<div dir="auto">Aren't the brakes split diagonally, not front/rear?</div><br><div class="gmail_quote"><div dir="ltr">On Tue, Jun 5, 2018, 12:45 AM PaulHunt73 <<a href="mailto:paulhunt73@virginmedia.com">paulhunt73@virginmedia.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Possibly, but you can't discount the brakes. If it's the rear circuit that <br>
has the problem then it would barely be noticeable in driving.<br>
<br>
Firstly disconnect the wiring from the switch and if the warning light goes <br>
out it is a brake or switch problem, and not wiring. If it stays on it's <br>
wiring, although from 76 on the same warning lamp also comes on with the <br>
handbrake.<br>
<br>
If it is brake or switch pre 76 to centralise the switch you have to open <br>
the good circuit and operate the brakes slowly to move the shuttle valve <br>
across until the light goes out, and if you keep pressing it will come back <br>
on again when the shuttle valve has moved to the other side. However if the <br>
light stays on all the time you still don't really know if it is a switch or <br>
brake problem, except that if it is the brakes you should be losing fluid <br>
from somewhere.<br>
<br>
77 and later you can partially unscrew the switch and it should recentralise <br>
automatically i.e. the light goes out. If it doesn't go out then it's <br>
probably the switch.<br>
<br>
PaulH.<br>
<br>
----- Original Message ----- <br>
<br>
> My daughter's MGB is showing the brake pressure balance switch on all<br>
> the time. Is it likely that the switch is broken and not a real<br>
> problem with the brakes?<br>
> <br>
</blockquote></div>