O2 sensor
Thread Starter
3rd Gear
Joined: Nov 2020
Posts: 3
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O2 sensor
I cross threaded my brand new header on one side of the o2 sensor. I'm trying to find my factory size o2 sensor thread. Do any one know so I can buy the right threader? I have a 96 lt1 Camaro 350.
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Can you ask the manufacturer if they can help you? They might exchange it for you as a goodwill.
You can also try chase the thread and it might work. I would get a new O2 sensor and find a tap, assuming you can easily get such a thing at an auto parts store. That or take it to a machine shop and they might have the tap and do it for a few bucks. That would save you from having another "one off" tool.
If it isn't coated, have someone take the old bung off and weld one in.
Next time you do this, have the sensor put in by hand and use the right socket for a final twist.
You can also try chase the thread and it might work. I would get a new O2 sensor and find a tap, assuming you can easily get such a thing at an auto parts store. That or take it to a machine shop and they might have the tap and do it for a few bucks. That would save you from having another "one off" tool.
If it isn't coated, have someone take the old bung off and weld one in.
Next time you do this, have the sensor put in by hand and use the right socket for a final twist.
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Sure, $10 and if it works, toss it out.
I suppose that if you have a vise to hold the pipe in place while you are turning it, then you can make it work. I personally don't like the nut head ones since it is harder to do. I much prefer the T handle one instead of holding onto a wrench and turning. A wench, sure. Lol
Last edited by aklim; Nov 14, 2020 at 08:57 AM.
Le Mans Master
Joined: Aug 2015
Posts: 6,113
Likes: 1,994
From: St. Charles MO
If all else fails, just get a new O2 sensor bung (I think they are all the same thread, but make sure it's 18mm x1.5) and have it welded into the collector of the header. Then just plug up the cross-threaded one (a plug that's cranked in and then welded should do the trick).
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
If all else fails, just get a new O2 sensor bung (I think they are all the same thread, but make sure it's 18mm x1.5) and have it welded into the collector of the header. Then just plug up the cross-threaded one (a plug that's cranked in and then welded should do the trick).
Le Mans Master
Joined: Aug 2015
Posts: 6,113
Likes: 1,994
From: St. Charles MO
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