I read (on this list) a post that you should always leave the rear heater
valve cracked a bit so that a little coolant always flows.  The concern was
coolant sitting in the core for half the year and starting corrosion.

Is this a real concern?
If for the rear, then why not a concern for the front?
If for the vanagon heater core(s), why not every vehicle?

Raymond

On 5/15/07, Mike Collum <collum@verizon.net> wrote:
>
> I agree when it comes to the actual purchase.  I provided the link for
> the photo and verbage ... and should have said so.
>
> I don't have any trouble with my OEM valve shutting completely off so
> I've never considered an add on.
>
> Mike
>
>
>
> John Bange wrote:
> > On 5/15/07, Mike Collum <collum@verizon.net> wrote:
> >>
> >> Terry Kay offers such a valve which can be seen on this page (scroll
> >> down a little).  It includes verbage on the installation:
> >
> >
> > Personally, I find $25 to be a little steep. If I were going that route,
> > I'd
> > stop by the hardware store and buy a couple 5/8" barb fittings and a
> valve
> > and build it myself out of BRASS rather than plastic. I also would use
> > proper spring clamps rather than those horrid cheese grater ones he
> shows.
> > Seriously, what could that toy plastic valve and fittings be costing
> him,
> > three bucks maybe? You could definitely do better on your own.
> >
> >
> > --
> > John Bange
> > '90 Vanagon - "Geldsauger"
> >
>