Ah...thanks for that... exactly what I needed.
Derek Franklin wrote:
> James,
>
> there is a US site with this info - link from Dime Quarterly or:
>
> http://dimequarterly.tierranet.com/articles/tech_weber_tuning.html
>
> I had a very similar problem with my DGAV carb - kept dropping out from idle.
> Turned out there's a secondary pump mechanism on the side away from the engine
> toward the front of the carb. This is vacuum operated, and the diaphragm had
> split allowing fuel to basically gravity feed into the plenum. Blocked it off,
> forgot about it, and now I get 6 to 7 litres/100km :)
>
> hope that helps,
> DF
>
> >Anybody know of any sites with info on tuning the 32/36 weber?
> >(it's a ford cortina weber, bolted straight to a stock L20 with
> >extractors and 2" exhaust.)
> >
> >I am having an Idle problem after the choke goes off on my
> >weber. Won't idle steady...goes up and down... all over the place.
> >the Idle mixture screw has no affect at all...I can screw it all the way
> >
> >down or remove it with no affect. When you first start it and the
> >choke is on (automatic choke - water controlled) it's fine but as soon
> >as it's warmed up and the choke starts to turn off, it starts.
> >
> >Apart from the Idle problem, it runs fine. Starts first time everytime.
> >Anyone got any clues ??
> >
> >Cya
> >JamesF
>
--
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James Fitness
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