Does anyone know the wrench size of the O2 sensors on a 2010 Dyna...is it 7/8"?....looked at the HD tool and figured I'll carve up an old long reach socket(box wrench?)with a grinder but need to know what size...I have limited enough tools as it is!
Also can anyone help me out with the torque setting when replacing them?
Thanks

 

7/8" wrench should do the trick. Torque the sensors at 29-34 ft-lbs, and be sure to use a dab of hi-temp anti-seize on the threads.
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Make sure not to get any of that anti-seize on the brass part of the sensor, and wipe any excess off before you run the bike. A thin coat on the threads only is all you need. It would not be ab-normal to see some smoke coming out of there at first.

 

I always put the light coat of anti-seize on the threads of the sensor not in the bung. That way the excess doesnt get pushed into the pipe. if your pipes smoking because of the never seize your using way too much. I believe a lot of people claim its never seize thats smoking when its actually just burnoff from new pipes/baffeling

 

I believe the actual size is 22mm. Open ended spanner works pretty good.

 

Yes it is a 22 mm