Agustin de la Calle wrote:
>
> Hi there,
>
> Last Sunday at the Brookline auto museum I saw a red MGB with a normal
> engine. I mean no turbo or compresor, but it had a vaccum gauge.
> Does anybody know why a vacuum gauge would be of some help here?
>
> Cheers,
> Gus
Well, I have used a vaccum gage to look at manifold pressure to aid in
the fine tuning the timing on my B. Since my car has a non-standard
exhaust, and carb, and the fact the fuel mixtures are different today
than 20 years ago, the factory "book-spec" is no longer exactly right
for my car. Adjusting the timing for maximum manifold vaccum (without
obvious backfires or pinging obviously), and then adjusting fuel-air
mixture results in a strong running engine w/o the benefit of an
exhaust gas-analyzer. But mounting one in a car? I can't understand
that.
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