Date: Wed, 1 Oct 2003 08:06:03 -0700
Reply-To: gary hradek <hradek@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: gary hradek <hradek@YAHOO.COM>
Subject: Re: fan switch or sensor, a busdepot question
In-Reply-To: <3F7AEB64.7090009@earthlink.net>
Content-Type: text/plain; charset=us-ascii
Mark,
about the switch, I ordered both from busdepot.
I was worried about the low temp switch running all
the time. If you still have the low temp switch you
have no plans to use it you might be able to sell it
to somone on the list who has a overheating problem.
It seems it could be temporary solution to an
overheating problem? Thanks for the headsup on the
switch. gary
--- mark drillock <drillock@earthlink.net> wrote:
> Gary is right, cooling just the radiator does have
> an almost
> instantaneous effect on the cooling system pressure.
> I had a pressure
> gauge and pump on a Vanagon cooling system a few
> weeks ago trying to
> find a leak. With the engine hot and running at a
> fast idle the pressure
> in the system would drop by several PSI in a few
> seconds each time the
> fan started and then slowly climb back up after the
> fan shut down.
>
> I put the lowest temp switch I could find in one of
> my Syncros this
> summer but took it out when the fan started running
> way too much on warm
> days.
>
> Mark
>
>
> Gary hradek wrote:
>
> > Mathew, mathew, mathew,
> > yee of so little faith, if I did not know
> > better I would say yeh name is thomas.
> > The after shutdown cooling fan action is about
> > cooling the radiator and coolant in the radiator
> not
> > the motor. By this air flow, overboiling is
> > prevented. It's the old pv equals nrt equation.
> If
> > T temperature goes up than pressure and or volume
> > goes up and coolant goes pissing our the back blue
> cap
> > into the overflow everytime you shut off a hot
> engine.
> >
> > Which brings me to my busdepot question.
> > Busdepot sells a sensor switch which is a lower
> > temperature switch for the two speed radiator fan.
> > Does anyone know if it works better?
> > thanks gary
> > Date: Mon, 29 Sep 2003 09:30:49 -0700
> > From: Matthew <poll7356@UIDAHO.EDU>
> > Subject: Re: fan switch or sensor
> >
> > yes, but it is stupid. On the a2's the fan will
> pull
> > air through the
> > radiator and over the engine to cool it. Whereas
> the
> > vanagon will pull
> > air over the radiator but that air doesn't get
> over
> > the engine nor does
> > the coolant cycle. What is needed is a small
> electric
> > pump that will
> > cycle coolant while the after-run coolant fan is
> on.
> > Unless there is
> > enough thermo-syphoning going on to make it work.
> > Doubt it.
> >
> >
> >
> > __________________________________
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