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Fuel problem on H Farmall

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John

05-29-1999 12:14:16




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The engine dies out because lack of fuel in
carb. no gas at drain plug on bottom of carb.
disconnected fuel line at carb. and removed
screen everything looks ok and plenty of gas flowing thru. fuel line.
it seems as though something inside the carb.
is restricting the gas flow,any clues?
tractor will start and run until gas is gone
please help,lots of work to be done
thanks john@ tn.

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RED Blooded

05-29-1999 13:06:26




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 Re: fuel problem on H Farmall in reply to John, 05-29-1999 12:14:16  
The float may be out of adjustment.But i suspect that somethig is blocking the fuel.I had a very similar problem on my I-4.Turned out a small piece of trash was stuck in the needle assembly not letting my float open right.Just goes to show that cleaning it right is important!



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RKS

05-29-1999 16:39:52




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 Re: Re: fuel problem on H Farmall in reply to RED Blooded, 05-29-1999 13:06:26  
pardon me: both the "REDs" are right. RKS



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The Red

05-29-1999 13:01:59




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 Re: fuel problem on H Farmall in reply to John, 05-29-1999 12:14:16  
John which screen did you check? There are 2. One at the fuel strainer bowl and one where the gas line screws into the carb.



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RKS

05-29-1999 16:38:42




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 Re: Re: fuel problem on H Farmall in reply to The Red, 05-29-1999 13:01:59  
Red is right - the fuel is seeping past the blockage and filling the float chamber when parked, then you use it faster than the line will refill it - so it is either trash in one of the two "external" filters or in the tank neck or fuel line itself, or trash hung in the "float valve itself" which if it hasn't been rebuilt is probably a "caged bb" type. Sounds like the float is working ok, or fuel would be spilling over the main jet venturi and out the air intake. Also sounds like the main and idle needle valves are ok, if it cranks and runs normally until out of gas. You have two chances at preventing a carb rebuild - (1)trash in filters/(2)trash in tank or line - but if you can't find it there, a rebuild kit is about $30 or less, without the float itself. The float valve in the kits is a teflon coated "wedge needle." If you rebuild, be sure and test the float for leaks, and test the float for dragging on the side of the float chamber. Turn it upside down when finished before attaching it to the manifold and listen for the "clink" as the float closes the float valve. Also, as you turn it upside down, you won't be able to blow into it, and then will again as you turn it right side up. RKS

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Loooooney Bin

05-29-1999 19:06:52




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 Re: Re: Re: fuel problem on H Farmall in reply to RKS, 05-29-1999 16:38:42  



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Peeeecker Head

05-30-1999 03:57:38




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 Re: Re: Re: Re: fuel problem on H Farmall in reply to Loooooney Bin, 05-29-1999 19:06:52  



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The Red

05-30-1999 05:07:55




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 Re: Re: Re: Re: Re: fuel problem on H Farmall in reply to Peeeecker Head, 05-30-1999 03:57:38  
RKS its not worth venting over. That's the same person who wanted the appraisal on a kazillion tractors in a barn over on tractor talk. He described himself quite accurately.



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