Evangelos:
The dual line brake master requires a larger mounting hole and the
slightly tipped later clutch master cylinder.
It's not going to be an easy conversion unless you can source a used
pedal box.
You will also need the pushrod, banjo and banjo bolt for the rear
outlet. These all come on some versions of the new master, but not all.
The brake pedal is the same.
This conversion is common in the US as many vintage racing groups require a
dual brake system.
Kelvin.
> My 73 LHD Euro-spec MGBGT has the old single-line brake
> master cylinder
> with the rectangular opaque metallic fluid container. This master
> cylinder is about to give up the ghost.
>
> Leafing through the American MGB Parts List by Moss Motors,
> USA, I came
> upon a "dual-line non-servo" master cylinder, part # 180-765
> that looks
> like it can be put in place of the old single line m/c,
> because it, too,
> has a vertical mounting flange.
>
> This m/c sports a large cylindrical inclined translucent plastic fluid
> container and is nowhere mentioned in the European MGB Parts List by
> Moss UK, even though 74-on LHD cars destined for some
> European countries
> had it!
>
> Is the mounting hole distance and rubber boot diameter the same as the
> old one?
> Shall I have to get the # 181-695 push rod for this new m/c or use the
> one from the old? A new brake pedal perhaps? I can DIY all the extra
> plumbing easily.
>
> Cheers
> Evangelos
> 73 BGT
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