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Re: Headlights affects gauges

To: jmerone@vtetv.org
Subject: Re: Headlights affects gauges
From: lmdpth@lmd.ericsson.se (LMD/T/TB Peter Thorsen)
Date: Tue, 24 Sep 1996 08:42:12 +0200
Cc: triumphs@autox.team.net
Hi Joe, 

> I'm not sure about Spitfires but my TR6 had the same problem that also
> included an obvious voltage drop on the meter when the lights were turned on.
>  If your's is so equipped, make sure that the negative battery cable is
> grounded to both the engine AND the body of the car at the appropriate places
> on the cable.  13+ volts all the time after that little discovery.

This is interesting. Some weeks ago (before my problem occured) I changed the
grounding. I think it was still OK, but it looked very tired. There were two 
cables,
one from the engine to the negative terminal and one from the body to somewhere
around the middle of the first cable.


Engine-------------------------N terminal
                   |
                   |
Body----------------

As the new cable I bought was isolated I modified the configuration a little:

Engine-------------------------N terminal
      |
      ------|
Body---------

I am not an electrical engineer, but I believe these two configurations to
be equivalent. Or so I did... Anyway I'll try to fiddle a little with them
to see if it makes any difference. It might also be a bad connection some-
where.

Thanks for your suggestion, I'll report back if (when) I make progress.

 - Peter

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