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RE: SU Carb Problem

To: "Barney Gaylord" <>,
Subject: RE: SU Carb Problem
From: (eldridge)
Date: Tue, 28 Apr 1998 20:04:49 -0300

> -----Original Message-----
> From: []On
> Behalf Of Barney Gaylord
> Sent: April 24, 1998 12:37 PM
> To: HUTCHINS, JOE; 'mgs'
> Subject: Re: SU Carb Problem
> At 01:44 PM 4/24/98 -0700, HUTCHINS, JOE wrote:
> >
> >..... '73 B ..... I can only get it to start and remain running with the
> choke fully open, and even with that it has to run at between
> 1500 and 2000
> rpm or it will spit, sputter and backfire through the carbs.  ..... It has
> twin HIF's which I have rebuilt. .....
> Look for a HUGE air leak between the carburetor(s) and the cylinder head.
> A friend had an MG that wouldn't idle below 2500 RPM, and then
> only on full
> choke.  We found a couple of mediun spring lock washers between the heat
> shield and the intake manifold, holding open a sizeable gap for air
> intrusion.  Yours may be not quite that bad, maybe a vacuum plug missing.
> Look for a hole about the size of a pencil, or an equivalent gap
> in a gasket.
> Barney Gaylord
> 1958 MGA with an attitude
> Had the same problem
my air leak were bad shafts on the carbs themselves this can be checked be
spraying wd-40 around the shafts and listemn for idle changes
Alan Eldridge
70,72,79 MGB,s


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