[T3] I want to change my brake fluid it's been a while? 73 SB

[William J]

Just so I've got this right. If I remove most of the fluid from the 
reservoir then strarting with the right front caliper I should open the 
lower bleeder  and this will gravity drain all the fluid from both pistons 
or do I need to also open the top bleeder and of course maintain the 
reservoir level ? Then do the left front then R rear the L rear each one at 
a time? So if I keep the reservoir full this will not only flush or drain 
out all the old fluid and also not introduce air into the system ? I'm 
calling this drain/ gravity bleed , I have the time. If for some reason air 
is introduced then I go to the hose and jar method ? I have read that  air 
can be pulled in through the bleeder screw threads or is this only an issue 
if one backs out the bleeders more than cracking them say a 1/4 or 1/2 turn.

William
----- Original Message ----- 
From: "Dave Hall" <dave at hallvw.clara.co.uk>
To: <type3 at vwtype3.org>
Sent: Friday, May 13, 2016 5:30 AM
Subject: Re: [T3] I want to change my brake fluid it's been a while? 73 SB


> I've a simple piece of rubber pressure tubing that has a screw in the 
> lower
> end, and a slit cut with a Stanley knife (eg) which fits on a bleed screw
> and acts as a one way valve.  Press on the pedal and the fluid squirts out
> of the slit, without allowing air back in.  Good for single-handed 
> bleeding,
> but rather slow for changing fluid.
>
> Dave
> UK VW Type 3&4 Club
> ===================
>
>
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