[s-cars] RE: heat shield woes

Thu Mar 11 13:53:15 EST 2004

Wayne,

I've used big hose clamps on each end of the effected pipe. tighten' em' up
good and the rattle should go away.

Bill Healy
'93

-----Original Message-----
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Sent: Wednesday, March 10, 2004 10:50 PM
To: s-car-list at audifans.com
Subject: S-CAR-List Digest, Vol 5, Issue 42

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Today's Topics:

   1. Re:  Re: POS source, now: Whatsa  POS? (lebakken1 at netzero.com)
   2. Re:  Re: POS source, now: Whatsa  POS? (Mike Sylvester)
   3.  Exhaust downpipe heat shield (Wayne Dohnal)
   4. Re:  Re: POS source, now: Whatsa  POS? (Mark Strangways)
   5. Re:  Exhaust downpipe heat shield (Mark Strangways)
   6. Re:  Re: POS source, now: Whatsa  POS? (bob.rossato at att.net)
   7. Re:  Re: POS source, now: Whatsa  POS? (Mike Sylvester)
   8. Re:  Re: POS source, now: Whatsa  POS? (Mark Strangways)
   9. Re:  Re: POS source, now: Whatsa  POS? (Russ Panneton)

----------------------------------------------------------------------

Message: 1
Date: Thu, 11 Mar 2004 02:32:19 GMT
From: lebakken1 at netzero.com
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
To: igor at s-cars.org
Cc: bob.rossato at att.net, lebakken1 at netzero.com,
	s-car-list at audifans.com
Message-ID: <20040310.183308.484.655730 at webmail18.nyc.untd.com>
Content-Type: text/plain

-- Igor Kessel <igor at s-cars.org> wrote:
bob.rossato at att.net wrote:

> Power Output Stage, or Piece Of Shit.  Both apply.

Bob,
this is one exemplary comprehensive answer. Rivals those professional
laconic one-liners of my good friend and fellow lister Stefan Richter. :)

English is a very efficient language when properly applied.

Example: my wife's six bottles of shampoo in our shower. French and Spanish
take twice as many characters as English does in telling me what I am
putting on my hair. Not that I spend alot of time on this, just an
observation.......

I now have two definitions for "POS". I only hope, that when applied to my
new garage queen, it is the ONLY one.

Craig Lebakken
94 S4

------------------------------

Message: 2
Date: Wed, 10 Mar 2004 22:01:54 -0500
From: "Mike Sylvester" <msylvester at verizon.net>
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
To: <bob.rossato at att.net>, <lebakken1 at netzero.com>
Cc: s-car-list at audifans.com
Message-ID: <003801c40715$359918f0$6501a8c0 at sylvester2>
Content-Type: text/plain;	charset="iso-8859-1"

If my theory is correct about the root cause of failure, the POS is not a
POS.  The bracket and thermal grease used by Audi are a POS.

Mike Sylvester

----- Original Message -----
From: <bob.rossato at att.net>
To: <lebakken1 at netzero.com>
Cc: <s-car-list at audifans.com>
Sent: Wednesday, March 10, 2004 7:17 PM
Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?

>
> > Please tell this Snewby WTF a POS is!
>
> Power Output Stage, or Piece Of Shit.  Both apply.
>
> Dave has already explained what it's supposed to do.
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>

------------------------------

Message: 3
Date: Wed, 10 Mar 2004 19:03:32 -0800
From: "Wayne Dohnal" <wd1 at hevanet.com>
Subject: [s-cars] Exhaust downpipe heat shield
To: "S-car list" <s-car-list at audifans.com>
Message-ID: <000e01c40715$70d2fe40$ada35e82 at dohnal>
Content-Type: text/plain;	charset="iso-8859-1"

What is the preferred remedy when the heat shield on the downpipe (between
turbo and cats) turns into junk metal rattling around on the pipe?  Do you
just tear it off, or must something else be done?  I assume that buying a
new downpipe is the least-desirable solution.

Wayne Dohnal
1994 S4

------------------------------

Message: 4
Date: Wed, 10 Mar 2004 22:07:27 -0500
From: "Mark Strangways" <strangconst at rogers.com>
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
Cc: <s-car-list at audifans.com>
Message-ID: <020b01c40715$fc5f53f0$0200000a at Dell>
Content-Type: text/plain;	charset="iso-8859-1"

Indeed in order to determine if said POS is actually a POS, or if it's the
heat transfer and heat sink's being themselves P'sOS one would need to take
that temp of the POS while running and producing it's output power.

Perhaps even one might surmise that the POS is becoming a POS due to low
voltage caused by a POS alternator or POS battery.
These can increase current draw thru the POS, thereby increasing the heat
output.

Now I could go on all nite with this but I feel "the list" eyeing me for a
Colorado mafia hit.
But since I am near sea level, I'm not worried. They only have power above
8000 ft ;-)

Mark S
----- Original Message -----
From: "Mike Sylvester" <msylvester at verizon.net>
To: <bob.rossato at att.net>; <lebakken1 at netzero.com>
Cc: <s-car-list at audifans.com>
Sent: Wednesday, March 10, 2004 10:01 PM
Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?

> If my theory is correct about the root cause of failure, the POS is not a
> POS.  The bracket and thermal grease used by Audi are a POS.
>
> Mike Sylvester
>
> ----- Original Message -----
> From: <bob.rossato at att.net>
> To: <lebakken1 at netzero.com>
> Cc: <s-car-list at audifans.com>
> Sent: Wednesday, March 10, 2004 7:17 PM
> Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
>
>
> >
> > > Please tell this Snewby WTF a POS is!
> >
> > Power Output Stage, or Piece Of Shit.  Both apply.
> >
> > Dave has already explained what it's supposed to do.
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
> >
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list

------------------------------

Message: 5
Date: Wed, 10 Mar 2004 22:08:41 -0500
From: "Mark Strangways" <strangconst at rogers.com>
Subject: Re: [s-cars] Exhaust downpipe heat shield
To: "Wayne Dohnal" <wd1 at hevanet.com>,	"S-car list"
	<s-car-list at audifans.com>
Message-ID: <021101c40716$287a38b0$0200000a at Dell>
Content-Type: text/plain;	charset="iso-8859-1"

I believe it was at this point I ordered the Stromung system.
I'm sure that helps...

Contact Jeff

Mark S
----- Original Message -----
From: "Wayne Dohnal" <wd1 at hevanet.com>
To: "S-car list" <s-car-list at audifans.com>
Sent: Wednesday, March 10, 2004 10:03 PM
Subject: [s-cars] Exhaust downpipe heat shield

> What is the preferred remedy when the heat shield on the downpipe (between
> turbo and cats) turns into junk metal rattling around on the pipe?  Do you
> just tear it off, or must something else be done?  I assume that buying a
> new downpipe is the least-desirable solution.
>
> Wayne Dohnal
> 1994 S4
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list

------------------------------

Message: 6
Date: Thu, 11 Mar 2004 03:23:02 +0000
From: bob.rossato at att.net
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
To: "Mark Strangways" <strangconst at rogers.com>
Cc: s-car-list at audifans.com
Message-ID: <031120040323.2766.6126 at att.net>

What have I started.
> Indeed in order to determine if said POS is actually a POS, or if it's the
> heat transfer and heat sink's being themselves P'sOS one would need to
take
> that temp of the POS while running and producing it's output power.
>
> Perhaps even one might surmise that the POS is becoming a POS due to low
> voltage caused by a POS alternator or POS battery.
> These can increase current draw thru the POS, thereby increasing the heat
> output.
>
> Now I could go on all nite with this but I feel "the list" eyeing me for a
> Colorado mafia hit.
> But since I am near sea level, I'm not worried. They only have power above
> 8000 ft ;-)
>
> Mark S

------------------------------

Message: 7
Date: Wed, 10 Mar 2004 22:45:31 -0500
From: "Mike Sylvester" <msylvester at verizon.net>
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
To: "Mark Strangways" <strangconst at rogers.com>
Cc: s-car-list at audifans.com
Message-ID: <004301c4071b$4dc1e280$6501a8c0 at sylvester2>
Content-Type: text/plain;	charset="iso-8859-1"

Low voltage is not going to cause increased current through the device.
The POS drives the coil which is not a constant power device it is a
constant impedance device.
When the supply voltage is low the current will also be low.

As far as taking the temperature of the POS, we would need to know the spec
of the POS to know if it was being violated.

Mike

----- Original Message -----
From: "Mark Strangways" <strangconst at rogers.com>
Cc: <s-car-list at audifans.com>
Sent: Wednesday, March 10, 2004 10:07 PM
Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?

> Indeed in order to determine if said POS is actually a POS, or if it's the
> heat transfer and heat sink's being themselves P'sOS one would need to
take
> that temp of the POS while running and producing it's output power.
>
> Perhaps even one might surmise that the POS is becoming a POS due to low
> voltage caused by a POS alternator or POS battery.
> These can increase current draw thru the POS, thereby increasing the heat
> output.
>
> Now I could go on all nite with this but I feel "the list" eyeing me for a
> Colorado mafia hit.
> But since I am near sea level, I'm not worried. They only have power above
> 8000 ft ;-)
>
> Mark S
> ----- Original Message -----
> From: "Mike Sylvester" <msylvester at verizon.net>
> To: <bob.rossato at att.net>; <lebakken1 at netzero.com>
> Cc: <s-car-list at audifans.com>
> Sent: Wednesday, March 10, 2004 10:01 PM
> Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
>
>
> > If my theory is correct about the root cause of failure, the POS is not
a
> > POS.  The bracket and thermal grease used by Audi are a POS.
> >
> > Mike Sylvester
> >
> > ----- Original Message -----
> > From: <bob.rossato at att.net>
> > To: <lebakken1 at netzero.com>
> > Cc: <s-car-list at audifans.com>
> > Sent: Wednesday, March 10, 2004 7:17 PM
> > Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
> >
> >
> > >
> > > > Please tell this Snewby WTF a POS is!
> > >
> > > Power Output Stage, or Piece Of Shit.  Both apply.
> > >
> > > Dave has already explained what it's supposed to do.
> > > _______________________________________________
> > > S-CAR-List mailing list
> > > S-CAR-List at audifans.com
> > > http://www.audifans.com/mailman/listinfo/s-car-list
> > >
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>

------------------------------

Message: 8
Date: Wed, 10 Mar 2004 22:48:09 -0500
From: "Mark Strangways" <strangconst at rogers.com>
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
Cc: <s-car-list at audifans.com>
Message-ID: <025d01c4071b$ac1efd40$0200000a at Dell>
Content-Type: text/plain;	charset="iso-8859-1"

To restate...

This is just a joke, only a joke...
Should this have been a valid post you would have been warned ......

Yikes...
I know my humor is dry but WTF :-)

Mark
----- Original Message -----
From: "Mike Sylvester" <msylvester at verizon.net>
To: "Mark Strangways" <strangconst at rogers.com>
Cc: <s-car-list at audifans.com>
Sent: Wednesday, March 10, 2004 10:45 PM
Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?

> Low voltage is not going to cause increased current through the device.
> The POS drives the coil which is not a constant power device it is a
> constant impedance device.
> When the supply voltage is low the current will also be low.
>
> As far as taking the temperature of the POS, we would need to know the
spec
> of the POS to know if it was being violated.
>
> Mike
>
> ----- Original Message -----
> From: "Mark Strangways" <strangconst at rogers.com>
> Cc: <s-car-list at audifans.com>
> Sent: Wednesday, March 10, 2004 10:07 PM
> Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
>
>
> > Indeed in order to determine if said POS is actually a POS, or if it's
the
> > heat transfer and heat sink's being themselves P'sOS one would need to
> take
> > that temp of the POS while running and producing it's output power.
> >
> > Perhaps even one might surmise that the POS is becoming a POS due to low
> > voltage caused by a POS alternator or POS battery.
> > These can increase current draw thru the POS, thereby increasing the
heat
> > output.
> >
> > Now I could go on all nite with this but I feel "the list" eyeing me for
a
> > Colorado mafia hit.
> > But since I am near sea level, I'm not worried. They only have power
above
> > 8000 ft ;-)
> >
> > Mark S
> > ----- Original Message -----
> > From: "Mike Sylvester" <msylvester at verizon.net>
> > To: <bob.rossato at att.net>; <lebakken1 at netzero.com>
> > Cc: <s-car-list at audifans.com>
> > Sent: Wednesday, March 10, 2004 10:01 PM
> > Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
> >
> >
> > > If my theory is correct about the root cause of failure, the POS is
not
> a
> > > POS.  The bracket and thermal grease used by Audi are a POS.
> > >
> > > Mike Sylvester
> > >
> > > ----- Original Message -----
> > > From: <bob.rossato at att.net>
> > > To: <lebakken1 at netzero.com>
> > > Cc: <s-car-list at audifans.com>
> > > Sent: Wednesday, March 10, 2004 7:17 PM
> > > Subject: Re: [s-cars] Re: POS source, now: Whatsa POS?
> > >
> > >
> > > >
> > > > > Please tell this Snewby WTF a POS is!
> > > >
> > > > Power Output Stage, or Piece Of Shit.  Both apply.
> > > >
> > > > Dave has already explained what it's supposed to do.
> > > > _______________________________________________
> > > > S-CAR-List mailing list
> > > > S-CAR-List at audifans.com
> > > > http://www.audifans.com/mailman/listinfo/s-car-list
> > > >
> > >
> > > _______________________________________________
> > > S-CAR-List mailing list
> > > S-CAR-List at audifans.com
> > > http://www.audifans.com/mailman/listinfo/s-car-list
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
> >
>

------------------------------

Message: 9
Date: Wed, 10 Mar 2004 20:49:58 -0700
From: Russ Panneton <russ at panneton.name>
Subject: Re: [s-cars] Re: POS source, now: Whatsa  POS?
To: Mark Strangways <strangconst at rogers.com>
Cc: s-car-list at audifans.com
Message-ID: <404FE1E6.5020504 at panneton.name>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Why in the world would a good engineer put electronic devices so close
to a turbocharger and wastegate if they were concerned about keeping the
electronics cool?  IMHO, our urS cars show an interesting mix of
thoughtful and thoughtless engineering decisions.

Russ

Mark Strangways wrote:

>Indeed in order to determine if said POS is actually a POS, or if it's the
>heat transfer and heat sink's being themselves P'sOS one would need to take
>that temp of the POS while running and producing it's output power.
>
>
>
>

------------------------------

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