'89 Audi 200TQ Stripped O2 sensor boss

[Brett Dikeman]

On Jun 30, 2005, at 11:05 AM, Sonar465 at aol.com wrote:

> well the O2 sensor came out along with the threads in the exhaust
> manifold.  What can be done in this case, do I need a new exhaust   
> manifold?  can
> it be retapped?

Can't retap what isn't there, though I suppose you might be able to  
helicoil it (no idea if expansion+contraction from the significant  
heat cycles would affect it).  Finding an exhaust shop and having  
them weld up a new bung would probably be cheaper, easier, and more  
reliable in the long run.

Check the Bentley for recommendations on preparations for welding- I  
believe they recommend both the ABS and airbag unit be disconnected,  
but I'm not positive.  If you don't have a Bentley, I can check mine  
later.

Brett
-- 
"They that give up essential liberty to obtain temporary
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