Ford 5000 carb float what is measurment think float issue?

Shealray

Member
I have a Ford 5000 with a single barrel hollie carb.
What is the measurement for the float. Any pictures showing it would sure be appreciated.

Tractor started this:

Ran good for an hour then acted like out of gas.

We did this:

Checked for gas in the carb bowl by unscrewing bolt at the bottom of carb. Gas was in the bowl.
Replaced plugs.
Found water in the coil replaced it.
Put sea foam in the tank.

Tractor started and governor started hunting.

We turned off tractor let it set for a few minutes.

Started tractor now it runs smooth.

I do not trust tractor carb. Got to get hay up if it stops this rain.
So we are thinking intermittent float sticking. This is why I am asking what to look for in the float?????

Thank you
All comments welcome
 
If it was running fine before, the float level is not likely the problem, they are not known to go out of adjustment on there own.
On rare occasion I have seen a needle stick on the seat if the float arm did not have a spring or tab to pull it off the seat when the float drops.
A metal float can develop a pinhole in it.
But then the symptom would be flooding from a lack of being able to close the needle and seat.

I would be checking for:

a dirty fuel filter
an obstruction in the fuel system
pinched or dented line
faulty fuel pump
plugged tank vent...


Any of the above can limit the flow of fuel enough to cause the issue you are describing.
You need to check the volume of fuel getting to the carb.
Remove the fuel line at the carb, point it into a container and observe the flow while cranking.
A plugged passage in the carb could cause your symptoms but it is unlikely it would come and go after sitting for a while unless it is sediment in the bottom of the float bowl.
 
holley carbs like some positive fuel pressure, they don't like gravity feed. got fuelpump?

screens in tank and pump clean?

hunting on a gasser can mean fuel starvation.. when it hunts, tug on choke a little.. if it helps.. deffinately look at fuel starvation.
 

Disconnected fuel line before sediment bowl.
Ran tractor fuel came out of line good tell carb out of gas.
So we are thinking fuel pump good.
No sediment in bowl.

Noticed hole in sediment bowl was partially covered up by
rubber seal so I cut some away to clear slot.

Gas cap has 4 small holes at top. Poked needle in them and hit metal base of some sort a screen? Blew in to cap from top side hard to blow. Is their a screen of some sort in the cap. This is the original cap. So going to use tractor to move some gravel if it does this again will take off gas cap.

Pictures are the cap and sediment bowl top.

I
mvphoto24390.jpg


mvphoto24391.jpg


mvphoto24392.jpg
 
(quoted from post at 07:55:16 07/14/15) holley carbs like some positive fuel pressure, they don't like gravity feed. got fuelpump?

screens in tank and pump clean?

hunting on a gasser can mean fuel starvation.. when it hunts, tug on choke a little.. if it helps.. deffinately look at fuel starvation.

Tractor ran for 30 minutes good. Started acting like out of gas.
Took gas cap off did not help. Choked did not help.

Do you think needle value in carb sticking not allowing bowl to fill?
 
(quoted from post at 14:21:27 07/14/15) Did you read my post?

Fuel screens?

Fuel pump?

Fuel pump:
We disconnected fuel line before it gets to the cab. Ran tractor fuel came out in a pumping action steady. Ran until tractor carb bowl empty and tractor died.

Tank screen
No is there an easy way to check it without taking fuel out?

Thanks
 

We have taken starter fluid in a spray can and sprayed this
into the air breather side and the tractor runs for a few seconds.

We thought of taking sediment bowl loose again and making sure there is blockage from the sediment bowl to the carb.

Sediment bowl has gas in it not sure if there is blockage to carb.

We will do this tomorrow as the day is almost gone have animals to feed.

So if the tractor runs when you spray starter fluid in the air breather side. Does this mean the carb is OK?

Thanks for the help
 
No, it means spark I good and you are feeding it fuel thru air intake.

Pretty much means you aren't getting fuel. Could be see bowl, etc.

If machine runs a bit with carb bowl fuel, that means basic carb function lil main ckt is ok, delivery from sediment bowl thru float valve would then be suspect, if fuel pump flows.
 
(quoted from post at 17:03:06 07/14/15) No, it means spark I good and you are feeding it fuel thru air intake.

Pretty much means you aren't getting fuel. Could be see bowl, etc.

If machine runs a bit with carb bowl fuel, that means basic carb function lil main ckt is ok, delivery from sediment bowl thru float valve would then be suspect, if fuel pump flows.

Hour ago I tried tractor again was in my little field close to the house. Tractor die I then went in house waited about and hour went back to tractor. I started tractor had to choke it ran about 15 feet died. I started again choke open full with it spitting the whole time to the house. When I got to the house it stopped spitting and I pulled in choke. Tractor ran fine for 15 minutes I then turned it off. Choke allows gas to get to bowl HOW?

Lesson 101 how does a choke work? Your kindness in dealing with a newby is appreciated.
THANKS
I too think check from sediment bowl to car in the morning.
 
In a carb, air flows into the mouth, thru a venturi and out into intake.

There is a throttle flapper above venturi, and a choke flapper at mouth/ air inlet.

This is a basic and not completely correct explanation due to differences between air pressure and manifold vacume, also leave out other parts of the carb, but should give you the concept.

Opening throttle keys more air flow thru, air passing main atomized and I drawn into intake manifold.

Choke closes off air flow befour venturi, increases effect of manifold vacume, sucks more fuel. In the case of a partial plugged main, or low bowl fuel, choke basically gets you more fuel if available..

If float is stuck closed, or valve dirty, blocked, not much gas makes it to bowl.
 
(quoted from post at 18:35:37 07/14/15) In a carb, air flows into the mouth, thru a venturi and out into intake.

There is a throttle flapper above venturi, and a choke flapper at mouth/ air inlet.

This is a basic and not completely correct explanation due to differences between air pressure and manifold vacume, also leave out other parts of the carb, but should give you the concept.

Opening throttle keys more air flow thru, air passing main atomized and I drawn into intake manifold.

Thanks


Choke closes off air flow befour venturi, increases effect of manifold vacume, sucks more fuel. In the case of a partial plugged main, or low bowl fuel, choke basically gets you more fuel if available..

If float is stuck closed, or valve dirty, blocked, not much gas makes it to bowl.


Just found this in front of carb. Who knew their was a tiny wire filter inside fuel fitting before carb. Is was very nasty and hardly anything can get past it "the issue" Pictures show it. We are going to put in a inline fuel filter. Any suggestions on what to do. Thank you kind sir for assisting me and teaching me.



24398.jpg
24399.jpg
24400.jpg
 
you WERE asked if all screens were clear.

an exploded diagram of this carb is available at the CNH website.

likely a screen at the fuel pump, and of course in the tank tap.

ford liked multiple screens.

hope that solves your problem
 
(quoted from post at 04:58:08 07/15/15) you WERE asked if all screens were clear.

an exploded diagram of this carb is available at the CNH website.

likely a screen at the fuel pump, and of course in the tank tap.

ford liked multiple screens.

hope that solves your problem

THANKS
 

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