[Vwdiesel] brake master cylinder adaptor

[David Cook]

Hi Paul-

Here is the one I purchased (and later modified to fit
the smaller beetle brake res cap):

http://germanautoparts.com/tools

And here is the best how-to on making your own that
I've found:

http://www.bmw-m.net/TechProc/bleeder.htm

I used the tire valve in place of the hose fitting
seen in photos 5 and 6 of this page.

I started with the motive bleeder seen on the first
link and just used the tire valve and smaller cap to
bleed the beetle's brakes.  I just swap on whatever
cap goes with whatever I want to bleed.

The fluid actually goes in the bleeder or the weed
sprayer, then the pressure forces it out and through
the tube and through the valve into the brake
reservoir and through there to the rest of the system.

I just pump the pressure up to 15-20 lbs and then open
the bleeder valves in that same furthes to closest
order I mentioned earlier, one at a time.  Open one
until nothing but bubble and dirt free clean fluid
comes out (Use another clear tube on the valve going
to a jar or soda bottle), then close that valve and
move to the next.

David

--- paul lew <biovolks at yahoo.com> wrote:

>   I think I'm picturing right how to build it, but
> does somebody have a picture of it, and instructions
> on how to use it? are you pumping fluid through that
> valve? opening each bleeder individually? same
> procedure for manual bleed ? 
>   Thanks
>   Paul
>    
>    
>   Here is a picture of one very similar to what I
> purchased.
> 
> http://tinyurl.com/2bkefo
> 
> You can see that there is a nut and washer, those
> would go on top of the brake res cap, and the rubber
> part would go under it.
> 
> Remember, you'll need to remove the valve core. The
> place I bought mine from allowed me to use a tool to
> do it there in the store when I bought it. It is a
> simple tool that sticks down in the valve to simply
> unscrew the core.
> 
> David
> 
> 
> --- James Hansen wrote:
> 
> > You would be looking for a valve stem for an
> > industrial tubless tire, or 
> > a tubeless truck rim. Normal tubeless tires have
> > valve stems that just 
> > pull in to be installed, sort of a grommet affair.
> 
> > These install by 
> > inserting from the tire side of the rim, and
> > threading a nut down the 
> > valve stem that protrudes through the rim,
> smooshing
> > it together and 
> > sealing the air in, and being more resisitant to
> > getting torn off is you 
> > get stuck.
> > -J
> > 
> > David Cook wrote:
> > > I'm not sure what is used for a child's cycle
> > tube. 
> > > 
> > > At the local FLAPS, they had a replacement tire
> > valve
> > > stem that instead of being held to the rim by
> the
> > > rubber on both sides, the outside half has
> threads
> > and
> > > a nut which compress the inside (of the rim)
> part
> > of
> > > the valve stem to the inside of the rim.
> > > 
> > > David
> > > 
> > > --- The President 
> > wrote:
> > > 
> > >> "used a tire wheel stem. One that had a nut to
> > >> squeeze the inside rubber against the rim."
> > >>
> > >> David that's a goliath of a tip :o)
> > >>
> > >> So you mean one of a child's cycle tube for
> > >> instance...
> > >>
> > >> Mark
> > >>
> > >>> From: David Cook 
> > >>> To: Dave Heart , diesel
> > >> list 
> > >>> Subject: Re: [Vwdiesel] Rabbit Brake Master
> > >> Cylinder
> > >>> Date: Thu, 23 Aug 2007 11:41:57 -0700 (PDT)
> > >>>
> > >>> Yeah, you'll need to bleed at each wheel.
> Start
> > >> from
> > >>> the furthest from the MC and work to closest. 
> > So,
> > >>> rear pass, rear driver front pass, front
> driver.
> > >>>
> > >>> Making or buying a pressure bleeder is so
> > >> incredibly
> > >>> handy, you wouldn't believe. I was working on
> a
> > >>> beetle's brakes and we were doing it the old
> > >> fashioned
> > >>> way. After nearly no luck getting the air out,
> > I
> > >> used
> > >>> an old brake fluid cap to make an adapter for
> > the
> > >>> beetle's reservoir and hook the bleeder up to
> > that.
> > >>> Getting the air out after that was almost
> > magical.
> > >>>
> > >>> To make the adapter, I just drilled a hole in
> > the
> > >> cap
> > >>> and used a tire wheel stem. One that had a nut
> > to
> > >>> squeeze the inside rubber against the rim.
> Just
> > >>> installed the wheel stem on the cap similar to
> > how
> > >> it
> > >>> would be installed on the wheel and hooked up
> > the
> > >> hose
> > >>> with a clamp.
> > >>>
> > >>> Oh, you will need to remove the valve core
> from
> > the
> > >>> stem.
> > >>>
> > >>> I found that to be easier than finding the
> parts
> > >> that
> > >>> are recommended on the build your own bleeder
> > >> sites.
> > >>> David
> > >>>
> > >>>
> > >>> --- Dave Heart wrote:
> > >>>> Thanks David. Good idea. When bleeding this
> way
> > >> need
> > >>>> to do at each wheel? Any sequence?
> > >>>>
> > >>> VW Parts for sale!
> > >>>
> http://community.webshots.com/user/superdave5599
> > >>>
> > >>>
> > >>>
> > >>
> >
> 
> 
>        
> ---------------------------------
> Fussy? Opinionated? Impossible to please? Perfect. 
> Join Yahoo!'s user panel and lay it on us.
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
> 


VW Parts for sale!
http://community.webshots.com/user/superdave5599


       
____________________________________________________________________________________
Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. 
http://answers.yahoo.com/dir/?link=list&sid=396545433