Hey Kim, you might simply have an air bubble in there.

On Fri, Jul 31, 2009 at 11:29 PM, Kim Brennan <kimbrennan@mac.com> wrote:

> Yep. I had a friend put his hand on it while I pumped the pedal and it
> is definitely the source of the noise. Maybe I'll take a trip out to
> Mark I VW and see if I can get one off of his parts Vans...
>
> On Jul 31, 2009, at 8:32 PM, Scott Daniel - Turbovans wrote:
>
>  'pressure reducer device' ........
>> that brake pressure limiter thing under the right front, up in there ?
>>
>> If that's the part you mean.......be very surprising if it's the
>> source of a
>> noise.
>> If I thought that, I'd just pop on a used one.
>> I have many of them, on parts vans.
>>
>> I have also purchased and installed an adjustable one .......a
>> racing part.
>> for a rear disc brake SVX Syncro vanagon. That's one way to get a
>> new one.
>> I rigged that one so I could reach in the right front wheel well,
>> and turn
>> the bias adjustment on it.
>> Scott
>> www.turbovan.com
>>
>>
>>
>> ----- Original Message -----
>> From: "Kim Brennan" <kimbrennan@MAC.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Friday, July 31, 2009 3:57 PM
>> Subject: Re: Brakes, reprise
>>
>>
>>  Brand new master cylinder and o-ring. No sign of brake fluid in the
>>> booster (though I have one available to put in if thats the problem.)
>>> I'm really tending to think that the noise is from the pressure
>>> reducer device. Which is NLA of course. Van-Cafe is temporarly out of
>>> used ones, though they expect a couple in next week.
>>>
>>> I like how Van-cafe says, "rarely fails, but NLA new" in the
>>> description for their used ones. Sort of a critical part to the
>>> brakes. Oh, well, the price of an 18 year old vehicle...
>>>
>>>
>>> On Jul 31, 2009, at 6:35 PM, Scott Daniel - Turbovans wrote:
>>>
>>>  I'd check the o-ring that's between the master cylinder and booster.
>>>> I'd also look for signs of brake fluid inside the booster,
>>>> and deteriorated paint on it......from brake fluid leaking from the
>>>> master cylinder.
>>>>
>>>> it's odd............great breaking when it's making the sound.
>>>> My attention is sure drawn to the booster.
>>>> and the vacuum nose from engine to brake booster.
>>>>
>>>> I have seen twice............what looked like to be an ice pick
>>>> hole poked into a vanagon plastic line.......
>>>> for no reason 'at all'..............just a hole in the plastic line,
>>>> appearing to be punctured in from the outside.
>>>>
>>>> One was a vacuum brake booster line.
>>>> one was a plastic coolant bleed rail around the top of a 2.1
>>>> waterboxer engine compartment. And no explanation of how those holes
>>>> got there at all.
>>>>
>>>> thanks for saying it's a Westy Syncro .  Will be interested to see
>>>> what you find.
>>>> Scott
>>>> www.turbovans.com
>>>>
>>>>
>>>>
>>>> ----- Original Message ----- From: "Kim Brennan"
>>>> <kimbrennan@MAC.COM>
>>>> To: <vanagon@GERRY.VANAGON.COM>
>>>> Sent: Friday, July 31, 2009 2:43 PM
>>>> Subject: Brakes, reprise
>>>>
>>>>
>>>>  Welp, I had hopes that the issue with my brakes on my Westy Syncro
>>>>> was
>>>>> the master cylinder. But no such luck. Problem still exists. A
>>>>> review,
>>>>> when braking, if I pump the brakes, I'll get braking, but usually
>>>>> all
>>>>> the way down at the floor. Occasionally I will hear a airy buzzing
>>>>> sound from the center of the dash and on those occasions, I will
>>>>> get
>>>>> braking at the top of the pedal.
>>>>>
>>>>> Since that's come from the center of the dash area, I'll have to
>>>>> follow the sound.
>>>>>
>>>>
>>>>

--
Beverley Anne de Villiers   April 20, 1930 - July 4, 2009

Jake

1984 Vanagon GL
1986 Westy Weekender "Dixie"

Crescent Beach, BC

www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27