This test is showing the operating of the voltage stabiliser, which only
feeds the fuel and electric temp gauges, and cannot affect the lights,
heater fan etc of the original poster. (A simpler and safer test of this
component is to connect a voltmeter to the light-green/green wire from
stabilser to gauges, by the way, and look for 12v switching on and off a
couple of times a second). The voltage regulator on the alternator can fail
and cause over-voltage on the system, which can blow bulbs etc but the
original posters problem was these items going intermittent, which is simply
bad connections. (Again the correct way to test the voltage regulator is
with a voltmeter on a brown circuit with the engine running at fast idle -
you should see about 14v.) With intermittent components you have to go
along the circuits, ideally with a test-lamp rather than a voltmeter, when
the fault is apparent, of course.
PaulH.
----- Original Message -----
From: <Duinhoven_Hans@emc.com>
To: <eric@erickson.on.net>; <mgs@autox.team.net>
Sent: Thursday, July 27, 2000 1:29 PM
Subject: RE: MG Electrics
> How to check the regulator:
> remove a coil lead
> attach a amp meter in series with the battery
> switch on your contact DO NOT ATTEMPT TO START!
>
> After a while the ammeter will indicate more - less current going.
> This is done by the voltage regulator and indicates good functionality
>
> Cheers,
>
> Hans
>
> -----Original Message-----
> From: Eric [mailto:eric@erickson.on.net]
> Sent: donderdag 27 juli 2000 22:36
> To: mgs@autox.team.net
> Subject: Re: MG Electrics
>
>
> And I will add... PLEASE check your voltage regulator. Related to this
> list last year I first noticed that a low-beam headlight went out...
> then both... then tail lights (high beam still worked - you don't use
> them much, you see). When I got everything checked out I found the
> voltage regulator had fried itself and I was feeding full voltage, of
> course high voltage when driving, into these 12 volt devices.
>
> The end result was replacing all lamps and lamp holders and probably a
> shortened life for a lot of wiring that isn't playing up... yet.
>
> Oh yeah, and a fried battery which has just now died much earlier than
> it should have done.
>
> I repeat the call to "check your voltage regulator"... just in case :-)
>
>
> Eric
>
>
>
>
> frank krajewski wrote:
> >
> > Mike: Check your voltage stabilizer.
> > Frank "Swamp Yankee" Krajewski
> > http://www.bmcne.com
> >
> > Mike Razor wrote:
> >
> > > Wow! What can happen with MG electrics. Did not have turn signals or
> > > four way hazard flashers, only two of the four parking lights worked,
> > > one fore and one aft on opposite ends of the car, left front and right
> > > rear. Heater fan motor was working, but quit just prior to
> > > installing a new four way flasher switch. Still no workee, drive
> > > around and out of habit hit the turn signal, and they both start to
> > > work, heater fan motor starts to work. Still no fore and aft parking
> > > light and now no gauge lights, but got headlights and turn signals
> > > Mike R
>
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