Why not just solder two 2 1/2" long 1/2" copper stubs into a 1/2" ball valve
and stick that in there?  1/2" copper fits inside that 5/8" heater hose very
well.  Add a couple of clamps and you're good to go!  ;)

On Fri, Jun 24, 2011 at 6:54 AM, Edward Maglott <emaglott3@gmail.com> wrote:

> John,
> I have installed a prototype valve that shuts off all flow to both
> heaters in my 2.1.  It is installed in the heater hose near the
> driver's side driveshaft.  I made it out of CPVC because it was
> cheap.  I know that material is not compatible with the coolant, I
> will take it out promptly.  Probably will make the final version out
> of copper unless someone points me to a better choice at a similar
> price.  I used a 1/2' ball valve with about 3" of 1/2" pipe sticking
> out of each end.  Cut the hose and stuck the pipes into each end and
> secured with 2 hose clamps on each.  Works great.  You do have to get
> under the van to switch it on or off, but for the really hot part of
> the year that is probably fine.  It is pretty easy to reach and do
> without getting dirty if you lay down your piece of cardboard or tarp
> that lives between rear cushion and engine cover.
>
> Neither of my heaters turn off completely.  I don't notice it until
> it is really hot.  Even though there is no air moving past the rear
> heater it heats up the whole underseat cabinet and bed area if I
> drive  a few hours.  Not cool for sleeping.
>
> Edward
>
>
> At 07:46 AM 6/24/2011, John Rodgers wrote:
>
>>  I need to install a summer shutoff valve on the hose to the front
>> heater core. I just cannot get the heat valve to close tight enough, and
>> in this summer heat hot air blowing is a bit much. Is this procedure
>> posted on a website anywhere? Got a link?
>>
>> Thanks,
>>
>> John
>>
>> --
>> John Rodgers
>> Clayartist and Moldmaker
>> 88'GL VW Bus Driver
>> Chelsea, AL
>> Http://www.moldhaus.com
>>
>

--
Jake

1984 Vanagon GL 1.9 WBX - 'The Grey Van'
1986 Westy Weekender/2.5 SOHC Subie - 'Dixie'

Crescent Beach, BC

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