185 Fuel Issue

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   I have a question. The other day i was digging with my 185 and about an hour and a half in it decided to lose RPMs and power to the point it could barely pull itself. Push the clutch in it regains the RPMs but if you let of the clutch it goes back to barely even pulling itself again, limped it home and let it sit till the next day ran fine for an hour or so again and did the same thing, came home and let sit for a couple hours and put it on the grain drill and it did the same thing after an hour in again. One time i got off and played with the fuel plunger and it seemed like it helped temporarily but i replaced that a couple years ago so dont know if thats the issue and need to replace or not also fuel filter is only 20 hrs old. Any thoughts on cause or fix ideas. Anything is helpful. Thank you 

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cguetter Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 13 Sep 2023 Location: MN Points: 6	Post Options Post Reply Quote cguetter Report Post Thanks(0) Quote Reply Topic: 185 Fuel Issue Posted: 10 hours 60 minutes ago at 5:33pm
	I have a question. The other day i was digging with my 185 and about an hour and a half in it decided to lose RPMs and power to the point it could barely pull itself. Push the clutch in it regains the RPMs but if you let of the clutch it goes back to barely even pulling itself again, limped it home and let it sit till the next day ran fine for an hour or so again and did the same thing, came home and let sit for a couple hours and put it on the grain drill and it did the same thing after an hour in again. One time i got off and played with the fuel plunger and it seemed like it helped temporarily but i replaced that a couple years ago so dont know if thats the issue and need to replace or not also fuel filter is only 20 hrs old. Any thoughts on cause or fix ideas. Anything is helpful. Thank you

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injpumpEd Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Walnut IL Points: 5206	Post Options Post Reply Quote injpumpEd Report Post Thanks(0) Quote Reply Posted: 10 hours 49 minutes ago at 5:44pm
	Check the return fitting on top of pump, bet it's plugging up with broken down flex ring material. You can put an open fitting in the hose barb's place or you can knock the ball and spring out of the return fitting. I clean and reuse them when I rebuild those as that return fitting is now over $60, adds to an already expensive rebuild job.
	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!

TedN Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 30 Apr 2025 Location: Central WA Points: 172	Post Options Post Reply Quote TedN Report Post Thanks(0) Quote Reply Posted: 10 hours 15 minutes ago at 6:18pm
	Might have a plugged tank vent. See if you can get the fuel cap off when it does it. If it is pulling a vacuum take your air nozzle to the hole in the middle of the cap. Be aware that anything that is plugging it will come toward you. Ted
	190XTD seriesIII, 190XTD seriesI, maroon belly 7000, 190XTD series??? project(or maybe parts)

whatscooking Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Oct 2017 Location: Indiana Points: 104	Post Options Post Reply Quote whatscooking Report Post Thanks(0) Quote Reply Posted: 9 hours 45 minutes ago at 6:48pm
	I drilled out my plastic fuel cans and installed a bolt for a vent I could take out and a small piece of the yellow drilling got down into the elbow of the strainer and made it act that way. I found it by pulling out the plunger it sucked it right back in, knew that wasn't right.

SteveM C/IL Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8989	Post Options Post Reply Quote SteveM C/IL Report Post Thanks(0) Quote Reply Posted: 5 hours 20 minutes ago at 11:13pm
	Loosen screws on timing window so it leaks fuel and see if the "fixes" it. Bet a dollar the flex ring is shot. Know what you're doing before just pulling pump. Others have learned the hard way when they pulled a pump without setting timing first.