Paul,
Could you explain how you set up the relay, I have a similar problem. Would
like to get the horns working!!
Safety Fast
Ross Overcash,74B,NAMGBR 2-1172
Ayer, MA
http://home.earthlink.net/~jroverca/index.html
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of Paul Hunt
> Sent: Friday, April 14, 2000 3:22 PM
> To: Karl Shultz; mgs@autox.team.net
> Subject: Re: Missing: horn on 73 B
>
>
> The horns work off the purple circuit (fused, always hot, bottom
> fuse in the
> 4-way block), the horn button sends a ground via the purple/black. You
> should ideally see a full 12v on the purple at all times, perhaps a little
> lower when the horns are sounding but not much. If it is much
> less you have
> bad connections in the purple circuit. If the interior lights dims
> significantly when the horn sounds it is probably a corroded fuse/holder.
>
> You should see 12v on the purple/black when the horns are silent, and
> ideally a full ground when they are sounding. However steering column
> grounds can be a problem, I opted to use a relay on my 75 V8 as there just
> wasn't enough current available through the column to operate one horn let
> alone two.
>
> PaulH.
>
> ----- Original Message -----
> From: Karl Shultz <karl.shultz@ibm.net>
> To: <mgs@autox.team.net>
> Sent: Thursday, April 13, 2000 5:58 PM
> Subject: Missing: horn on 73 B
>
>
> > Hi all, been lurking for a *long* time now while the B, sadly, stayed
> > parked with a ton of ignition problems. Finally those are sorted out
> > and the car is running great. Sunny day - oh, so *that's* why I bought
> > it! Anyhow, I'm hoping someone can help me troubleshoot my horn - the
> > last thing that needs fixed before it'll pass inspection. Here's the
> > story.
> >
> > When I bought the car only one of the two horns worked (low note I
> > believe) which didn't bother me. About a year ago I'm driving around
> > with the top down and we get one of those mid-afternoon North Carolina
> > thunderstorms. It starts to really pour so I pull into the gas station,
> > turn off the car and put the top up. Start the car to leave, and both
> > horns (low note and high note) are blaring non-stop, without me touching
> > the button. So that was kind of painful driving around like that. Get
> > back to house, turn off car and go inside.
> >
> > The next day - start car, horn isn't blowing. This is good. So I hit
> > the horn button, and both horns (lo and hi) come on. Sweet!, I'm
> > thinking, it's fixed. Well, not so fast. One day later, start the car
> > to go to work, hit horn button...and there's nobody home at all, neither
> > horn does anything. Doh!
> >
> > I've done the requisite checks with the test light at the pencil switch
> > on the steering wheel and at the horns - nothing. Any ideas? Is there
> > a fuse buried somewhere that I haven't seen yet? Any info would be
> > highly appreciated - the car's been parked for almost a year now and I'd
> > really like it to be legal.
> >
> > --
> > Karl Shultz
> > Tarheel Sports Car Club - www.thscc.com
> > 95 Integra GS-R, STR/DSP #78
> > 73 MGB, it's alive, but not legal yet...
> >
> >
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