| Author | Message | ||
     Uly_dude |
So I've removed the rear sub frame, rear shock, and fan, to get to my O2 sensor cause I did not want to rotate my engine. I think maybe I should've. Has anyone had any experience getting this thing out? It is really stuck onto the header! I've been trying to use a special little socket called an O2 sensor removal tool but I'm not getting enough twist action out of it and I'm using a 1/2 inch drive ratchet good lord. My next move is to go find an off-set open end 7/8" wrench but I'm not even sure that's going to work. Anyone got any tricks up their sleeve to extract this part?? I'm a bit hesitant to get the torch out..... | ||
| Teeps |
It's been a few years since I did that job, but as I recall there was only a few degrees of swing before running into the frame. Might try a 1/2" breaker bar. Don't use a standard open end wrench, it will end in tears. | ||
| _buelligan_ |
Try Penetrating oil and/or heat gun? | ||
| Ourdee |
Part No. 16-PB-DS THE ORIGINAL PB B'LASTER PENETRANT Apply every few hours for a day or two. | ||
| Uly_dude |
Thanks guys for all the ideas. I'll give it another shot this weekend - I hope. | ||
| Giarcg |
Don't waste your time with PB B'LASTER PENETRANT (especially for a day or two)... A method that has never failed me is to disconnect the wire harness and slide a box wrench down onto the sensor. You've already removed the right parts, you may have to modify (bend) the wrench. A sharp wack on the end of the wrench with mallet will get things moving. Again, it's never failed and I've used this method on many O2 sensors. (Message edited by giarcg on May 06, 2020) (Message edited by giarcg on May 06, 2020) | ||
| _buelligan_ |
Mallet and a hammer may work good for some situations but I don't see him getting much swinging action through the fan port in the frame. | ||
| Giarcg |
Definitely not much room but the good news it doesn't take much. Once broken free with very little movement they always threaded out easily. Worth a try. | ||
| Tootal |
I have an old Crapsman 7/8" combination wrench that's been bent just for removing O2 sensors. That's how I removed mine. Didn't need the mallet though but I might have looped another box end on the open end of the 7/8. | ||
| Nillaice |
penetrating oil cant hurt, might help. i dowsed the exh stud nuts in between rides just before i was planning on taking off the headers. yah, put the box end of a wrench on it and i'll bet you can convince it loose with a precision ball-peen device. i bought an O2 socket, but you could slice up the side of any 7/8 socket with an angle grinder for the wire and then hit it with an impact gun. if all else fails heat, beat and repeat | ||
| Giarcg |
Exhaust studs with exposed threads are a good example for using oil... there is a chance it will wick into the threads and if the nut moves it will benefit from the lubrication. A well seated O2 sensor will not allow any wicking until it unseats. Lube at that point may help but as I mentioned they tend to thread out easily once broken free. | ||
| Cupcake_mike |
I unbolt the top bolt of the shock, pull the fan and use a crows foot on the 02 sensor. I've never had a real "stuck" one on a uly, though. I end up doing this job ever 1.5-2 years (25-30k miles) since I've had the bike (2015). I'm due for another one, as we speak. | ||
| Motorfish |
I’ve had the same success with a crows foot also. But the Bosch O2 sensor didn’t last long at all. I bought a NTK NGK 21002 to replace it with. Not that hard to do. Getting to it soon. | ||
| Mark_weiss |
I have the Comfort Kit installed. Will it be less work to go through the fan opening or rotate the engine? An O2 sensor change is in my not so distant future. | ||
| Tpehak |
Through the fan is faster and easier and this is what service manual guides. | ||
| Mark_weiss |
My service manual was written prior to the comfort kit so that is why I was wondering if the recommendation was still so. | ||
| Smorris |
i cut my comfort kit fan shrowd into 2 pieces. allows for less problems removing and installing. used gorrilla tape to seal when in use. there is a link about the mod |
