Does the tach drop at the same time (i.e. *before* the engine has stopped
spinning)? If so the problem is ignition LT. Does it immediately restart?
If not have you checked for spark e.g. by watching a timing light on each
plug lead? That will indicate whether it is HT or fuel. If fuel have you
removed the filler cap? If you get a 'whoosh' your emissions plumbing is
blocked, but if fully desmogged you should have a vented cap instead of the
unvented, which may have become blocked. Incidentally a small 'whoosh' is
normal with a vented cap as it should be spring-loaded to prevent leaks in a
roll-over.
But if you are getting spluttering and Dieseling it sounds more like lack of
sparks.
PaulH.
----- Original Message -----
From: Derek Vandivere <dersk@usa.net>
To: <mgs@autox.team.net>
Sent: Friday, December 07, 2001 11:00 AM
Subject: FW: Engine dies : 1978 MGB
> Currently having a problem with the engine sputtering
> and dying while driving along - very inconvenient. So
> here's the setup: desmogged 78 B, Weber downdraft
> carb, new fuel pump, clean fuel filter, new K&N
> airfilter.
etc.
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