Diaphragm?
Lin
Sent from my iPad
> On May 16, 2017, at 6:06 PM, ph <yosmovies at hotmail.fr> wrote:
>
> We are working on my early phase 2 BJ8. Very standard car.very standard fuel
> pump and system.
>
> So, we've noticed that petrol was initially seeping out of the front carb,
> HD8. Then the seepage seemed to get worse, almost as we looked at it. The
> leak is on the front carb and the fuel seems- it's not easy to be sure- it
> seems to be coming out from where the choke cable hits the lever. Given
> sufficient time and particularly a few attempts to start the car, then the
> fuel comes out of the manifold overflow pipe. Plenty of it too.
>
> Some observations:-
>
> 1) both of the floats are good. 100%
>
> 2) no fuel at all ever comes out of the float chamber overflow pipes
>
> 3) the connections at the banjos are sound.no leaks there
>
> 4) the jets??I don't know, are they Grose? They are kind of octagonal in
> their long profile. They have a little spring inside, with traditional cone
> shape at the top and little short, spring loaded, needle sticking out of the
> bottom. One of these things appears to be white nylon/plastic plus brass and
> the other appears to be some low grade silver coloured alloy. Both springs
> appear to be functional and both jets can entirely stop fuel coming out. (ie
> when I close them/push them home by hand). But we know nothing of these
> things. Never seen one before.
>
> 5) Not withstanding my suspicions of these seemingly complex little jets, we
> think they are correctly setup. They are not dropping so far that they can
> jam. No, we think that the jets are probably, note probably!!, OK.
>
> 6) My uncle, who is over from England, is more used to HS4s and Webers but he
> is wondering if the problem could be from the diaphragm. If it splits, that's
> it, right? Fuel in the manifold, fuel on the floor??
>
>
> We'd really appreciate your accumulated wisdom. If we're to get the parts
> over from the UK, we've got to order them yesterday!!
>
>
> Pierre-Henri
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