You need a master cylinder. Thats it short and sweet.
When you install it be sure you get all of the brake fluid out of your
vacume booster, use rags, suction and then clean it with alcohol.
Change to DOT4 brake fluid and bleed the complete system and clutch
slave.
I just did this job last week on an 81 Westy.

Stan Wilder
83 Westfalia Air Cooled

On Wed, 15 Aug 2001 15:26:45 -0700 Steven Edmundson
<stevo@SPRINTMAIL.COM> writes:
> Van: `82 Vanagon Westfalia
> Prob: Brake pedal goes to the floor when trying to stop
>
> Ever since I got the van the pedal would SLOWLY make it's way to the
> floor if preasure was not kept on it at a stop. Yeah, yeah, I SHOULD
> have fixed it long ago but I didn't. Now when I push the pedal it
> rapidly falls to the floor a the while making a kind of wooshing
> sound
> (like brake fluid being pushed through a valve) coming from the
> master
> cylinder.There is no brake fluid leaking from anywhere that i can
> see.
> I'm guessing that the master cylinder is in serious need of a
> rebuilding
> but wanted to get some opinions first. Tell me what you think.
>
>
> PS. I tried to use the search function but it was just taking WAY to
> long (20 min and going).
> _______
>
> Stevo
>
> My `97 GTI
> <http://albums.photopoint.com/j/AlbumIndex?u=1497939&a=12321481&f=0>
>

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