D-15II fueling problem

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   My D-15II gas has an issue that has me baffled. It gets enough gas to the carburetor to piddle around but when you put some demand on it it will run out of fuel after about 30 seconds and quit but start back up  5 seconds later when the fuel catches up.  I have cleaned the sediment bowl and removed the hose form the carb and it runs a big stream until you are tired of watching. Tank is spotlessly clean. Also when you open the drain on the carb it runs more fuel than the tractor would use. Took the carb apart including the fuel elbow, everything is clean. Anyone want to take a stab at what is going on? 

Funny thing is I remember Dad's D-15  having this exact same issue when it was brand new and after going back and forth with the dealer about it he made them send a mechanic out and stay until it was fixed. That was 55 years ago and I cant remember what they did but it was something odd. 

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Butch(OH) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3842	Post Options Post Reply Quote Butch(OH) Report Post Thanks(0) Quote Reply Topic: D-15II fueling problem Posted: 10 Apr 2017 at 8:00am
	My D-15II gas has an issue that has me baffled. It gets enough gas to the carburetor to piddle around but when you put some demand on it it will run out of fuel after about 30 seconds and quit but start back up 5 seconds later when the fuel catches up. I have cleaned the sediment bowl and removed the hose form the carb and it runs a big stream until you are tired of watching. Tank is spotlessly clean. Also when you open the drain on the carb it runs more fuel than the tractor would use. Took the carb apart including the fuel elbow, everything is clean. Anyone want to take a stab at what is going on? Funny thing is I remember Dad's D-15 having this exact same issue when it was brand new and after going back and forth with the dealer about it he made them send a mechanic out and stay until it was fixed. That was 55 years ago and I cant remember what they did but it was something odd.

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22171	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 8:08am
	Hole in the carb inlet valve seat too small??(like an after-market seat not to correct sized specs?) should be same needle/seat as WD-45 and D-17. Something inside carb above the seat floating around blocking the fuel flow?? Float dragging on the carb bowl sides?? Fuel tank cap not venting? (not likely) The rubber hose is deteriorating inside and a flap inside blocks flow when demand is high. spent a lot of time on one of these and fuel flow was never an issue.

Gary Burnett Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: Virginia Points: 3102	Post Options Post Reply Quote Gary Burnett Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 8:08am
	Did you take the jets out of the carb? I've seen a small piece of rust get in the jet that would turn when air came thru it to obstruct the gas flow.Also are the small holes that feed the main jet open? I've seen those so packed I had to drill them out and they looked like no holes were there.

dt1050 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 05 Jul 2011 Location: central pa Points: 1078	Post Options Post Reply Quote dt1050 Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 10:31am
	had a ford do the same thing took the carb apart and cleaned it, then used my air compressor to blow out the all holes in the carb......make sure the carb is empty first or you'll get a shower in gasoline. also could the float have a pin hole in it. took one off the international heard gas in it. left it drain out and sit for a week. tried to solder it and it exploded....I don't recommend that. just get a new float!!!
	Just cause it's orange don't make it a tractor, there's only one..Allis Chalmers

Brian Jasper co. Ia Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Prairie City Ia Points: 10508	Post Options Post Reply Quote Brian Jasper co. Ia Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 10:48am
	I had a bumble bee get in my tank once. It would float around and intermittently block the tank drain and stall the engine. No rhyme or reason to it. I took my Oliver 60 on a tractor ride out of Maryville MO and had a similar problem. I hadn't done anything other than fill it with fresh fluids after I had gotten it from sitting 30 years. It turned out to be there was a hole in the screen in the sediment bowl and a fly had made it's way up to the back side of the float valve. Just like the bumble bee it choked off the fuel and stalled the engine. Nothing like pulling a carb apart in a city park. We ran the rest of the day without issue...
	"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Dean(IA) Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Sep 2009 Location: NE Iowa Points: 430	Post Options Post Reply Quote Dean(IA) Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 11:52am
	Warren Byerly, my brother, had a D-15II with the very same problem. He had replaced the gas hose to the carburetor with black rubber hose. It disintegrated over time and pieces would come loose and get in the carburetor. He then replaced the hose with the correct D-15II gas,hose designed for gasoline from AGCO. It solved the problem. HTH Dean

CTuckerNWIL Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: NW Illinois Points: 22825	Post Options Post Reply Quote CTuckerNWIL Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 11:57am
	My neighbors 770 Oliver was doing that but wouldn't always start back up right away. I changed the coil, checked the points and such. Thought I had it and it died again on me. I finally found a couple of those stinking orange lady bugs in the tank. I was SURE the tank was clean and had fresh gas but...........
	http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

tadams(OH) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 17 Sep 2009 Location: Jeromesville, O Points: 11037	Post Options Post Reply Quote tadams(OH) Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 2:14pm
	I had a truck do that once and the ground wire was on the points.

Gary Burnett Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: Virginia Points: 3102	Post Options Post Reply Quote Gary Burnett Report Post Thanks(0) Quote Reply Posted: 10 Apr 2017 at 3:16pm
	Also might try switching the condenser when they go bad sometimes it'll make the tractor act like its running out of gas.

Butch(OH) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3842	Post Options Post Reply Quote Butch(OH) Report Post Thanks(0) Quote Reply Posted: 25 Apr 2017 at 7:12am
	Well Dr, you earned your name once more. Took the carburetor apart once more and found a burr in the top of the seat that was about 3/4 blocking the hole. Runs fine now, Thanks you!