V2003T Fuel Problem

[xtr3me_03]

Need advice from any maintenance savvy gurus out there... Just recently experienced a engine shutdown while operating an attachment utilizing maximum flow. Engine would turn over but not start. Issue on hand was no fuel and collapsed primer bulb. Replaced pickup tube which was faulty culprit and replaced fuel/water separator ( which was full of gel and trash).. Now I am getting fuel to injectors except for #2 in return causing engine to idle rough and blow black smoke upon start-up..I am guessing when the tube failed trash was sucked from fuel/water separator into pump.I removed holders from injector pump and squeezed primer bulb forcing fuel to spill out of top of pump hoping to dislodge any trapped debris. Now I am thinking that the #2 plunger could possibly be stuck. Any advise on removing or freeing up plunger without removing pump assy... or any input for possible fault or corrective action

 

[Bobcatdan]

I don't know of any tricks. I would call your local diesel shop, one that works on injector pumps and see what they see. If there is a problem in the pump, thats where to take it. Something like an injector pump, you want somebody who knows what there are doing. Seems add crap got to the pump. I wonder, did you remove the injection line at the pump and turn the barrel, big no no.

 

[xtr3me_03]

I don't know of any tricks. I would call your local diesel shop, one that works on injector pumps and see what they see. If there is a problem in the pump, thats where to take it. Something like an injector pump, you want somebody who knows what there are doing. Seems add crap got to the pump. I wonder, did you remove the injection line at the pump and turn the barrel, big no no.

Thanks for reply... Yes, I did remove barrels and replaced all o-rings as 2 of them showed signs of deterioration. Actually I removed the pump assembly as I noted the plunger in the #2 port was stuck. I removed a particle of what appeared to be a piece metal or brass. No signs of scoring, burring,etc... So I will be installing later today and give it a shot ( while ensuring speed bar pin is installed correctly to prevent run away engine ) as I am guilty of traveling down that adrenaline spiking journey many years ago . I agree turning the barrels or also referred to as tube /holder could possibly allow air to enter system if left loose. None-the-less they have to be removed to access internal component for inspection. Since I do not have a manual, why do you say the turning of the barrels is a big no-no... By the way, anybody know where any parts for the fuel system components can be ordered on-line as my local Bobcat dealership is too far away to frequent regularly and I always feel as if I am standing in line at a convenience store with lotto customers in front of me and very seldom do they have parts needed on-hand..It is sad when I have to drive 47 miles to purchase fuel washers.. Okay, back on subject... If after installing pump and problem is not corrected I will heed your advice and take the pump to a known good diesel repair shop.

 

[Tazza]

Thanks for reply... Yes, I did remove barrels and replaced all o-rings as 2 of them showed signs of deterioration. Actually I removed the pump assembly as I noted the plunger in the #2 port was stuck. I removed a particle of what appeared to be a piece metal or brass. No signs of scoring, burring,etc... So I will be installing later today and give it a shot ( while ensuring speed bar pin is installed correctly to prevent run away engine ) as I am guilty of traveling down that adrenaline spiking journey many years ago . I agree turning the barrels or also referred to as tube /holder could possibly allow air to enter system if left loose. None-the-less they have to be removed to access internal component for inspection. Since I do not have a manual, why do you say the turning of the barrels is a big no-no... By the way, anybody know where any parts for the fuel system components can be ordered on-line as my local Bobcat dealership is too far away to frequent regularly and I always feel as if I am standing in line at a convenience store with lotto customers in front of me and very seldom do they have parts needed on-hand..It is sad when I have to drive 47 miles to purchase fuel washers.. Okay, back on subject... If after installing pump and problem is not corrected I will heed your advice and take the pump to a known good diesel repair shop.

I think what Dan was talking about in the pump is if you go in too far, you will mess up with the settings. The deepest a DIY person should go is no further than the non return valve just under the delivery valve nozzles. Any deeper and you risk mesing with the amount of fuel the pump will generate for that injector. If it is messed up, it will need to go to a diesel shop to get re-calibrated.
If the plunger was sitting wrong, and you got the piece of metal out, hopefully that is the issue. I have had them stick from the oil drying out before after it was left sitting for a few years.
Fuel system parts can be got from a Kubota dealer too, or a diesel shop.

 

[xtr3me_03]

I think what Dan was talking about in the pump is if you go in too far, you will mess up with the settings. The deepest a DIY person should go is no further than the non return valve just under the delivery valve nozzles. Any deeper and you risk mesing with the amount of fuel the pump will generate for that injector. If it is messed up, it will need to go to a diesel shop to get re-calibrated.
If the plunger was sitting wrong, and you got the piece of metal out, hopefully that is the issue. I have had them stick from the oil drying out before after it was left sitting for a few years.
Fuel system parts can be got from a Kubota dealer too, or a diesel shop.

Tarza. No doubt Dan is offering sound advice and should be heeded by all unless one has the skill set and knowledge in this field. Yet its too late, I have already dug in... I do believe the furthest I have disassembled is the delivery valve nozzle which I have been referring to it as the wrong nomenclature "plunger". Upon reassembly is the passage way (hole) of the delivery nozzle supposed to be facing any particular direction?

 

[xtr3me_03]

Tarza. No doubt Dan is offering sound advice and should be heeded by all unless one has the skill set and knowledge in this field. Yet its too late, I have already dug in... I do believe the furthest I have disassembled is the delivery valve nozzle which I have been referring to it as the wrong nomenclature "plunger". Upon reassembly is the passage way (hole) of the delivery nozzle supposed to be facing any particular direction?

Thanks Dan for response. After doing a through visual inspection of internal components of pump while acknowledging your reply in regards to timing..... I did note that the delivery nozzle has a machined notch/groove cut out on it and the other nozzles that I did not remove were positioned center of the open ports on the side of the pump... Will post picture for view later. Hopefully you have saved me a lot of headache...Learning the hardt way...

 

[Tazza]

Thanks Dan for response. After doing a through visual inspection of internal components of pump while acknowledging your reply in regards to timing..... I did note that the delivery nozzle has a machined notch/groove cut out on it and the other nozzles that I did not remove were positioned center of the open ports on the side of the pump... Will post picture for view later. Hopefully you have saved me a lot of headache...Learning the hardt way...

yeah, not much you can do after the fact. It does take a bit of digging to cause an issue. Hopefully it's fine. The plunger does have a notch, as it twists it adjust how much fuel gets delivered.
*fingeres crossed* that it works just fine.