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Brake line layout with dual master cylinder

letemglow

Freshman Member
Offline
Hi MG enthusiasts,

I am working on an MG B where all of its break lines had been taken out previously. This car is equipped with a dual master cylinder but without servo. I am at a loss which is supposed the front and rear connection at the master cylinder for the corresponding brake lines. My shop manual doesn't show those details.

Does anyone know?

Thanks Dieter
 
Like this?

mc.jpg
 
Yes, this is the same master cylinder I have. Is the brake line taken off the banjo going to the rear cylinders or front calipers?

Thsnks,

Dieter
 
In North America, our brake system has a pressure failure switch. The pipes from the master cylinder go to this brass fitting with switch.

The attached photo (not mine, but borrowed somewhere) illustrates the piping. The photo is low resolution, but should provide the routing.
Engine bay with brake pipes008.jpg
 
Here's another (borrowed) shot of an engine bay.

This MGB has unconventional routing from the brake pressure switch to the front calipres.
Engine bay with brake pipes011.jpg
 
I am aware that US models have a brake pressure switch, but there is none for Europe. The brake lines go directly from the master cylinder to the respective wheels. Nevertheless, how is the routing to and from the pressure switch then?

I.e. the banjo connection at the master going first to the "two" or the "three way" union of the pressure switch? I assume that the pressure switches "two" way union would continue to the rear brakes whereas the pressure switches "three" way union would split the brakes lines for connecting to the two front calipers.
 
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