Removing O2 Sensor - K-Bikes.com - Excellence in Motion
 
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post #1 of 6 (permalink) Old Jun 19th, 2007, 6:40 pm Thread Starter
 
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Removing O2 Sensor

I'm getting ready to remove the stock exhaust system on my '02 KRS to install an aftermarket system (Two Bros) and I need to remove the O2 sensor first. Any suggestions on what tool to use to remove the sensor? Can I use a 7/8" wrench (7/8" corresponds pretty closely to the 22 mm flats on the sensor.) AutoZone sells a special socket to remove O2 sensors, but the BMW O2 sensor is really tall, and the AutoZone tool doesn't appear to be deep enough to allow the sensor wire to clear. Anyway, suggestions appreciated.

Jim Davis
Athens, Georgia
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post #2 of 6 (permalink) Old Jun 19th, 2007, 6:50 pm
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I just used a normal wrench to remove mine.

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post #3 of 6 (permalink) Old Jun 19th, 2007, 6:56 pm
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Quote:
Any suggestions on what tool to use to remove the sensor?
You give any thought to buying a crowfoot wrench?

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post #4 of 6 (permalink) Old Jun 20th, 2007, 7:58 am
 
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Quote:
Originally Posted by davisjj
I'm getting ready to remove the stock exhaust system on my '02 KRS to install an aftermarket system (Two Bros) and I need to remove the O2 sensor first. Any suggestions on what tool to use to remove the sensor? Can I use a 7/8" wrench (7/8" corresponds pretty closely to the 22 mm flats on the sensor.) AutoZone sells a special socket to remove O2 sensors, but the BMW O2 sensor is really tall, and the AutoZone tool doesn't appear to be deep enough to allow the sensor wire to clear. Anyway, suggestions appreciated.

Jim Davis
Athens, Georgia
knucklebuster works fine; I just replaced mine last month and thats what I used.
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post #5 of 6 (permalink) Old Jun 20th, 2007, 9:30 am
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02 Sensor

Hey Guys,
When is a recommended time to replace an 02 sensor?

Jim S.
* Everyone crashes. Some get back on. Some don't. Some can't.
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post #6 of 6 (permalink) Old Jun 20th, 2007, 4:24 pm
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I hope you have more success first time round than me. The threads get rusted in. I pulled off the heat shield and linkage to get more space then eventually got mine out with a blowtorch and pipe stilsons about 3 ft long.

Then when you come to put in the new sensor you can easily cross thread it on the rusty threads in the bike. I found my local auto shop sold a 'thread chaser' which is a sort of simple parallel tap to run down the thread and clean it up.

I'd change at 20-30K miles. Testing them isn't easy and they can slowly deteriate without actually failing.



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