Paul, I've driven this car as a daily driver for the past 14 years, and
thought the car was running strong till I changed carburetors ( ease of
working on t the carb's if needed prompted that change) and it's just lack
of power, I'll change back over to my old carburetors today and see what
happens,
----- Original Message -----
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
To: "1971-red-mgb" <1971mgb@cox.net>; "MG LIST" <mgs@autox.team.net>
Sent: Monday, November 05, 2007 4:40 AM
Subject: Re: [Mgs] anemic running B
> You say 'anaemic, do you mean running with a weak mixture as indicated by
> the plugs and stumbling on acceleration or just lack of power? If weak
have
> you checked for things air leaks round the manifold and poor fuel
delivery?
> Lack of performance can be caused by any number of things from dragging
> brakes to expecting too much from the car if you are used to modern
> rice-rockets. Are you comparing it to another B? Or was your car running
> properly and it has changed to running poorly? If the latter, what did
you
> do immediately before this started happening!?
>
> A compression test is easy enough to do, do a wet and a dry, on a hot
engine
> with all plugs out and the throttle wedged wide open. After that it is a
> matter of going through all the setting-up adjustments like valve
> clearances, plug gaps, points gap/dwell, timing including centrifugal and
> vacuum advance curves. You say timing is 'correct', but correct to what
as
> the original spec would have been for leaded fuel of higher octane than
> today. These days the best setting is probably the one that is just short
> of pinking at any combination of throttle opening, engine speed and load.
> Only when all that has been done and any defects corrected should you
> finally set the carbs up for correct air-flow and mixture balance from
first
> principles.
>
> PaulH.
>
> ----- Original Message -----
> > o.k. folks, I need some help in diagnosing a problem on my MGB (engine
is
> > a
> > 1969) , bottom line is the car is running anemic, here is what I did:
>
>
>
>
> --
> No virus found in this incoming message.
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11/3/2007 9:42 PM
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