[s-cars] Manual Control of afterrun pump and fan

[James Murray (QB/EMC)]

Is there no thermo-switch out there with a lower operating temperature that could be used in place of the current one? This to me would be a preferable solution to a manual switch... 

/Jamu

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Sean Douglas
Sent: Monday, September 06, 2004 1:04 PM
To: landaeta1 at comcast.net; 'Kevin Day'; 'Noah'
Cc: s-car-list at audifans.com
Subject: RE: [s-cars] Manual Control of afterrun pump and fan


Doug:

The pump only runs when the ignition key is on the off position, as soon
as the key is turned on, the pump shuts off.

Sean



> -----Original Message-----
> From: Doug Landaeta [mailto:landaeta1 at comcast.net] 
> Sent: Monday, September 06, 2004 9:27 AM
> To: 'Sean Douglas'; 'Kevin Day'; 'Noah'
> Cc: s-car-list at audifans.com
> Subject: RE: [s-cars] Manual Control of afterrun pump and fan
> 
> 
> Question: I thought that the after-run pump forces
> the coolant in the opposite direction than when
> the engine's internal water pump is running. If
> the standard after-run switch is by-passed, does
> the after-run pump and fan come on when the motor
> may be running? This may be a problem if the 2
> pumps are fighting each other.
> 
> Doug L
> 94 S4
> 
> > -----Original Message-----
> > From: Sean Douglas [mailto:quattro20v at telus.net]
> > Sent: Monday, September 06, 2004 12:10 AM
> > To: 'Kevin Day'; 'Noah'
> > Cc: s-car-list at audifans.com
> > Subject: RE: [s-cars] Manual Control of afterrun
> > pump and fan
> > 
> > I did something similar, but instead of a dash
> > switch, I installed a
> > thermo switch (034 919 369 A)that measures air
> > temperature under the
> > hood and is set to come on at 85 celcius. I
> > mounted the switch on the
> > right side of the engine, near the back just
> > above the downpipe. I
> > removed the wires from the stock coolant temp
> > switch and ran them to the
> > new switch. Now when I run my car, the after-run
> > pump and fan comes on
> > about 80% of the time.
> > 
> > Here is a picture: http://pictureposter.audiworld.com/52091/switch0
> > 04.jpg
> > 
> > Sean
> > 
> > Sean Douglas
> > 1997 Audi S6//RS2-spec
> > 1990 Audi 90 quattro 20v
> > 
> > 
> > > -----Original Message-----
> > > From: s-car-list-bounces at audifans.com 
> > > [mailto:s-car-list-bounces at audifans.com] On
> > Behalf Of Kevin Day
> > > Sent: Sunday, September 05, 2004 4:40 PM
> > > To: Noah
> > > Cc: s-car-list at audifans.com
> > > Subject: Re: [s-cars] Manual Control of
> > afterrun pump and fan
> > >
> > >
> > > On Sun, Sep 05, 2004 at 02:42:32PM -0400, Noah
> > wrote:
> > > > Has anyone added a switch to control these
> > two things? I'd
> > > like to be
> > > > able
> > > > to turn these two things on by hand when I
> > am wanting to
> > > cool the car down
> > > > faster so's I can work on it sooner.
> > > >
> > > > Anyone btdt? of course reasons why this is a
> > bad idea are also
> > > > welcome.
> > >
> > > I did this and am pretty happy with it.  I
> > partially
> > > documented it here:
> > http://ultrameta.home.comcast.net/swturbocool/
> > >
> > > In addition to allowing a manual override, it
> > lights an indicator on
> > > the dash when the thermoswitch closes on its
> > own.  I have
> > > seen it once or twice on a hot day while the
> > engine was running.
> > > Cost is one defroster switch and a homemade
> > wiring harness.
> > >
> > > -Kevin
> > > '94 S4
> > >
> > >
> > _______________________________________________
> > > S-CAR-List mailing list
> > > S-CAR-List at audifans.com 
> http://www.audifans.com/mailman/listinfo/s->
> > car-list
> > >
> > 
> 
> 
> 

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