Date:         Sun, 5 Jul 2009 19:26:51 -0700
Reply-To:     Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject:      Re: 1.9 aux air valve
Comments: To: Greg Potts <greg@POTTSFAMILY.CA>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=response

excellent Gregg......except they are open cold, and gradually close as the
12V heater element heats the spring that makes it open when cold.
the idea is to add an air bypass around the throttle plate to increase cold
idle, and that have that gradually decrease as the engine warms up.

they are so simple and basic, that I would expect that they can be
interchanged here and there without much risk.
Scott

----- Original Message -----
From: "Greg Potts" <greg@POTTSFAMILY.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, July 05, 2009 7:14 PM
Subject: Re: 1.9 aux air valve


> Hi Robert,
>
> I can say for certain that the ones used on aircooled vans from 74-85
> are definitely interchangeable. The other marques and applications I am
> less certain about.
>
> The general idea is that they have a valve that is controlled by a
> bimetallic spring heated by a 12V coil. It is supposed to start off cold
> fully closed and gradually come fully open in 4 minutes. It's very
> simple to test them in this manner; if they pass then they are
> acceptable for use in an aircooled T4 or WBX engine.
>
> Happy Trails,
>
> Greg Potts
> 1973/74/79 Westfakia "Bob the Tomato"
> 1987 Wolfsburg Weekender Hardtop
> www.busesofthecorn.com
> www.pottsfamily.ca
>
> Robert Keezer wrote:
>> They are on rabbit, cabriolet, jetta, Golf. Audi 500 (like 83).
>> What I really want to know , does the part number matter?
>> they look the same, do the same thing, does it matter what the part
>> number says?
>>
>> --- On Sun, 7/5/09, Greg Potts <greg@pottsfamily.ca> wrote:
>>
>>> From: Greg Potts <greg@pottsfamily.ca>
>>> Subject: Re: 1.9 aux air valve
>>> To: "Robert Keezer" <warmerwagen@YAHOO.COM>
>>> Cc: vanagon@GERRY.VANAGON.COM
>>> Date: Sunday, July 5, 2009, 6:03 PM
>>> Hi Robert,
>>>
>>> Same part. It was also used on the baywindow buses from
>>> 1974 (CA Auto only, all others that year were carbureted) to
>>> 1979.
>>>
>>> There is also one on my wife's 85 cabriolet; that one has
>>> CIS fuel injection. I am pretty sure it was also used on
>>> other Bosch-FI marques in the 70s and 80s, including Volvo
>>> and others.
>>>
>>> Happy Trails,
>>>
>>> Greg Potts
>>> 1973/74/79 Westfakia "Bob the Tomato"
>>> 1987 Wolfsburg Weekender Hardtop
>>> www.busesofthecorn.com
>>> www.pottsfamily.ca
>>>
>>>
>>> Robert Keezer wrote:
>>>> I have a question exclusively for someone who really
>>> knows about these auxilliary air valves found on 1.9
>>> enegines 83-85, and on Air-cooled from 80-83.
>>>> Are they all the same? The ones for Volkswagen all
>>> look the same, and so are some for Mercedes, Audi, Porsche
>>> etc.
>>>> All have the firs 7 digits in common: 0 280 140 101,
>>> 141, etc.
>>>> I found one on a air-cooled and the number shows up as
>>> Audi, yet the engine runs fine.
>>>> Experts?
>>>>
>>>> Robert
>>>> 1982 Westfalia
>>>>
>>>
>>> --
>>
>
>
> --