I had this same issue when I ran twin DCOEs on the Spitfire years back.
Turned out to be a piece of debris that somehow got through the filter.
russ
-----Original Message-----
From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of Allen Washatko
Sent: Monday, September 01, 2014 11:31 PM
To: McKearn McKearn
Cc: fot@autox.team.net
Subject: Re: [Fot] Weber carb issue
P.J.
Can't answer the idle adjustment issue but I would say that the needle and
seat valve at the float needs replacement. Just had the same issue with a 40
DCOE Weber. The needle valve comes in the standard rebuild kit so it must be
a regular replacement issue. Use a 175 which is good up to 300 H.P.
Fuel pressure may be a little high. Pierce Manifold recommends 11/2 -
2 lbs. max pressure for side draft Webers.
Hope that helps some.
Allen
On Sep 1, 2014, at 8:45 PM, McKearn McKearn wrote:
> Hi All.
> I have triple webers on my GT6 and one carb does not respond at all
> to changing the idle adjusting screws. This is the number three carb.
> which is
> at the rear of the engine. It is also leaking a bit of fuel when fuel
> pump is on with engine not running. Fuel pressure is 2-3 psi. This is
> the first carb in line after the fuel pump. Could this be a float
> problem?
> Thanks P.J.
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Allen & Jody Washatko
1971 TR6 - Number 6
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