<div dir="ltr"><div> Once I know I can open the bleeders and they flow meaning I see fluid drip out then close them one at a time. I'll do some rapid pumps with all the bleeders closed then just do half travel pedal push , maybe place something under the brake pedal on the floor to limit its travel. The last thing I want to do is damage anything in the master. <br></div><div><br></div><div> I understand feeling the pedal end of travel , Once I find it then place something to stop the pedal from reaching that point. doing rapid pumps it is difficult to feel the end of travel. I would think driving it in stop and go all the time would break up any junk . I guess I,ll get the bleeders loose , open the bottom caliper bleeder then do a few pumps to get that out then use the top bleeder to do the fluid change and if i see a lot of crud do it a few times and just do 5 pumps each time. I can always drive it and do it again. <br> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 30, 2022 at 7:53 PM Jim Adney <<a href="mailto:jadney@vwtype3.org">jadney@vwtype3.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 30 Aug 2022 at 15:26, William Jahn wrote:<br>
<br>
> I'm confused on this part<br>
> <br>
> " One caveat: When the hydraulics are empty, it's possible to run the<br>
> pistons in the master cylinder into the end of their travel. If you do this<br>
> hard, it may be possible to damage something. I recommend a few cautious<br>
> strokes first, to find the end of travel and avoid it thereafter. <br>
> <br>
> I am changing out the old fluid so I assume the hydraulics or lines are<br>
> not empty. Wouldn't this only apply if I replaced lines or calipers and let<br>
> all the fluid drain out?<br>
<br>
Even if the system is filled with fluid, the MC pistons can reach the end of <br>
travel if a bleed valve is open. Granted, it's harder to develop as much force <br>
as when it's filled with air, but why take a chance.<br>
<br>
-- <br>
*******************************<br>
Jim Adney, <a href="mailto:jadney@vwtype3.org" target="_blank">jadney@vwtype3.org</a><br>
Madison, Wisconsin, USA<br>
*******************************<br>
<br>
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