1. Re. I believe my 20V (7A) is suffering from pinging. (Ben Swann)

[Rick Hayllar]

----- Original Message ----- 
From: <quattro-request at audifans.com>
To: <quattro at audifans.com>
Sent: Friday, September 11, 2009 5:00 AM
Subject: quattro Digest, Vol 71, Issue 11


> Send quattro mailing list submissions to
> quattro at audifans.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://www.audifans.com/mailman/listinfo/quattro
> or, via email, send a message with subject or body 'help' to
> quattro-request at audifans.com
>
> You can reach the person managing the list at
> quattro-owner at audifans.com
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of quattro digest..."
>
>
> Today's Topics:
>
>   1. Re. I believe my 20V (7A) is suffering from pinging. (Ben Swann)
>   2. NG engine exhaust manifold/downpipe trouble (radek at istar.ca)
>   3. Re: NG engine exhaust manifold/downpipe trouble
>      (jlagnese at massed.net)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 10 Sep 2009 10:29:29 -0400
> From: "Ben Swann" <benswann at verizon.net>
> Subject: Re. I believe my 20V (7A) is suffering from pinging.
> To: <rhayllar at bigpond.net.au>
> Cc: quattro at audifans.com
> Message-ID: <01dd01ca3223$1b55ea60$0201a8c0 at swansong>
> Content-Type: text/plain; charset="iso-8859-1

"
Ben thanks for your suggestions It only "pings" underload  so reving it 
while stationary does no show up the problem and I am using 98 octane fuel.>
> Rick,
>
> The 7A should not bew pinging when revved and no load - unless you are 
> running something
> like diesel fue or real crap gas.  Might be indication of fuel pressure - 
> lack thereof.
>
> There may be something loose that sounds like pinging.  You may want to 
> have assistant
> rev. it while you verify noise source.
>
> Does engine run/rev. fine when driving?
>
> Ben
>
> [Date: Thu, 10 Sep 2009 16:39:18 +1000
> From: "rick hayllar" <rhayllar at bigpond.net.au>
> Subject: I believe my 20V (7A) is suffering from pinging.
> To: <quattro at audifans.com>
> Message-ID: <C439615A2A0F4728827DCFC54116AB79 at haydougwuyj1i2>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Hi Audi Gurus
> I believe my 20V (7A) is suffering from pinging.
>
> I can hear it when I rev over about 2500 RPM and when I put my foot down.
>
> I have pulled the codes and I get the all clear 4444.
>
> Can I assume that the knock detector(s) is (are) faulty? From what I have 
> read this is
> supposed to be detected as a fault code 2142 or 2144.
>
> I have also read that the computer prevents the engine from being revved 
> if the knock
> detectors are faulty. But this does not occur!
>
> Anyone BTDT please?
>
> Rick Hayllar]
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 10 Sep 2009 13:47:00 -0400
> From: radek at istar.ca
> Subject: NG engine exhaust manifold/downpipe trouble
> To: quattro at audifans.com
> Message-ID: <20090910134700.51736q32ttg7iwes at webmail.uniserve.com>
> Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
> format="flowed"
>
> Hi Guys;
>
> When removing the engine from my son's 1988 90Q for a clutch change, I
> attempted to separate the exhaust manifold from the downpipe using an
> impact wrench.  The result is one pulled-out stud (the nut wouldn't
> budge) and another mangled nut.  These things are rusted in place
> solid, like welded.  I didn't touch the two remaining nuts and got the
> engine out with the downpipe in place, lowering the subframe.
>
> Now I'm facing a choice:  do I remove the two remaining nuts (or pull
> out the studs) and replace everything properly (four new studs, nuts
> and a gasket), or should I just fix the two problem spots?  If the
> latter, how to put in the new stud and make sure it doesn't come out
> the next time?  Red Lock-tite?  That should make the bond permanent
> but will it withstand the heat?
>
> I will appreciate any suggestions on how to handle the
> manifold/downpipe problem, as well as what else to attend to, while
> the engine is out.  For example, is it worth replacing transmission
> mounts?
>
> For new, the list includes new clutch, release bearing, guide, pilot
> bearing and master/slave cylinders, and new engine mounts.
> Thanks.
>
> Radek.
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 10 Sep 2009 14:33:05 -0400 (EDT)
> From: <jlagnese at massed.net>
> Subject: Re: NG engine exhaust manifold/downpipe trouble
> To: radek at istar.ca, quattro at audifans.com
> Message-ID: <20090910143305.CXU70139 at ms12.lnh.mail.rcn.net>
> Content-Type: text/plain; charset=us-ascii
>
> Continue to remove the remaining ones. I replaced
> several studs on my 16V Scirocco which is a similar
> exhaust setup. It much better to have fresh studs
> rather than the partially rusted 21 year old
> originals.
> ---- Original message ----
>
>  Date: Thu, 10 Sep 2009 13:47:00 -0400
>  From: radek at istar.ca
>  Subject: NG engine exhaust manifold/downpipe
>  trouble
>  To: quattro at audifans.com
>  >Hi Guys;
>  >
>  >When removing the engine from my son's 1988 90Q
>  for a clutch change, I
>  >attempted to separate the exhaust manifold from
>  the downpipe using an
>  >impact wrench. The result is one pulled-out stud
>  (the nut wouldn't
>  >budge) and another mangled nut. These things are
>  rusted in place
>  >solid, like welded. I didn't touch the two
>  remaining nuts and got the
>  >engine out with the downpipe in place, lowering
>  the subframe.
>  >
>  >Now I'm facing a choice: do I remove the two
>  remaining nuts (or pull
>  >out the studs) and replace everything properly
>  (four new studs, nuts
>  >and a gasket), or should I just fix the two
>  problem spots? If the
>  >latter, how to put in the new stud and make sure
>  it doesn't come out
>  >the next time? Red Lock-tite? That should make
>  the bond permanent
>  >but will it withstand the heat?
>  >
>  >I will appreciate any suggestions on how to
>  handle the
>  >manifold/downpipe problem, as well as what else
>  to attend to, while
>  >the engine is out. For example, is it worth
>  replacing transmission
>  >mounts?
>  >
>  >For new, the list includes new clutch, release
>  bearing, guide, pilot
>  >bearing and master/slave cylinders, and new
>  engine mounts.
>  >Thanks.
>  >
>  >Radek.
>  >
>  >
>  >_______________________________________________
>  >quattro mailing list
>  >http://www.audifans.com/mailman/listinfo/quattro
>  >http://www.audifans.com/kb/List_information
>
>
> ------------------------------
>
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
>
>
> End of quattro Digest, Vol 71, Issue 11
> ***************************************
>