[T3] 69 Master Cylinder?

Mike Fisher fisherfarms at gmail.com
Mon Sep 27 10:55:21 PDT 2021

Tram told me it fit good?  He puts them on his Mercedes restorations too.

On Mon, Sep 27, 2021 at 10:47 AM Jim Adney <jadney at vwtype3.org> wrote:

> On 27 Sep 2021 at 8:57, Mike Fisher wrote:
> > We put a new German ATE master cylinder on my '69 FI/AT square that fit.
> It certainly fits, but the key is getting it plumbed up right and getting
> the
> brake light and brake warning light working correctly is not as
> straigthforward
> as many have assumed.
> There are 2 different types of M10 x 1 tapped ports on these MCs: The
> three
> that feed the brakes at the wheels have ~1 mm restrictive drillings at the
> bottom, while the 2 for the brake light switches have ~3 mm holes, to make
> it
> easier to get more of the  air out of the switches. VW supplied a
> different
> hard line for the LF wheel when they introduced the late MC. That hard
> line
> feeds the LF wheel from the odd angled port that points down and to the
> right from the front of the MC. It may seem odd, but it's the correct way
> to do
> it.
> You can also reuse the early 2-pin brake light switches and eliminate the
> brake warning light. That light doesn't do much, so there's not much loss
> there, but I like to stick with VW's solution and enable the light.
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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Eugene, Oregon

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