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-   -   o2 sensor thd size? (http://forums.pelicanparts.com/porsche-911-technical-forum/210608-o2-sensor-thd-size.html)

Nine9six 03-12-2005 09:22 AM
o2 sensor thd size?
 
I am replacing the 02 sensor on my 87 Carrera. The one I removed looks to be the original w/75K miles on it. Upon removal without the help of the o2 socket, and the use of heat, wd40, and a 22mm boxend, I have noticed that the internal thds in the cat could use some chasing.
What size tap and thd pitch will I need for this job?
Thank you for your help,
Paul

ruf-porsche 03-12-2005 12:07 PM
get your self a spark plug tap, same size as the o2 sensor.

john walker's workshop 03-12-2005 12:20 PM
it's 18 X 150. sparkplugs are 14mm.

Jared at Pelican Parts 03-12-2005 01:32 PM
Im pretty sure that Bosch uses the same thread pitch and diameter for all O2 sensors...


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