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small engine carb float leaks Tater 04-01-2007
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Posted by Tater on April 1, 2007, 10:00 pm


the old float had a leak, got a new float, it also had a leak....

sigh.....

tried to solder up the floats, but one still leaks and i've yet to put
the other one to a full test yet. bet it leaks....

getting yet another float seems too much like a crap shoot.

is there some kind of sealant that keeps carb floats from leaking?
shellac or epoxy or something?


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Posted by Steve B on April 1, 2007, 10:32 pm



> the old float had a leak, got a new float, it also had a leak....
>
> sigh.....
>
> tried to solder up the floats, but one still leaks and i've yet to put
> the other one to a full test yet. bet it leaks....
>
> getting yet another float seems too much like a crap shoot.
>
> is there some kind of sealant that keeps carb floats from leaking?
> shellac or epoxy or something?
>

Usually a gasket. Are you talking about the floating float body itself
actually leaks and fills with gas, or gas leaks out of the carb body where
the float bowl joins the main body? If the float fills up, it's cracked.
Otherwise, I'd see about a gasket. You can even make one.

Steve



Posted by Tater on April 1, 2007, 10:37 pm


>
>
> > the old float had a leak, got a new float, it also had a leak....
>
> > sigh.....
>
> > tried to solder up the floats, but one still leaks and i've yet to put
> > the other one to a full test yet. bet it leaks....
>
> > getting yet another float seems too much like a crap shoot.
>
> > is there some kind of sealant that keeps carb floats from leaking?
> > shellac or epoxy or something?
>
> Usually a gasket. Are you talking about the floating float body itself
> actually leaks and fills with gas, or gas leaks out of the carb body where
> the float bowl joins the main body? If the float fills up, it's cracked.
> Otherwise, I'd see about a gasket. You can even make one.
>
> Steve

the float body itsef is filling with gas. the old float was cracked
and i did a quick fix to get it limping along till i got a
replacement. still leaked

then the replacement float sank. pinhole in the solder seam. gaskets
are not an issue, as i got the rebuild kit, and the engine worked
great with the new float for about 24 hours.

I also have a tank problem, but thats another completely different
issue, which i'll be posting about in the future.


Posted by Harry K on April 1, 2007, 10:44 pm


> the old float had a leak, got a new float, it also had a leak....
>
> sigh.....
>
> tried to solder up the floats, but one still leaks and i've yet to put
> the other one to a full test yet. bet it leaks....
>
> getting yet another float seems too much like a crap shoot.
>
> is there some kind of sealant that keeps carb floats from leaking?
> shellac or epoxy or something?

Should be possible to seal it if you can find where it is leaking.
Either solder or epoxy. You don't want to add much weight to the fix
though.

First problem to fix it is to get it empty to begin with. Then to find
the leak, put in a pan of hot water and spot where the bubbles come
from.

Harry K


Posted by Joe on April 1, 2007, 11:01 pm


> the old float had a leak, got a new float, it also had a leak....
>
> sigh.....
>
> tried to solder up the floats, but one still leaks and i've yet to put
> the other one to a full test yet. bet it leaks....
>
> getting yet another float seems too much like a crap shoot.
>
> is there some kind of sealant that keeps carb floats from leaking?
> shellac or epoxy or something?

Why in the world are you putting up with a defective part? Take it
back and demand a new one. After all you bought a part, not a do it
yourself float kit. If enough returns are made the manufacturers
usually tighten up their quality controls so you are doing them a
favor.

Joe.


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