riofrio

I just broke a socket wrench because of the stupid O2 sensor. What's the best way to get it out? I didn't try from underneath, but it does not look like that would make it any easier.
Also, does the car need to have cooled down all the way to do this?

Dom

Impact gun?

riofrio

hmm... don't have one. Any other suggestions?

I just put her on ramps and I'll try again tomorrow, will work on it before warming her up.

bizarro

iTrader: (1)

i have an SE and the only way i could get to mine was from underneath...

web777

Take the exh mani out + WD40.

riofrio

how big of a pain in the *** is to take it out?

bizarro

iTrader: (1)

wasn't tough for me...i took 2 wrenches...one went on the sensor the other hooked on the end of the other wrench giving more leverage to break it loose...took me 3 minutes

riofrio

do you guys think I should worry about not forcing it too much? I mean, could I potentially break something in there?

thanks bizzarro... I might try something like that too.

GavinJuice

Either torch it, use some PB Buster (best penetrating oil out there), or get a better socket.

bouis

Get an American-made 1/2" breaker bar and six-point socket.

riofrio

meaning, the exhaust manifold. You know, in case I give up otherwise.

rhinor61

Spray on some lube and let soak over night, spray on some more and start the engine up and let the car run for a few minutes. We call that the old 'heat wrench' trick.

Use a quality 6 point socket and it should loosen up for you.

Make sure the exhaust is cooled down before installing the new O2.


John

mazda123x5

I used a closed end wrench and 2 pound masonary hammer cracked first hit! Just wear your saftey
glasses. Its easy to do, from underneath.

fstrnyou

Add a little extra anti-sieze to the O2. There should be some already on it, but I guess adding more can't hurt.