I tend to agree it most likely is a bad or dirty connection. I doubt
that the air filter had been changed in at least 10 years. The
battery had been replaced in 1988 if this is any indication of the
attention or lack there of the old car had before I got it. I have
been chasing electrical faults since I got it this spring and from the
look of the wiring it has been really abused.
THANKS!
MIKE R
----- Original Message -----
From: <Ajhsys@aol.com>
To: <mrazor@mis.net>; <mgs@autox.team.net>
Sent: Thursday, August 24, 2000 10:19 PM
Subject: Re: MGB Runs/Does Not Run
> In a message dated 08/24/2000 5:57:15 PM Eastern Daylight Time,
> mrazor@mis.net writes:
>
> << It is a 78 MGB with a Zenith carb. New plugs, plug wires, new
> battery, lots of electrical faults. That is what is acts like, a
> short in the system somewhere, except for the rough idle. May have
> found part of the problem with the rough idle, the air filter is
old,
> I mean old and clogged. Pulled it out and the car idles much
better,
> going to have to get new one. Wonder how much the voltage
regulator
> has to do with this one problem. >>
>
> - - - - - - - - - - - -
>
> I guess that a faulty regulator could contribute to the problem, but
the coil
> should be able to overcome some low voltage situations that it would
cause.
> More frequently when a voltage reg. is bad, the battery won't charge
as the
> first symptom.
>
> If your car is fitted with an electronic ignition, I would consider
that it
> may be the cause of the intermittent running.
>
> I agree with the others, clean every contact in the ignition system
you can
> find. The green corrosion is a very effective insulator. And that
is the
> cheapest thing to try. If the air filter was as bad as you say,
there are
> probably bad connections to clean.
>
> My '77 Midget would start one day, and not the next. There was no
spark at
> the plugs on the bad days. I cleaned everything and it got a little
better.
> Then I installed a new Pertronix Ignitor (Thanks Kevin) and it
starts every
> time.
>
> Allen Hefner
> Philly Region SCCA Rally Steward
> '77 Midget
> '92 Mitsubishi Expo LRV Sport
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