Brake Lights/1960?

["Dave & Tracy" <dave-tracy.sherratt@xxxxxxxxxxxx>]

Fixed it, all that it was the push rod needing adjustment ! so the switch
was not getting enough pressure to activate it properly, so D2 was right
about the engine revs pulling the vac & master cylinder. etc.
Dave , ( now with some wicked brakes )
----- Original Message -----
From: "Dave & Tracy" <dave-tracy.sherratt@xxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Wednesday, September 08, 2004 8:15 AM
Subject: Re: IML: Brake Lights/1960?


> Can modern brake fluid cause the switch to break down ? I find it hard to
> believe that  a newish switch should break down in such a short time.
> Dave.
> ----- Original Message -----
> From: <RandalPark@xxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Wednesday, September 08, 2004 3:43 AM
> Subject: Re: IML: Brake Lights/1960?
>
>
> > Actually, that is interesting and a very good point. The extra vacuum
> could explain a reason why reving the engine could have an effect.
> >
> > Paul
> >
> > In a message dated 9/7/2004 8:47:54 PM Eastern Daylight Time,
> dardal@xxxxxxxxxxxxxxx writes:
> >
> > >Quoting RandalPark@xxxxxxx:
> > >
> > >> to work, or it will fail completely. In any case, engine RPMs should
> not have
> > >> an effect. I suppose that an imperfect connection within the switch
> could be
> > >> strengthened with a brief electrical surge, but that seems a little
far
> > >> fetched.
> > >
> > >Paul, the connection to revving the engine may be from the vacuum
vreated
> when
> > >you let off the throttle. As the booster is vacuum operated, a
temporary
> > >increasein vacuum could pull the M/C a bit more.
> > >
> > >The brake switch of my 68 LeBaron used to not be very well adjusted,
> right after
> > >I replaced it (this is not pressure activated, but pedal activated). I
> recall,
> > >when I revved the engine at idle w/out touching the brakes, the lights
> would
> > >come on. THe reason was the increased vacuum pulled the brake pedal
just
> a
> > >hair. I ended up replacing the booster on this car, I do not remember
if
> I
> > >replaced it after or before that incident. After I readjusted the
switch,
> the
> > >problem was solved. I don't think this fix can be done or on the 60
year
> > >model, of course, I just mention it because I think its interesting.
> > >
> > >D^2
> > >
> > >
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