I think your statement, after years of sitting may be the clue. Unless you
flushed out the gas tank I'd bet there is some sediment in there thats mixing
with the fresh gas to cause a problem. Is there an inline filter that needs to
be changed out?
Tuck Southworth
> From: fogbro1@comcast.net> To: mgs@autox.team.net> Date: Sun, 21 Oct 2007
23:56:55 -0400> Subject: Re: [Mgs] Weber carb info> > List,> > Well, after
removing, dismantling, cleaning, reassembling, and reinstalling > the Weber
downdraft to my friend's '77 MGB, I can report no change in > symptoms
whatsoever. I found the carb to be relatively clean, with only a > skim of
rusty sediment in the float chamber.> > Idle is still rough and irregular,
rough enough to cause the oil pressure > gauge to fluctuate. Steady running
still experiences missing at any steady > engine speed, parked or driving. It
does appear to smooth out during > acceleration, perhaps when the secondary is
open.> > Present ignition system is the new, self containing Pertronix with
mating > coil. Plugs and wiring are new. Compression is great and even. Valves
are > set. Plugs are new.> > After years of sitting, enough to dry whatever
was in the tank, I added 5 > gallons of fresh fuel along with a carb cleaner.>
> How can such a simple instrument behave this badly?> > Thoughts?> > Do I
tell the guy to buy a new Weber? Is it the Weber? Do I spend a day > putting a
pair of SU's on this thing as a test?> > TIA,> > Ed Woods >
_______________________________________________> tsouthworth70@hotmail.com> >
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