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  #1  
Old 07-22-2003, 01:25 PM
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Join Date: Sep 2001
Posts: 79
Rounded Oxygen sensor

I have a 85 380sl.. I am trying to replace the oxygen sensor. I rounded the sensor. I tried just about everything to take it out.
One stupid question is , Is the sensor normal threaded or reverse threaded?
thanks
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98 MB E320
85 MB 380SL
01 Subraru Impreza (sold)
04 Toyota Highlander
82 25' W/A Cruisers
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  #2  
Old 07-22-2003, 02:26 PM
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Join Date: Jun 2002
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normal thread, you are going to have to heat it up really good and use big vice grips to twist it out

good luck
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  #3  
Old 07-23-2003, 12:02 PM
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Can you get a pipe wrench on it? Unstoppable! (unless something else breaks first...)
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  #4  
Old 07-23-2003, 04:23 PM
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Quote:
Originally posted by csnow
Can you get a pipe wrench on it?
I thought I had a patent on this.
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  #5  
Old 07-25-2003, 03:04 AM
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Get a chisel and a hammer

use a chisel and hammer. Keep tapping on it (as close to the thread as possible) till it turns a little then use a 12 point wrench and turn it. If you can heat it before you hit it, that would be even better.
Good luck
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  #6  
Old 07-25-2003, 10:16 PM
zhandax
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I took mine off the 300E cold, but on the BMW, I let the car run for about 15 minutes first. Makes it much easier to remove. You might wear heavy gloves to help avoid burning your hands.
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  #7  
Old 08-07-2003, 12:27 PM
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Finally did it.. I used a propane torch to heat the sensor for a good 3-4 min.. then put water on it.. then use a pair of vise grip and start hammer it.. it came off. then i used a runner to clean out
the threat.. The new sensor screwed in smoothly...now the rough idle is gone..
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98 MB E320
85 MB 380SL
01 Subraru Impreza (sold)
04 Toyota Highlander
82 25' W/A Cruisers
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