Funny how topics always seem to come up at just the right time! I was
poking around under the hood of my 78B last week and found the wires for
the brake warning lamp disconnected from the m/c. Judging from the way it
was neatly concealed, it was probably disconnected and hidden on purpose by
a DPO. Upon plugging it back in, the brake light came on and stayed on
with the engine running. The m/c was replaced by a (I think) reputable
local British car shop right before I bought the car last summer. They
also bled the brake lines. In one of my manuals (Haynes, I think), I saw a
brief paragraph about bleeding the brakes while watching the warning lamp
to equalize the pressure (thereby shutting off the switch). Is this the
likely solution to the problem? If so, is it really as simple as the
manual makes it sound?
For what it's worth, the brakes sure seem to work well.
Thanks!
Scott McKorkle
Issaquah, WA
1978 MGB
----------
> From: ROBERT G. HOWARD <mgbob@juno.com>
> To: ame@synaptics.com
> Cc: mgs@autox.team.net
> Subject: Re: Brake Warning Lamp
> Date: Wednesday, March 18, 1998 7:20 AM
>
> Hi Andy,
> The purpose of the lamp is to let you know if one section of the
> two-section brake system becomes inoperative. If that happens, the
> pressure on one side of the (missing) switch would be 0 and the other
> side would be full brake fluid pressure. Only the section with full
> pressure will have working brakes.
> It's your choice now as to the value of the switch.
> Speaking as one who has lost the brakes twice on a TD, which does not
> have the dual section arrangment, I would reinstall the switch.
> Bob
>
> On Tue, 17 Mar 98 14:50:24 Pst ame@synaptics.com writes:
> > Hi,
> >
> > someone recently posted an interest point, viz. you could use the
> >
> > overdrive stalk to control a set of driving lamps (if you didn't
> >have
> > an overdrive).
> >
> > On my '69 Roadster I have a brake warning lamp/test switch in the
> >
> > upper left of the dashboard. The brake pressure switch has been
> > removed from the pipe union in the engine compartment, so the
> >switch
> > and lamp do nothing right now.
> >
> > My first question is, is it sensible/worthwhile to refit a
> >pressure
> > warning switch as orginally intended? If not, my second question
> >is,
> > does anyone have an alternative and innovative use for the lamp
> >and
> > switch which is so conveniently placed on the dash?
> >
> > Andy
> > --
> > '69 Roadster (with one new rear wheel and hub (don't ask))
> >
> >
>
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