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Subject:Re: Removing Oxygen Sensor tips needed, broken O2 sensor cause backfire?
From:Steve Delanty
Date:Tue, 23 Sep 2003 19:28:53 -0700

>
>Andy, you might be able to install a threaded insert or Heli-Coil.  If you
>have any luck at all, the thread size of the OXS will be commonly available.

It's the same threads as 18 mm spark plug. (nearly all threaded O2
sensors are 18mm)
O2 sensor bungs are available from any decent speed shop, ready to
weld into custom exhaust systems.

Steve
EJ22 -> '86 Westy "Escape Pod"