Karl, Rich,

I have been reading this string but just now paid attention to it.  Which
heater core are you referring to?  Does the front heater need to be left on
(water flowing) if the Subaru is installed?

Patrick
'85 Westy

----- Original Message -----
From: Rico Sapolich <JKrevnov@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, May 20, 2000 7:02 AM
Subject: Re: Attn: Successful Subaru transplants: heater control solution?

> In a message dated 5/20/00 1:55:39 AM, thewestyman@MINDSPRING.COM writes:
>
><< One oddity of the Subaru engine is
> that the coolant flow to the heater core must be constant, i.e. the flow
> cannot be restricted or shut off, as this will cause the engine to run hot
> or overheat. Has someone designed or used a three-way valve, or other type
> bypass system that will allow the coolant to be closed off as normal, to
the
> heater core, but at the same time allow the coolant to continue to flow
back
> to the engine in a completed circuit? Any ideas? Thanks!
>
> Karl M
>
> Westy Ventures >>
>
> Karl,
> You have the solution.  A shunt in the loop via a 3-way, 2 position valve
> with the CORRECT flow pattern will accomplish what you want.  I checked
for
> one but, I couldn't find one quickly with hose barbs.  Surely, they are
made.
>  There is nothing wrong with using a threaded valve with hose bard
adapters;
> it's just not as svelte.
>
> Another way is to use 2 stop cocks.  That is even less svelte but
> accomplishes the same end.  One problem with this hookup, which a 3-way
> circumvents, is that someone not familiar with the valving arrangement may
> inadvertently shut off the loop.
>
> Rich
>