Re:O2 Sensor Seized, help!
 

So if you drill out the O2 sensor and have to retap the threads what size tap do you use? Are all O2 sensors the same? I realy need to know, I have a stuck O2 that needs replaceing and I would like to get what I need before I start so my daily driver(91 Civic Si) wont be down long.

Re:O2 Sensor Seized, help!
 

Hmm...
I'v never heard of kroil before?? I'm guessing its prob at napa or sumthin, i'll check!
I think theres that wire spring stuff that are used for filling stripped threads on the head for spark plugs. I have never personally used them before, but i guess you could use some of that stuff if you could get some that fit the o2 sensor hole??Not really sure on that!

Re:O2 Sensor Seized, help!
 

i can't remember where i got the cans i have of it.
kroil is old school, and still is the best.