was after the splitter (how wrong can you be grasshopper).
After some new lines and a lift pump, I found the tiny screen on the suction lines in both tanks
were plugged. After cleaning minimal debris out of each tank and building a better mouse trap, it has been
fine.

(quoted from post at 01:36:54 04/03/23) There is probably a fine screen in the
injector pump that is plugged up.

Click to expand...

The injector pump has a screen on it !? That would be very inif it does. Its located inside the eng8ne block on this kukje engine . I have had it out once to inspect it but its been so long i cant remember what it looks like thank you all gor the imput yall are awesome! I will try what everyone suggested this weekend so stay tuned

Thats a good point. And i did forget to mention that i took a fresh hose and hooked it strait ro the lift pump snd into a clean fresh diesel can . Im getting a good solid stream of fuel out of that set up but when hooked back up it still does the same thing . I guess i need to drop the fuel tanks completely or run my bore scope down in there and look around . And just get about 8 foot of fuel hose and change every hose so i can eliminate that . Its just crazy im getting such good flow up to the bleed off valve . I wondrr if one of the high pressure lines is clogged. I do get diesel when i crack the injectors but its foamy or bubbly not sure if thats normal. But prior it did run with rhe bubbly diesel normaly . Hmmmm

You just verified it has air in the system. Not gonna run
yet.

Post a picture of the sides of that engine and the fuel routing to the pump. Plus if you remove injection lines they should be shooting fuel out under pressure for about 3 ft. Plus check your return line to make sure its not plugged if its plugged tractor will not run. And one injector line plugged , no thats not it. Why cant you hook up an electric pump before the filters to see if that gets its bled.

(quoted from post at 19:50:07 04/03/23) Post a picture of the sides of that engine and the fuel routing to the pump. Plus if you remove injection lines they should be shooting fuel out under pressure for about 3 ft. Plus check your return line to make sure its not plugged if its plugged tractor will not run. And one injector line plugged , no thats not it. Why cant you hook up an electric pump before the filters to see if that gets its bled.

Click to expand...

Ok yall so last two days i have completely removed the fuel tanks and cleaned them out. They werent really bad at all. So then I installed new hoses and made sure there were as little bends as possible and the new edelbrock diesel lift pump is within 12 inches of the tanks and below the fuel outlets for the tanks . All lines are free and clear of obstructions. When i put everything back together i got it to run as normal .(normal for Frankentractor) anyways. So heres where im at . Should i hook the little tiller back up and see if it does it again ? Im pretty nervous to try it ! I talked to a local shop that told me to send them some pics of the fuel pump and see if they can get a rebuilf kit for it or somthing. Again this thing has had all the safety sensors and switches removed. Not my fault, i was just trying to make the best of the situation long story . But basically this is a rat tractor . If they rebuild or replace the fuel pump will it have to be timed to the motor ? Thats above my pay grade . Also i wonder if when it gets to working temps if one of the injectors is acting up. Normally when i use this tractor its only the front end loader and typically onlh revved up to speed up the bucket movement . By the end of this i should be a friggin expert