Date:         Fri, 24 Jun 2011 16:57:55 -0400
Reply-To:     Edward Maglott <emaglott3@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Edward Maglott <emaglott3@GMAIL.COM>
Subject:      Re: Front Heater Core Shutoff
In-Reply-To:  <BANLkTikRGMn9DFz+TPfKU_R98k8=-=vb5w@mail.gmail.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

In the vanagon, the amount of heat is controlled by the valve which
adjusts the amount of hot coolant flowing through heater core.  Where
the heat comes out is controlled by the flaps.  Over time the valve
stops closing fully no matter how well it is adjusted.  I've been
dealing with that "feature" since my '76 Scirocco.  It's probably the
same valve.  When I pull my dash I'll replace mine.  For now the
summer shutoff works for me.

Is that valve in the photo below by the rad fan?  That looks hard to get to.

The heater hose I put my valve in is the long one that connect to the
metal pipe that comes from the water pump and heads over to the
Thermostat housing.  Shuts off flow to both heaters but does not
affect the system otherwise.  Another place I looked was under the
sliding door area.  I have one of those Prestone coolant flush
fittings in the heater line there.  Thought about putting  a valve
there it would be easier to get to but would only shut off the front heater.

Edward

At 02:59 PM 6/24/2011, neil n wrote:
>I installed a shutoff valve. Fan not withstanding, heat is obviously
>controlled via flaps in heat exchange box. Not the best arrangement
>IMO. Especially if the flaps in the box seal poorly.
>
>As per Jakes comment, I shunted in a hi temp ball valve. 28 Kb image:
>http://tinyurl.com/67jp97o    Obviously near/at engine bay is a better
>location! Valve has barbed nipples. (used with PEX pipe) Hoses seal,
>having just enough purchase but as Jake suggests, sweating copper bits
>in would be best though one would obviously use a different valve than
>the one I show.
>
>If I were to do it again (install an entire cooling system   < grin >
>) I'd buy a new part, bench checking it for leaks first.
>
>Neil.
>
>
>
>On Fri, Jun 24, 2011 at 6:25 AM, Dave Mcneely <mcneely4@cox.net> wrote:
>
> > John, I had the same problem.  New heater valve and careful
> realignment and lubricating the control cable solved it.  mcneely
>
>
>--
>Neil n
>
>65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
>
>'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
>
>Vanagon VAG Gas I4/VR Swap Google Group:
>
>http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines