Allis B gas is running out of the bottom of carburetor, help

Jeff In Wisconsin · May 15, 2011

I recently purchased a B and today I started playing with the mechanics of it changed the point and cap but still seem to run rich, adjusted the carburetor screw didn’t seem to make a difference.

It ran out of gas; so I added a gallon and gas started running out the bottom of the carburetor not dripping.
I used a wooden hammer handle and tapped the heck out of it to see maybe it the float was stuck, but to no avail,

Do these carbs have floats in them and could be stuck or something else maybe?

Now the tractor will not run at all.
Thank you!

Bob · May 15, 2011

Yes, they have a float which could be stuck, which lifts a "needle" up into a seat to stop the flow of gas when the float bowl is full.

The float could be stuck, damaged/full of gas, the needle and seat could be cruddy or otherwise defective, or there could simply be a piece of crud stuck in the needle and seat preventing it from shutting off the flow of gas.

Jeff In Wisconsin · May 15, 2011

From the outside the unit looks basic but any does and don't when I go to rip it apart? ball bearings or springs stuff like that?

I do not have any repair manuals yet so will be from memory and kodak moments. :?

atlarge54 · May 15, 2011

If you can change a set of points, you should be able to rebuild the carb. They're just about a simple on the inside as they are on the outside. Try not to tear the gasket when you take it apart. You can get some idea of the float function by blowing in the fuel inlet and raising and lowering the float.

old · May 15, 2011

These carbs are very simple and pretty easy to rebuild. If you have a local O'Reilly's auto parts store they sell a carb kit for around $20 that has good instruction in the kit. They handle the Walker brand. As for what is wrong Bob pretty much covered it

steve(ill) · May 15, 2011

if you have ever had a lawn mower carb, any garden tracotor car, or old car carburetor apart.. they are 90% the same. I have taken several apart. blown out with air, washed with laquere thinner, and reassembled without new parts. I have even cut a new base gasket from stock material.. THis is pretty simple. Trying to unscrew some of the small jets is sometimes difficult if they have grown into position.. sometimes just blowing thru, or using a small wire to poke thru them will do it.

Jeff In Wisconsin · May 15, 2011

Thank you very much every one for the advice!

first thing tomorrow I will give it a go.

Let you know what happens and what I found.

Cheers, Jeff

Jeff In Wisconsin · May 16, 2011

So I took it apart, easy enough.
.
.

Cleaned what I could at the time.
.
.

Found that the float was full of gas.
.
.

Looks a little beat up!

Couple of questions.

What can I use to clean the rust out of the bowl area? Acid, navel jelly, or?

Has anyone attempted to solder a hole or crack in a float?
Thinking of drilling a small 32nd" hole the top and very very gently blow the gas out then add water with a syringe and blow that out, heat it only to the point of boiling the water out; then soldering the crack and hole shut, does this sound doable. I am no stranger to soldering!
Thinking to that I would try to solder the crack and hole with a large soldering gun and not a torch, one second to long with a torch and the whole thing could fall apart; risky.
What’s the worst that can happen? (I have to buy a new float anyway) just trying to save $28 bucks plus up and running tomorrow.
Comments please!

old · May 16, 2011

You can buy new floats form Agco or nnalert or even this site. As for cleaning a carb a good 24-48 hour soaking in a good carb cleaner works well. I have also if real bad used a dremil type tool to clean them up but I have also been doing carbs now for 30 plus years.

old · May 16, 2011

Oh by the way my e-mail is open if you need extra help and I even give help on the phone if you send me an e-mail do it all the time to people all over

Allis B gas is running out of the bottom of carburetor, help

Jeff In Wisconsin

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Bob

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Jeff In Wisconsin

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atlarge54

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old

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steve(ill)

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Jeff In Wisconsin

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Jeff In Wisconsin

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old

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old

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