[T3] 69 Master Cylinder?

Mike Fisher fisherfarms at gmail.com
Mon Sep 27 08:57:48 PDT 2021

We put a new German ATE master cylinder on my '69 FI/AT square that fit.

On Mon, Sep 27, 2021 at 8:36 AM Jim Adney <jadney at vwtype3.org> wrote:

> On 26 Sep 2021 at 20:32, Jeff Palmer wrote:
> > We have replaced the brake lines but found the master cylinder leaking,
> > and internally itTMs pitted pretty badly.
> I regularly rebuild our MCs, but there is a problem with the original
> '68-9 MC
> design. The original part had a double bore, shown in the Bentley manual,
> that added a shuttle piston to actuate the brake warning light. This bore
> rusts
> and is impossible to clean, because it's so small. Also, replacement seals
> are NLA.
> The best solution is to replace with a late style MC, as introduced in
> late '71.
> Those can still be found online or on ebay. While expensive, it's a much
> better solution than trying to stick with the '68-9 version.
> To install the late version, you will also need to replace your early
> 2-pin
> brake light switches with the later 3-pin switches, the brake light wiring
> harness with a harness from a '70-3 harness, and the hard line to the RF
> caliper.
> I have the late MC, the late switches, and the late hard line, but I've
> sold all
> the late wiring harnesses that I once had. If you can find a late parts
> car
> anywhere, that harness should be there. Unfortunately, shipping prices
> between Canada and the US are rediculous, so you should probably try to
> find replacements in Canada.
> Good luck getting your '69 AT Notch back on the road. Is it still FI? I
> don't
> know if they were, in Canada, or wherever this car originally came from.
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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Eugene, Oregon

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