Header to DP flange - Need Part Number

[Mark J. Besso]

The part number you're looking for is 853.253.115 which is the gasket 
between the manifold and downpipe.  It has (5) holes for attachment studs 
and (3) holes for exhaust with the offset/center one being a much smaller 
diameter.

I looked it up at: http://www.vagcat.com by selecting
    >Audi 80/90/Avant/quattro
    >Exhaust
    >Front Pipe
    >Item #4.

Check it out yourself to be sure.

~Mark



On Wed, 14 May 2008 14:17:53 -0700
  "Tyson Varosyan" <tigran at tigran.com> wrote:


  Hi Guys,
  
  I am trying to track down this gasket (again 86 4ksq - this is the gasket
  between the header and downpipe) I am working with SJM and a few other
  vendors and everyone is sending me pictures of stuff that looks nothing 
like
  it should. Does anyone know the part number for this thing?
  
  Tyson Varosyan
  Technical Director, Uptime Technical Solutions LLC.
  tyson at up-times.com
  www.up-times.com
  206-715-TECH (8324)
  UpTime/OnTime/AnyTime
  
  
  -----Original Message-----
From: quattro-bounces at audifans.com
[mailto:quattro-bounces at audifans.com] On
  Behalf Of Mark J. Besso
  Sent: Wednesday, May 14, 2008 12:23 PM
  To: audi at humanspeakers.com; tigran at tigran.com
  Cc: Audifans
  Subject: Re: Header to DP flange
  
  Tyson,
  
  I think you'll find the studs are 8mm thread which would put the
  wrench/socket size between 12mm-14mm depending on what was used.
  
  The last time I did this job was many years ago, but I seem to recall it
  requiring no less than two extensions with a universal joint between them.
  Use a 6-point socket as you don't want to round these off during removal.
  If you round them off your only option may be cutting torches!
  
  Now would be the right time to decide if this is a job better suited to a
  professional with a lift and air tools.  It's not something you want to
  start unless you can complete the job as driving around with the entire
  exhaust system hanging isn't real practical....if even possible.
  
  Consider Chris at Fine Tuning on North Aurora.  He's at 206-522-5503.
  
  ~Mark
  
  
  
  On Wed, 14 May 2008 14:58:56 -0400
   Huw Powell <audi at humanspeakers.com> wrote:

   
> My 86 4ksq is now dobbed the "Laudi" because of a ginormous leak 
>between the
> header and downpipe.
> 
>  
> 
> I crawled under the car and counted 4 rusty bolts around an 
>odd-shaped
> gasket that seemed impossible to get to.
> 
>  
> 
> #1 Where do I get a replacement gasket for this juncture?
   
   Call anyone who sells import parts.  Heck, Atlantic had one in stock
   last time I thought I needed one.
   
> #2 How do I get at it? 
   
   Great suffering and torture, basically.
   
   There are 5 studs in the manifold sticking through the gasket and then
   the downpipe flange.  I think they are 8mm but I might be wrong.
   
   It's easier to do with the engine out of the car ;)
   
   This might also be a good time to move your battery to the trunk if you
   ever wanted to, since I think that would give you more access from above.
   
   Or try removing the intake manifold to get more access:
   
   http://www.humanspeakers.com/audi/cise3.htm
   http://www.humanspeakers.com/audi/cise4.htm
   
   As you can see, you can't see what you're working on:
   
   http://www.humanspeakers.com/audi/exhaust5.htm
   
   but this is what they look like:
   
   http://www.humanspeakers.com/audi/images/4kq-em-dp.jpg
   
   --
   Huw Powell
   
   http://www.humanspeakers.com/audi
   
   http://www.humanthoughts.org/
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