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RE: Brake test switch and Logic

To: "'Rick Morrison'" <gofastmg@juno.com>, "'MG List'" <mgs@Autox.Team.Net>
Subject: RE: Brake test switch and Logic
From: DANIEL RAY <danray@bluegrass.net>
Date: Mon, 19 Jan 1998 22:36:07 -0600
Rick,
Gee....what a lovely "warning" system! Let's see, if I lose half, and =
still have braking, then the light warns me, if ALL the fluid goes bye =
bye, then I get no warning. Interesting....
Thanks for educating me. At least the little button I can press and =
light up will be impressive for simple-minded passengers!=20
If I had wanted a logical car, well, that's another thread altogether! I =
ain't no Vulcan!
Dan=20

----------
From:   Rick Morrison
Sent:   Monday, January 19, 1998 9:01 PM
To:     danray@bluegrass.net
Cc:     mgs@autox.team.net
Subject:        Re: Brake test switch

Dan,
  It only works if there is pressure on half the system. =20
 The switch is a pressure differential mechanism, so if you have 0
pressure in the whole system, the pressure is "equal" and the switch
doesn't light.
 Don't you just love the logic of these little beasties?

Rick Morrison
72 MGBGT
74 Midget

On Mon, 19 Jan 1998 10:48:52 -0600 DANIEL RAY <danray@bluegrass.net>
writes:
>Speaking of the Brake test switch, mine lights up fine when I push it,=20
>=3D
>but obviously isn't doing its job since I know there's no pressure in=20
>=3D
>the system -- its all going out the right rear brake assembly! Hmmm
>It IS supposed to light up when the pressure gets too low, right? Or=20
>is =3D
>there some sort of incantation required here?
>Dan
>'73 B
>
>----------
>From:  ken hedges
>Sent:  Saturday, January 17, 1998 12:42 PM
>To:    mgs@autox.team.net
>Subject:       Brake test switch
>
>Can anyone shed any light on the brake test lamp / switch on a 75B.
>
>Mine needless to say is not working, but I also notice that is a =3D
>different
>type from my 70 parts (project) car.
>
>The switch on the 75 does not move, and apears to be just to be a=20
>lamp, =3D
>and
>I would guess to monitor the the brake master cylinder.
>
>Also with the weird spring arrangement that holds this lamp (switch)=20
>in =3D
>the
>dash, is there a easy way of removing the it.
>
>Not a big problem, but I would like to get it working.
>
>
>
>
>
>




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