In a message dated 96-04-09 21:02:01 EDT, zumbrenn@ucsu.colorado.edu
(ZUMBRENNEN JOSEPH CORY) writes:

>	Anyway, my new problem is that I cannot get the O2 sensor out of my 
>cat. conv. it has rusted into place.  I went by Midas and they could not 
>get it out.  They said that they could heat it up, but that it would melt 
>the threads and I would have to get a new cat., which would be $300 or 
>something.  I have sprayed the bee-jesus out of it with Liquid Wrench but 
>it still will not move. I'm not panicked yet...for I know that there must 
>be a way!  If any of you out there have any idea what that way might be 
>please let me know.  Thanks.
>
>

Use the torch gently.  An insert can be welded to the cat for repair if
needed.  If damage not too bad, An 18mm ford spark plug insert works
perfectly.
Dennis.