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RE: Distributors...

To: "'Charley & Peggy Robinson'" <>
Subject: RE: Distributors...
From: "Dodd, Kelvin" <>
Date: Fri, 27 Apr 2001 09:22:15 -0700

        Check your workshop manual again.  Particularily the part that shows
engine and distributor specifications.  
        Even if you happen upon a home market low compression engine the
advance characteristics are very similar.

        Contrast these specifications to those of a later HIF or Zenith
equipped MGB which has a much higher centrifugal and reduced vacuum

        If you install a later distributor in an early car it will tend to
ping like crazy, particularily if the vacuum unit is broken.

        When Lucas created the specs. for a replacement 45D distributor for
the 63-71 MGB they knew what they were doing.


>  Kelvin,
>   With so many different engine compression ratios, carb setups, etc
> floating around in the stock MGBs, I find it difficult to believe that
> any one dizzy's advance curves can be correct for all '63 - '71 MGBs.
>   Cheers,
>   CR

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