Off Brand diesel fuel problem

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   I have a backhoe I use on the farm and its giving me fits, I thought I would throw this out to see if someone could help me. It's a Case 580K and I run it for about 40 minutes and then it starts acting like it wants to die, and it has died before and is hard to start after that. If I walk off and do something else for a while and come back it will run again for about that long then the same thing. Fuel filters were change 100 hrs ago. If you fellas have any ideas. Thanks, Kevin.

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KD in SE Ks Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Jul 2011 Location: Southeast Ks Points: 276	Post Options Post Reply Quote KD in SE Ks Report Post Thanks(0) Quote Reply Topic: Off Brand diesel fuel problem Posted: 26 Oct 2011 at 2:32pm
	I have a backhoe I use on the farm and its giving me fits, I thought I would throw this out to see if someone could help me. It's a Case 580K and I run it for about 40 minutes and then it starts acting like it wants to die, and it has died before and is hard to start after that. If I walk off and do something else for a while and come back it will run again for about that long then the same thing. Fuel filters were change 100 hrs ago. If you fellas have any ideas. Thanks, Kevin.

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Kcgrain Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 24 Sep 2009 Location: Wisconsin Points: 767	Post Options Post Reply Quote Kcgrain Report Post Thanks(0) Quote Reply Posted: 26 Oct 2011 at 3:36pm
	I have seen this happen before and both times there was something in the tank, or lines that took X amount of minutes to work itself closed, shutting the fuel off, after the engine dies the suction pressure is gone the abstruction moves letting fuel flow again . Had this happen on a 1494 Case did it for years till my uncle finally dumped it, after alot of parts changing etc it turned out to be a piece of plastic stuck in the fuel delivery line acting like a valve when suction was applied it closed off, take the suction away it would let fuel flow. Was much worse when the tractor was low on fuel. Had a another tractor doing the same thing and there was something floating in the tank that would get sucked over the inlet, release the suction and it would float again. Just my expierence, but take off the lines on the tank and blow it backwards see if anything comes out, empty the tank and see if there is anything inside it. That would be the least expensive thing to try, it could also be in the fuel injector pump something going wrong internally.

ianoz Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Aug 2010 Location: central QLD Points: 234	Post Options Post Reply Quote ianoz Report Post Thanks(0) Quote Reply Posted: 26 Oct 2011 at 3:40pm
	Also check the banjo fitting , Some have filters inside them .

doctorcorey Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Jul 2011 Location: S. KC Missouri Points: 570	Post Options Post Reply Quote doctorcorey Report Post Thanks(0) Quote Reply Posted: 26 Oct 2011 at 4:36pm
	Also check the fuel cap vent for spider webs or dirt. Or if you tee a vacuum gauge into the fuel feed line from the tank, if you get any significant vacuum reading, then you have the plugged tank screen or cap. On bad fuel, I did once have a customer come in here with a Powerstroke that had 20 gallons of kerosene/water mix in the tank. It ran, but barely. The gas station denied any problem, but mysteriously shut down for 2 days....

steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77845	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 26 Oct 2011 at 4:55pm
	Our CASE 530 hoe sat for several years and the tank got rusty inside. Tried to clean, but eventually i took off the line on the bottom, put a TEE with a sediment collecting tube pointing down, and ran a line off the side of the TEE into a filter and from there to the carb.. Since yours runs for some time, im wondering if it is really fuel related or could by tight valve clearance, etc ??
	Like them all, but love the "B"s.

Ages Cat Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Hutchinson, MN Points: 681	Post Options Post Reply Quote Ages Cat Report Post Thanks(0) Quote Reply Posted: 26 Oct 2011 at 4:58pm
	I had a 401C John Deere that would do that. We finally found a shinny metal cap from a fuel additive floating in the tank. When the fuel level would go down the suction would suck the cap into the outlet and stop the tractor. After it floated free it would start again. The HD3 did that for a time also. We found a rag in the tank.

KD in SE Ks Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Jul 2011 Location: Southeast Ks Points: 276	Post Options Post Reply Quote KD in SE Ks Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 5:43am
	Thanks for the response guys. Lots of ideas I hadn't thought of.

B26240 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 21 Nov 2009 Location: mn Points: 3860	Post Options Post Reply Quote B26240 Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 7:35am
	I don't know what pump is on a case but I had a 450 JD many years ago with these symtoms and turned out to be a seal going out in injection pump, a peice would come off and get stuck in a check valve in return line. JD shop forman said this happed sometimes told me to use toothpick to clean. Did that for several months till I traded machine

injpumpEd Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Walnut IL Points: 4773	Post Options Post Reply Quote injpumpEd Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 9:35am
	sounds to me like the common broken flex ring in a Roosa Master DB pump. Is that what this has? Case engine? Take timing cover off pump (rectangular plate on side of pump) to bleed the excess housing pressure. If it continues to run with cover loose, then time for pump work. good luck, Ed.
	210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

ac45 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Points: 395	Post Options Post Reply Quote ac45 Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 9:59am
	That should have a CAV pump depending on the year, There is a liitle automotive style inline fuel filter at the bottom of the tank , by a small shut off valve in the line, Id check this. It could be your problem, you just about have to lay on your back under the step to see it , it is up by the bottom of the frame rail. This is if you havent already replaced it. It often gets over looked.

ac45 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Points: 395	Post Options Post Reply Quote ac45 Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 10:01am
	580K would be a cummins, Later K's may have a bosch rotarty pump on them

KD in SE Ks Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Jul 2011 Location: Southeast Ks Points: 276	Post Options Post Reply Quote KD in SE Ks Report Post Thanks(0) Quote Reply Posted: 27 Oct 2011 at 6:37pm
	Thanks again, I think its an 1989 model. When I get a break I'm going to take it loose on the bottom of the tank.

tractorchuckie Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 29 Oct 2010 Location: Arthur Ontario Points: 310	Post Options Post Reply Quote tractorchuckie Report Post Thanks(0) Quote Reply Posted: 04 Nov 2011 at 7:56pm
	when it starts to do it get the hose and wash down the fuel pump with cold water. if it runs better the injector pump barrels are worn and need rebuilt the fuel today doesn't have the lubricanting capability of the older fuel. the cold water tightens up the tolerance in the pump. an quick and easy test.
	still looking for the holy grail of Allis

KD in SE Ks Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Jul 2011 Location: Southeast Ks Points: 276	Post Options Post Reply Quote KD in SE Ks Report Post Thanks(0) Quote Reply Posted: 21 Jan 2012 at 11:35am
	UPDATE: I drained the fuel, replaced the hose to the fuelpump and the thing that I think was the main problem, I pulled an inline fuel filter that was plugged so bad I couldn't blow through it. Cross my fingers, I ran it 2 hours taking some trees down and ran like a top. Thanks again for the help! Kevin