O2 Sensor Hole Stripped. - BMW Luxury Touring Community
 
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post #1 of 10 Old Apr 12th, 2010, 1:30 pm Thread Starter
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O2 Sensor Hole Stripped.

The title said it all. I removed my O2 sensor today & it was VERY hard to get out.
After removing the exhaust from the bike I heated the sensor then used a small pipe wrench with a cheater bar. The sensor came out with NO threads left on it. Does anyone know what size the threads are so I can get a tap to clean up the threads in the exhaust?

Stevie Shreeve
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post #2 of 10 Old Apr 12th, 2010, 2:27 pm
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Re: O2 Sensor Hole Stripped.

I don't know what size it is, but I have a metric tap & die set that likely has the right size tap. I'll look to see if I can find a exploded drawing that states the size (dia. & thread pitch). If you have the new "Lambda monitor probe," we can use the set to determine the correct size. John Zeiler may be lurking & seems to come up with information from the secret vaults.

Benny C. (Central Texas)
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1986 Kawasaki Concours (Connie) sold
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Last edited by BennyBob; Apr 12th, 2010 at 3:03 pm.
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post #3 of 10 Old Apr 12th, 2010, 4:28 pm
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Re: O2 Sensor Hole Stripped.

I have not had the O2 sensor out of the LT, but most O2 sensors use 18mm spark plug threads. so a spark plug thread chaser should work. Or if the threads are pulled out of the pipe there are helicoil thread inserts available
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post #4 of 10 Old Apr 12th, 2010, 4:43 pm Thread Starter
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Re: O2 Sensor Hole Stripped.

Quote:
Originally Posted by djacobs
I have not had the O2 sensor out of the LT, but most O2 sensors use 18mm spark plug threads. so a spark plug thread chaser should work. Or if the threads are pulled out of the pipe there are helicoil thread inserts available
Yep it is 18MMX1.5 so I got a spark plug thread chaser but the threads in the exhaust just pulled out... so I will be replacing the exhaust.

Stevie Shreeve
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post #5 of 10 Old Apr 12th, 2010, 4:49 pm
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Re: O2 Sensor Hole Stripped.

Steve..
Go to "www.summitracing.com"... search for "o2 sensor bung"

here's one.. says it is size you mention:

http://www.summitracing.com/parts/BIG-10120FLT/

...............
J.M.J...
Dcn Channing

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post #6 of 10 Old Apr 12th, 2010, 5:17 pm
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Re: O2 Sensor Hole Stripped.

Put some anti-seize on the O2 sensor threads when you install it.

Dave Selvig
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post #7 of 10 Old Apr 12th, 2010, 7:15 pm
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Re: O2 Sensor Hole Stripped.

I bet you can helicoil it.
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post #8 of 10 Old Apr 12th, 2010, 7:28 pm Thread Starter
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Re: O2 Sensor Hole Stripped.

Quote:
Originally Posted by deanwoolsey
I bet you can helicoil it.
I have used Helicoils in the past & they work great but..... Dick has 2 early LT exhausts & he will meet me in Blanco on Sunday morning so I can get one of them.

Stevie Shreeve
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post #9 of 10 Old Apr 12th, 2010, 8:00 pm
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Re: O2 Sensor Hole Stripped.

Just a note regarding heli-coils. There is a new (to me) product that I've read a lot of good things about. It's called a Time-sert. Lots of good videos on YouTube on Time-serts.
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post #10 of 10 Old Apr 12th, 2010, 10:28 pm
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Re: O2 Sensor Hole Stripped.

Hello Steve

I have had the bung replaced at the local muffler shop for about $5 on autos , with the LT exhaust just watch the alignment as there is not too much room for error .

Bob G
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