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<p>The initial problem sounds like insufficient enrichment when
cold. What's the tach doing - steady or jumping around? Stalling
from idle could be gross fuel starvation, i.e. the same problem,
or could be flooding. Immediately after it has stalled are the
plug wet? Dry? Strong fuel smell or what? In between starting
and stalling will it rev up?</p>
<p>Take the fuel line off the carb, direct it into a container, and
turn on the ignition. An SU pump including on a factory V8 should
deliver a minimum of one Imperial pint per minute and in practice
double that in a continuous series of pulses with minimal
bubbling. I don't know if a Facet uses pulses or a steady stream.<br>
</p>
<div class="moz-cite-prefix">On 21/04/2022 19:56, <a class="moz-txt-link-abbreviated" href="mailto:jimray@hartcom.net">jimray@hartcom.net</a>
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Have
an 80 MGB V8 conversion that has developed a problem I can’t
get my hands around. When cold it coughs and sputters when
first starting up and when warm will not run at idle without
stalling after several minutes. Thinking it might be an
electrical issue, I replaced the plugs, plug wires,
distributor cap, coil, and battery. It has a PerTronix
Ignitor module installed which I did not replace. The
battery shows 12.7 volts on my meter. The alternator is
producing 14.6 volts at ~1500 RPMs and 14.3 under load. Fuel
is fed to an Edelbrock 1404 carburetor via a Facet electric
pump with new filters in the line at the pump and just
before the carburetor. I use 93 octane non-ethanol gas. I
appreciate any thoughts or suggestions you may have.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Jim
Ray<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
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