[Healeys] Carburettor trouble

[Richard Ewald]

On Thu, Jan 28, 2010 at 7:38 AM, Richard Ewald <richard.ewald at gmail.com>wrote:

> The cork seals would create an air leak, they would have nothing to do with
> a fuel leak.
> Paul, here is the deal.  A fluid, any fluid, will always seek its own
> level.  Picture if you will a clear plastic tube.  If you hold it in a U
> shape and pour some water (or gas or whatever liquid) into it the liquid
> will settle to where the two ends are level.  Now raise one end of the tube
> up far enough and the liquid will pour out the other end.  The high end is
> your float bowl, the low end is your jet.
> Now looking at your carb when mounted onto the engine the level in the
> float chamber needs to be at the level or just slightly lower than the top
> of the jet.  When properly set the fuel is right at the top of the jet and
> the passing airflow sucks the fuel out and into the air stream.
>
>    - If the level in the float bowl is above the jet, the fuel will run
>    out of the end of the jet.
>    - If the level in the float bowl is correct but the jet is set too low,
>    the fuel will run out of the end of the jet.
>    - If the needle and seat on the inlet of the float bowl leak, the fuel
>    will run out of the end of the jet.
>    - If the float in the float bowl doesn't, fuel will run out of the end
>    of the jet. (brass floats can leak, even a tiny bit of fuel inside will
>    cause the carb to flood.  Plastic floats can become fuel saturated and not
>    float at the right height again causing flooding.
>
> One of these is the cause of your problem.
>
> Never forget what I was told by a weber carb specialist who was explaining
> the difference between carbs and fuel injection.
> "Fuel injection squirts fuel into the engine.  Carbs SUCK."
> :-)
> Rick