North American Turbocoupe Organization

O2 Sensor Thread Pitch
oldturboman Offline
Pete, I didn't know where to post this so i'll let you. The other day I asked what size and pitch the thread in the O2 sensor was,only reply I got was to replace the elbow seeing that i'm from the generation when you fixed what you had or made a new one I didn't do that.I thought I would let you all know that it's an 18mm 1.5 pitch an 18mm spark plug thread chaser worked nicely for doing it after removing IC,also an 18mm 1.5 Helicoil would have worked.Just thought I would let someone know in case they don't want to just repl. parts.Hope This Helps oldturboman P.S. Still ain't found cause of my hot tailpipe
1-1987 Auto 1-1987 5sp. Both Turbo T-Birds NATO Member

Pete D Offline
That's good info. I looked in a couple of my books and couldn't find a spec on it when you posted. I'm not sure where to put this either but I'll leave a copy here and also put it in the Technical Questions forum.
Pete Dunham


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