Bob
I just went through this with a 76 Midget-same motor.
I took it to a local MG mechanic who smogs these
things all the time. He replaces the jet with a high
altitude jet and sends them through. If you are close
to Los Angeles I'll give you his name and address. He
doesn't want this to become common knowledge for
obvious reasons.If the catalytic converter is working
and the engine in decent order it should go right
through. You need a tool to replace the jet but
centering the jet is for SU carbs.The tool and jet
should be available at one of the usual sources. Moss,
Vicky B or The Roadster Factory
Bill
--- "Bollinger, Bob (Bob.Bollinger)"
<Bob.Bollinger@chevrontexaco.com> wrote:
> I am having trouble passing smog (high CO) on my '79
> Spitfire and I
> can't lean out the mixture enough to get it below 2%
> CO (max limit is
> like 1.3%). Someone suggested the needle and/or
> orifice in the Zenith
> Stromberg carb might be worn so I was going to try
> to replace those. I
> was about to order the parts then the guy at
> SpitBits said I needed a
> special tool for installing and correctly lining up
> the orifice seat in
> the carb. Has anyone ever done this and do you need
> a special tool? I
> figured you'd just pry the old one out and tap the
> new one in.
>
> Thanks,
>
> Bob
> 79 Spit
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