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Re: Flickering Ignition light

To: "Steve Gorr" <>, "MG list" <>
Subject: Re: Flickering Ignition light
From: "MonteMorris" <>
Date: Sun, 17 Jul 2005 11:55:12 -0500
Steve et al,
I had a problem with this once and I did two things that corrected it, I'm
not sure which one was causing it but they were: tightened the belt,
replaced a leaky/noisy water pump.
I know the belt could cause the problem, but if the bearings were going out
on the water pump could it have caused the faint blinking of the alt light?

----- Original Message ----- 
From: "Steve Gorr" <>
To: "MG list" <>
Sent: Saturday, July 16, 2005 10:51 PM
Subject: Flickering Ignition light

> So the 78 B and I head up to the BRIC race weekend at Road America and on
> way the ignition light goes on. The roadside check shows I'm getting 14.3v
> the battery. I cleaned the contacts on the alternator but the light
> Doesn't seem to be losing any charge after several days driving. Starts
out in
> the morning with just a faint, pulsating flicker. Pulsing snot affected by
> load but the higher the revs the brighter it gets. Finally, when fully
> warmed/hot the light is on constantly but a bit dimmer than at "bulb
> time. Perhaps one of the 3 diodes is shot?
> What is the list's collective wisdom? Rebuild the alternator, replace it
> another Lucas unit, or get one of those Bosch units I've heard of? If the
> Bosch is supposed to be better, which one do I go looking for?
> Steve Gorr
> 78 MGB, Carmine

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