'91 100 After Run Fan

[John Gourley]

Here in the U.S. at least, the 91 100 has the NF engine  (just sold mine)

John Gourley



On Mon, Aug 30, 2010 at 10:41 AM, Ed Kellock <ekellock at gmail.com> wrote:

> I have a CGT with the NG motor as I believe is in you 91 100, or very
> nearly
> so.  Even when I did a track event with the car, I had to jumper the
> afterrun fan manually.  The CGT engine compartment is a little tighter than
> in teh type 44 chassis so I wouldn't expect the afterrun to run on its own
> very often at all.  The only thing that I can see as a downside to your
> choice to jumper it to run every time is premature failure of the fan
> motor.
>
>
> Ed
>
>
>
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com]
> On
> Behalf Of Steve Buchholz
> Sent: Sunday, August 29, 2010 8:10 PM
> To: audifans list
> Subject: Re: '91 100 After Run Fan
>
>
> By jumpering the temp switch you have verified that the afterrun system is
> working.  You have a temp switch that is more conservative than the one
> Audi
> chose to use.  You have a non-turbo engine, which should have less need to
> keep things cool after shut down than a turbo motor.
>
> My recommendation would be to hook the switch back up and call it good.
> Perhaps some day when you shut down during  a tour of Death Valley in the
> summertime you can make proper use of the afterrun system.
>
> Steven Buchholz (mobile)
>
> ----- Reply message -----
> From: wadd-wadd at usa.net
> Date: Sun, Aug 29, 2010 6:47 pm
> Subject: '91 100 After Run Fan
> To: "Tony Lum" <tlum at flash.net>
> Cc: <quattro at audifans.com>
>
>
> I have the 85 degree after run fan switch too.
>
> Here is what I did: I simply connected the two wires together. This way the
> fan comes on every time after I shut off the car and turns off once the
> timer in the relay kicks in.
>
> Any adverse effects of this modification? Alternatively, is there a lower
> temperature after run switch available?
>
>
>
> ------ Original Message ------
> Received: Sun, 29 Aug 2010 11:53:57 AM EDT
> From: Tony Lum <tlum at flash.net>
> To: wadd-wadd at usa.net
> Subject: Re: '91 100 After Run Fan
>
> > Take a look a the switch.  If its not 85 deg C marked on it, get one.
> > In
> reality, I've got two cars with the same system and neither one has ever
> really run.  Part of it I think is because of where the switch mounts.
> Stuck up in the air on the left side of the valve cover (drivers).  The
> older cars mounted the switch on a bracket over the right side of the
> engine
> right over the exhaust manifold.  Even there, with the low temperature
> switch, I've heard run only a couple of times.
> >
> > Tony
> > '83 urquattro
> > '87.5 coupe GT
> > '89 100 Avant
> > '01 A4 Avant quattro 2.8
> >
> >
> > --- On Sat, 8/28/10, wadd-wadd at usa.net <wadd-wadd at usa.net> wrote:
> >
> > From: wadd-wadd at usa.net <wadd-wadd at usa.net>
> > Subject: '91 100 After Run Fan
> > To: quattro at audifans.com
> > Date: Saturday, August 28, 2010, 10:27 PM
> >
> > I've never heard the fan come on after I shut off the car. When I jump
> > the terminals of the sensor at the back of the engine block, the fan
> > turns on. I've replaced the sensor, but the fan still does not turn on
> > after a hard run.
> >
> > Any suggestions on verifying the after run fan system is operating
> correctly?
> >
> >
> > _______________________________________________
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> >
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