Well, here I was removing my OEM pipes from my 06 Low Rider so I could install the Samson Big Gun III pipes I recently received. After removing the head pipes I had to remove the O2 sensors so that I could re-use them in the new pipes. The rear O2 sensor came out without to much problem owing to the fact that the threads didn't appear to have any anti-seize on them. Now for the front. This one wouldn't budge. Okay, put a little penetrating oil on it to help it out. After getting it out and examining the threads I found that they were bunged up. In two places the threads were stripped away. Can't even chase it to try and re-use it. Have to order new. So if any of you are planning on replacing your OEM pipes be forewarned. You may need new O2 sensor/s if they were not properly installed at the factory. BTW--the threads in the O2 bung of the head pipe looked okay.

Bart

 

One of my riding buddies had the same problem you are describing.....he was unable to repair the problem. There was no way to fix the threads this time. He replaced it.

 

Similar thing happened to me; while installing a ThunderMax w/AutoTune on my '06 FXDBI. The rear sensor came out easy, though appearing to lack any trace of anti-seize. The front was another story altogether, which resulted in an unaticipated upgrade. The weld between the bung and the pipe seperated... and I ended up replacing the entire exhuast.

-Rob

 

Ouch!!! Tha really hurts. I'm replacing my OEM pipes so it that would've happened I guess it wouldn't have been the end of the world. Anyway, my bungs didn't separate at the welds. Lucky I guess.

Bart

 

psyco on here went thru this. maybey he will hop in with advice how he fixed his .

 

get a pc111 and get rid of the o2 sensors all togethar. Then you dont have to worry about . Plus your bike will run better

 

Most O2 sensors won't come out without a quick blast of about 4,000°F If you don't heat them up they peel about 80% of the time.

 

If youhave access to it, a little "mouse milk", available at most any general aviation maintenance shops. It's used to lubricate turbo wastegate pivot points and generally help break loose any fasteners that are subject to high heat. Works rather well too.



Mike

 

I was changing to the wideband sensors, rather than changing pipes, so I just welded the new sensor in with some stainless arcaloy. When I change pipes I'll have to buy a new sensor.

 

Same thing happened to the dealer when they installed my Big Radius pipes. They said that the original was crossthreaded, they never did get it out.
The dealer warrantied the O2 sensor though, so I'm happy.