Re: [FWDLK] Headlight Voltage Leakage ?

[Ron Waters <ronbo97@xxxxxxxxxxx>]

Thanks for the response, Dave.

In the course of testing, I swapped out the existing T3 headlights for a set 
of GEs that I planned to use on my 59 Dodge. I had the same results. Also 
disconnected one low beam, then the other, with no change.

Ron

----- Original Message ----- 
From: "David Homstad" <dhomstad@xxxxxxxxxxx>
To: "Ron Waters" <ronbo97@xxxxxxxxxxx>; <L-FORWARDLOOK@xxxxxxxxxxxxx>
Sent: Saturday, September 19, 2009 3:12 AM
Subject: RE: [FWDLK] Headlight Voltage Leakage ?


> Ron,
>
> After reviewing my 70 Olds Shop Manual, my guess is one of your low beam
> headlights has a broken high beam filament that is touching the low beam
> filament. This could allow some small current to flow to the high beam 
> side
> of the headlight, which is connected to all the other high beam terminals.
> You should be able to look into the headlight (when it is off) and see a
> broken filament.
>
> Another possibility is one of the low beam headlight connectors has an
> internal short that only makes a weak connection between the high & low
> sides when plugged onto a headlight.
>
> If there was a short circuit connection any place else, this symptom would
> appear even when the low beam lights were disconnected.
>
> Dave Homstad
> 56 Dodge D500
>
> -----Original Message-----
> From: Forward Look Mopar Discussion List
> [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of Ron Waters
> Sent: Friday, September 18, 2009 4:36 PM
> To: L-FORWARDLOOK@xxxxxxxxxxxxx
> Subject: Re: [FWDLK] Headlight Voltage Leakage ?
>
> That was my first thought. So I disassembled connectors and wire brushed
> metal contacts. Did the same where ground attaches to radiator support, as
> well as area of rad support that it attaches to.
>
> One thing I didn't make clear is that low beams work fine when high beam
> filament is glowing slightly. Also work when high beam circuit is 
> activated.
>
> Ron
>
> ----- Original Message -----
> From: "Jim Carpenter" <Jim@xxxxxxxxxxxxxxxxxxxxxxxx>
> To: "Ron Waters" <ronbo97@xxxxxxxxxxx>
> Sent: Friday, September 18, 2009 5:11 PM
> Subject: Re: [FWDLK] Headlight Voltage Leakage ?
>
>
> > You have a poor ground between the seal beam and the body.  The problem 
> > is
> > likely at the connector to the sealed beam or else where the headlight
> > wiring harness is grounded near the rad support.  Good luck.
> > Ron Waters wrote:
> > > Hi Gang -
> > >
> > > When I use my low beam headlights, there is some faint glowing of the
> > > filament on the high beams. Usually, I'm pretty good with electrical
> > > issues. But this one has me stumped. The high beam circuit works fine,
> > > btw.
> > >
> > > I checked all the grounds, cleaned connections and even jumped from the
> > > hot side of the high beam floor switch to the low beam circuit, thus
> > > removing the high beam circuit from the picture. When I disconnect both
> > > low beams, the faint glowing goes away. When I reconnect either low 
> > > beam,
> > > the glowing reappears in both high beams. I should mention that this is 
> > > a
> > > non-FL car--  1970 Olds Cutlass. But I'm sure what ever comes out of 
> > > this
> > > thread is applicable to any quad headlight system.
> > >
> > > Is it possible that a small amount of current is leaking thru the dual
> > > filament (low beam) headlights, thus lighting the high beams, since 
> > > there
> > > is a wire connecting both high and low beams ?
> > >
> > > Ron
> > >
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> > --
> >
> > *Jim Carpenter*
> >
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