[T3] Brake Hints!

[William Jahn]

This is one of the best you tube videos I watched
https://www.youtube.com/watch?v=V5O_pbC8R2E.

 Let me know what you think .

On Tue, Aug 30, 2022 at 12:06 PM Jim Adney <jadney at vwtype3.org> wrote:

> On 30 Aug 2022 at 10:26, William Jahn wrote:
>
> > How does the brake fluid change process using DOT 3 or 4 differ?
>
> No change.
>
> > I'm not using DOT 5. I've never done one person bleeding before it was
> always
> > a second person pumping the pedal and me working the bleeders.
>
> For some reason, slow pumping with 2 people is the way everyone gets
> taught to do it. It works, but it takes 2 people and a lot of time. People
> seem
> to think that there's a big advantage to not drawing in air on the
> upstroke, but
> once you watch while someone is pumping, you realize that air redraw is a
> non-issue.
>
> > I've watched many videos showing this procedure and granted they are now
> > VW specific other than one for Mercedes which was light pumps gravity
> > bleed.
>
> ATe (Alfred Teves) made most of the brake components for both VW and
> M-B, as well as many other Euro makes. None of them require or benefit
> from different techniques.
>
> > I understand how the rapid pump churns up old fluid and crud. I've just
> > never seen anyone do it or mention it.
>
> My opinion: Most writeups we come across were done by people who never
> did any of this work themselves. They are writers, not mechanics. They
> have
> just read other books and are repeating the methods they have read in
> other
> places, using their own words, of course. Most mechanics get taught the
> same method you're familiar with. Few question it or try anything
> different.
>
> One caveat: When the hydraulics are empty, it's possible to run the
> pistons
> in the master cylinder into the end of their travel. If you do this hard,
> it may
> be possible to damage something. I recommend a few cautious strokes first,
> to find the end of travel and avoid it thereafter.
>
> Once one circuit on a tandem system is bled, there will be a new, reduced,
> end of travel. At that point, you'll need to find the new limit and
> further
> restrict the later strokes.
>
> Once all the flushing is done, you can return to a slow stroke or just
> gravity
> bleeding to get any remaining air out.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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