Hmmm, twin carbs so would still run (badly) if one were faulty. Centrifugal
advance issues in the distributor would affect starting as well as slow
speed running. What is low during cranking and large throttle openings, but
maximum at idle and smaller throttle openings, is manifold vacuum as used in
your era of North American spec cars. Points plate ground wire broken or
coil wire conductor broken inside the insulation? My first diagnostic in
non-starting or running conditions is the (electric) tach, 2nd is the timing
light just to check for HT on the coil lead and each HT lead.
----- Original Message -----
From: "Christian, Wellner L. CIV COMNAVAIRSYSCOMPATUXENTRIVERMD AIR 4.1.1.4"
<wellner.christian@navy.mil>
To: "MG Digest (E-mail)" <mgs@autox.team.net>
Sent: Wednesday, January 21, 2004 1:30 PM
Subject: Dead 1974 MGB - Quiz
> Summary: In the above scenario, what would allow it to run perfectly
above approx 4000 RPM and not run al all below approx 3500 RPM and be
repeatable ??
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