| Author | Message | ||
     Buellx1w |
I leaned on a 1/2 in breaker bar, tapped the sensor with a hammer, won't budge. I think its the original 02 sensor been in there 40K miles. Then I tried the air wrench- it started rounding so I quit. I'm using a 7/8 slotted hardened socket. Its snug but not as snug as it could be. Suggestions are welcome. | ||
| Gtfour |
Break the end of the sensor off, then use a 6 point socket to break the base loose. It's the easiest way to get a stuck sensor off. The slotted o2 sensors always have some flex to them. | ||
| Ratbuell |
Is it still on a running bike? Run the engine long enough to get the sensor hot. Use a long box-end wrench once it's good and hot. If it's not on a running bike...get a torch. | ||
| Buellx1w |
> Is it still on a running bike? Yes,its running. I did read some other's suggest that heating the header threaded area with a torch will help, but the headers are powder-coated and I wasnt sure that was such a great plan- I'm not sure powder-coat can stand u to direct flame? I'll try warming it up first this evening. I hate to *commit* myself by cutting off the sensor but I might make that leap Thanks guys..  | ||
| Two_seasons |
You won't be able to get a straight-on bite with the socket if you haven't broken the back end off. Break the back end off with large pliers, then the correct socket to remove. Long extension to be able to have enough oomph to break it free. | ||
| Akbuell |
Might consider heating just the sensor w/the torch, after taking the end off,not the header. And put some kind of heat shield over the starter assy. No need to 'cook' that. They can be difficult .... | ||
| Natexlh1000 |
If you get the pipe off of the bike, you could use a propane torch on the inside as if it's hot exhaust gasses. The sensor is pretty lose to the beginning of the pipe. I hope your sensor is ACTUALLY faulty after all this drama! | ||
| Kevmean |
Take out the battery and try a ring spanner on it then at least the pressure applied is not trying to rock the spanner off the hexagon like a socket does. | ||
| Buellistic |
Go to Wal-Mart an get a can of PB BLASTER !!! Spray it on the 02 sensor and let it set over night ... The next day it will come right out !!! When you put it back in use COPER COMPOUND TORQUE'ing COMPOUND and torque to FSM specifications ... It will then come out the next time you want to remove it !!! (Message edited by buellistic on March 14, 2013) | ||
| Ratbuell |
PB Blaster. Make sure NOT to get any chemicals on the sensor part of the new sensor. Antiseize. WD40. Windex. Nothing. Any chemical at all will cause a rapid death and you'll get to do this again. I used to change these pretty frequently on my turbocars until I realized sloppy penetrant work was what was killing the sensors. | ||
| Buellx1w |
Thanks guys- between the heat and PB Blaster it came right out just as promised! I was careful not to get chemicals on the sensor. unfortunately I don't think it fixed the problem- still breaking up at 4KPRM. But for $18 it was a cheap thing to try, and with 40K miles on the old sensor it was a good idea to replace it.. onto the TEMP SENSOR I guess  | ||
| Buellistic |
You can clean the 02 sensor with denatured alcohol and set it on fire ... If your rear exhaust gasket is bad it causes the 02 sensor to work incorrectly(cause a 02 sensor code) ... |
