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Re: no headlights

To: Paul Hunt <>
Subject: Re: no headlights
From: dave houser <>
Date: Thu, 06 Jul 2006 14:33:16 -0400
Good Folks,
Mystery of no headlights solved! When up at MG2006, I had the Brake 
master replaced on the 67 BGT. while under the dash tightening the bolt 
behind the firewall on the MC, the mechanic must have pulled the blue 
wires in the lucas connector apart. I found that after checking why no 
current was getting to the headlights. Thank goodness for a simple fix! 
and thanks for all your reponses.
Dave Houser

Paul Hunt wrote:

>Usually there is only one for both headlights and this is by the fusebox.
>That same ground is shared with the alternator, control box, wipers, and a
>whole host of other things on a 67 so the ground itself is unlikely to be
>the problem as that would cause all sorts of funny interactions between
>circuits, and seeing how it does everything it could well be behind the
>dash.  If both sides on both beams are affected, and the main beam tell-tale
>glows brightly when the headlamps don't, then it is probably the 4-way
>bullet connector by the right-hand headlight.  If the tell-tale doesn't glow
>at full brilliance either then it is probably the dip-switch.  Of course a
>short-circuit somewhere can cause melted connectors as well as dim or
>extinguished bulbs.  Normally this would smoke the wiring, but if you have a
>'weak link' elsewhere in the circuit like an iffy connector or dodgy switch
>this is more likely to fail which saves the wiring.  Easiest thing to do is
>power them up then track the voltage through the main lighting switch,
>dip-switch, coloured connectors by the right and left headlamps (all
>bullets, not just one), black connectors (ditto) by the left and right
>headlamps.  You should see 12v on the coloured wires and 0v on the black.
>----- Original Message ----- 
>>Pretty sure it's a ground somewhere. Did notice that the passenger
>>headlight plastic three prong connector where the bulb plugs into was
>>melted!  Driver's side connector ok. I am running Hella Halogen H4's. I
>>have a 96 amp alt. installed.
>>Checked the 3-wire ground connector above the oil cooler under the front
>>cross brace. Seemed ok. Where are the other ground connections for the
>>headlight circuit?

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