190XT Series III Diesel

Bob Woods

New User
I have a problem with my tractor that I cannot find the cause of, and it's driving me crazy.
Once in a while, and with no noticeable pattern, the engine will just die. Almost sounds like it's run out of fuel.
Every time, up until today, maybe an hour later and it would start, and work like it's supposed to. But today, it flat out won't start.
I even put a squirt of starting fluid in the air intake, and nothing.
I'll admit that a diesel engine is not high on the list of things I know a lot about, but I'm hoping that someone here can point me in the correct direction.
Thanks so much for your help and suggestions.
 
Starting after an hour or so sounds like a bad head in the pump, could still be, but take the little plate with 2 screws off the side of it, and if there are small black rubber pieces, the pump needs rebuilt.
 
sounds like you may have a piece of some thing floating in your fuel tank and it gets sucked onto the fuel inlet stopping the flow. when the engine stops it floats away. Randy
 
That would make sense, but even with something plugging the fuel line, shouldn't it fire from the squirt of starting fluid?
 
Try taking fuel line between filter and fuel pump loose. Then pump hand primer a see if you getting a good supply of fuel. You may not have sprayed enough starting fluild or cranked it long enough to get starting fluid to engine. Even if pump is junk it would fire on starting fluid. Good luck
 
Similar issue. My 6070 will run strong for 4-5 minutes under load at 2,100 rpm then lose power; still runs but will barely pull itself along. Vent cap on fuel tank is working, I changed the filter, took fuel line off and had plenty of flow. Just now after reading the post I pulled the 2 screw plate off and found no rubber bits but fuel flowed freely from the opening.

A bit of history. Tractor recently began running really rough at idle but would smooth out at 1500 rpm and seemed to have no noticeable loss of power. I had had a similar issue with a diesel benz and it was deteriorated o-rings in the delivery valves due to modern sulfer free fuel. It was an easy 45 minute fix on the car. The way the tractor behaved led me to think it could also be a bad injector or burned/sticky valve. Engine has 4k hours on the clock so it seemed reasonable to have the injectors rebuilt. No change, so I pulled the head. A bit of carbon around a couple of the valves but nothing terrible, cleaned things up, reassembled and again, no change. Dumped a half can of Lucas fuel treatment in a half tank of fuel (thought it might help any seals in the pump) and started mowing hay tonight. Ran like a champ for a little over an hour then the tach took a nose dive. Shut off the PTO and limped back to the barn in low range. This is when I changed the filter and checked the flow. If it sits for five minutes it will start right up and actually idle smooth as silk (maybe the Lucas helped) but after a few minutes at speed, under load, she starves for fuel again.

Thought I would drain the tank tomorrow and make sure the outlet is clear but any other thoughts/ideas would be welcome......

Thanks,
Jim
 
Just repaired a D21 with the same trouble, the injection pump weight retainer ring breaks apart and bits plug the return line. If it runs OK while fuel leaks out of loose timing cover then the pump needs repair. Don't wait too long, if the retainer pins break off inside the pump will then be wrecked as the head locks up, breaking the drive shaft. Seen it too many times in years of injection repair.
 
Had a similar thing happen to my 6060, like others said, small black bits of rubber. Mine also had some moisture problems that the solenoid(fuel shut off) won't pull enough. Mine would sometime run for an hour and other time would run for 15 minutes and then start to slow down and finally only idle. Had the inj. pump rebuilt and no more problems. Lee
 
I want to thank everyone for their help and suggestions.
I went over and pulled the cover plate off, and the inside was very clean.
There was no rubber pieces at all.
When I pulled it loose, diesel streamed out of it.
I put the cover back on, and shot a squirt of starting fluid in the air intake, and the engine fired right up.
It's been running at a fast idle for about an hour now, has has not hiccuped once.
As soon as my hay dries, I'm going to give it a try with baling again.
Any other ideas on what it might be?
To me, it still seems like a fuel problem.
Thanks again for all the help.
 
I will go shut the engine off and bale with the other tractor then.
Thank you so very much.
Would you know any good diesel guys in the Kansas City area?

Thanks again.
 
I have a series 3 XT and was having a similar issue. the pump needs to be overhauled but my mechanic whos worked on allis' for about 50 years had me pull a spring and a ball out of the pump. for the life of me I cant remember why but it worked. runs rough at idle but it runs good over 1300-1500 RPM. It starts horrible but no loss of power, Ive been using it that way for 6-7 years because there hasnt been any extra money to get the thing overhauled.
 
I'm very interested in learning more about the ball and spring you mentioned.
I don't really have much problem with getting my pump overhauled, but right now the tractor is sitting in the field. It'll fire on starting fluid, but not run, so I can't even load it on a trailer.
Where is this ball and spring?
I appreciate the help.
 
My 5040 did something similar. It would act like it ran out of fuel while mowing at high rpm. Changed fuel filters and did the same thing. Turned out that I removed the rubber supply line coming from the tank at the metal barbed fitting at the lift pump and it was packed with fine pieces of straw about an inch long. Cleaned it out and fired right up.
 
(quoted from post at 17:17:14 06/23/15) I have a problem with my tractor that I cannot find the cause of, and it's driving me crazy.
Once in a while, and with no noticeable pattern, the engine will just die. Almost sounds like it's run out of fuel.
Every time, up until today, maybe an hour later and it would start, and work like it's supposed to. But today, it flat out won't start.
I even put a squirt of starting fluid in the air intake, and nothing.
I'll admit that a diesel engine is not high on the list of things I know a lot about, but I'm hoping that someone here can point me in the correct direction.
Thanks so much for your help and suggestions.

Had an IHC come into the dealership where I worked in the '70s with similar symptoms - turned out the fuel line from the pump to the tank was plugged with diesel-embalmed flys :shock: - a shot of shop air and all was well 8)
 
Take your return line off of the injection pump. Its on the very top . Unscrew the fitting that goes directly into the top of pump, there should be a small glass ball inside of that fitting, knock it out and put everything back together. Should fire right off. If it does you're in need of a pump rebuild sometime down the road, your governor flex ring is coming apart. The small pieces will plug up the check ball in your return line causing tractor to die. Did it have any erratic rpms? Usually at lower rpms
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top