How many have damaged their o2 sensors removing them from stock cats ?

halogodx · 07-22-2011, 08:50 AM

Hey guys, I've searched the forum and couldn't find too many posts on this. But, how many have damaged their o2 sensors while removing them from their stock cats ?. I'm planning on installing test pipes soon and i already know about the demon bolt, but don't want any more surprises as i'm doing it.

cheshirecat · 07-22-2011, 09:06 AM

You would have to try pretty hard to damage them. You can get them off pretty easily using an open-ended wrench and rubber mallet. They will be pretty tight but just tap away at them a bit and they come right out.

CBRich · 07-22-2011, 02:36 PM

As stated above they're not bad. Just make sure the wrench is flush and don't wrench on it if it feels like it's going to strip.

christian370z · 07-22-2011, 04:12 PM

No problems here, if you feel resistance as you start to unscrew it and the resistance increases the more you try to turn it, you most likely have started cross threading the sensor. But you shouldn't have problems, they are simple to remove and install.

ChrisSlicks · 07-22-2011, 04:20 PM

One of mine came out with no threads left. I knew something was wrong as there was consistent resistance during the entire removal process where as the other one cracked and then spun out freely. I figure just lack of care during installation, it's been a common complaint.

halogodx · 07-22-2011, 09:22 PM

Thanks guys !

Methodical4u · 07-23-2011, 12:00 AM

did you PB blast those suckers? My Evo's were HORRIBLE getting out so these sound a lot easier... glad to hear that.

halogodx · 07-26-2011, 09:14 PM

One final question regarding the test pipes. Do all the non resonated test pipes sound the same ?

ChrisSlicks · 07-27-2011, 06:38 AM

Quote:

Originally Posted by halogodx

One final question regarding the test pipes. Do all the non resonated test pipes sound the same ?

I would say yes. The things that differentiate in that case will be steel quality, weld quality, O2 bung shape, and if there is an extra bung for a wideband sensor.

07-22-2011, 08:50 AM	#1 (permalink)
halogodx Base Member Join Date: Sep 2009 Location: daytona beach Posts: 93 Drives: 09 nissan 370z 7AT Rep Power: 16	How many have damaged their o2 sensors removing them from stock cats ? Hey guys, I've searched the forum and couldn't find too many posts on this. But, how many have damaged their o2 sensors while removing them from their stock cats ?. I'm planning on installing test pipes soon and i already know about the demon bolt, but don't want any more surprises as i'm doing it.

07-22-2011, 04:12 PM	#4 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	No problems here, if you feel resistance as you start to unscrew it and the resistance increases the more you try to turn it, you most likely have started cross threading the sensor. But you shouldn't have problems, they are simple to remove and install. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

07-22-2011, 04:20 PM	#5 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	One of mine came out with no threads left. I knew something was wrong as there was consistent resistance during the entire removal process where as the other one cracked and then spun out freely. I figure just lack of care during installation, it's been a common complaint. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

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07-22-2011, 09:06 AM	#2 (permalink)
cheshirecat A True Z Fanatic Join Date: Jan 2009 Location: Florida Posts: 1,428 Drives: N54 135i Rep Power: 293	You would have to try pretty hard to damage them. You can get them off pretty easily using an open-ended wrench and rubber mallet. They will be pretty tight but just tap away at them a bit and they come right out.

07-22-2011, 02:36 PM	#3 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	As stated above they're not bad. Just make sure the wrench is flush and don't wrench on it if it feels like it's going to strip.

07-22-2011, 09:22 PM	#6 (permalink)
halogodx Base Member Join Date: Sep 2009 Location: daytona beach Posts: 93 Drives: 09 nissan 370z 7AT Rep Power: 16	Thanks guys !

07-23-2011, 12:00 AM	#7 (permalink)
Methodical4u A True Z Fanatic Join Date: Jun 2011 Location: Maryland Posts: 1,393 Drives: 11 370 6mt pw w/sp Rep Power: 16	did you PB blast those suckers? My Evo's were HORRIBLE getting out so these sound a lot easier... glad to hear that.

07-26-2011, 09:14 PM	#8 (permalink)
halogodx Base Member Join Date: Sep 2009 Location: daytona beach Posts: 93 Drives: 09 nissan 370z 7AT Rep Power: 16	One final question regarding the test pipes. Do all the non resonated test pipes sound the same ?