can't get off, destroyed threads or rounded O2 SENSOR MERGE

[webguy330i]

(x-post from evom for more exposure :))

Was about to install my new DP tonight (this would be the 2nd time these bolts were on their way out of the stock o2 housing) and as I was about to remove the 2nd bolt, it stopped. I thought "oh fock what if it stripped the o2 housing..." so I tugged a bit more, and no go. Decided to just tighten them back up, all seems ok but how the hell am I going to get it out?

And what if it did f up the o2 housing threads?

Have you had this issue and if so, did you replace it or did you re-tap it? Anyone got a link for replacing the o2 housing? Does it require near-total front end disassembly?

Thanks.

-Chris

[turbolarry]

I have not had this problem before, but the only thing that comes to my mind is this (and I can't say for sure if there's enough room);
Remove radiator
Unbolt the downpipe at the cat
Remove the O2 sensor
Remove the band clamp at the turbo
Drop the turbine housing, O2 housing, and downpipe as one piece
Use a lot of PB Blaster and take the stuff apart
Fix the threads how every you can
Bolt it back together with antisieze
Again, I don't know for sure if this will work. It's just an idea.

P.S.
On a positive note, if it does work, it would be a good time to port and polish.

[rino]

I don't think you stripped it,, you just need to keep going until it comes out. The bolts sort of "rust" in there..

[evomrguy]

Soak the shit out of the bolts with some pb blaster. Let that soak overnight, apply extra coats. Than it should come off fine. Next time you bolt it up, clean the threads off with a wire brush and use new nuts. You should be ok.

[webguy330i]

Soak the shit out of the bolts with some pb blaster. Let that soak overnight, apply extra coats. Than it should come off fine. Next time you bolt it up, clean the threads off with a wire brush and use new nuts. You should be ok.

Yeah Im gonna do this Fri/Sat I hope (want to wait for a new bolt from my dealer just in case). Will soak the hell out of it for a few hours once it's cold, and try try again.

I hope you guys are right about the stripping!

[MetalSpoolDoom]

Whats up guys been tryin to install my catback but ran into a few problems. It's my first time doing an install. So need help.

1. The damn 02 Sensor is being a bitch to get off. Read on evomoto "get a 22mm open end or O2 sensor socket out! Open the folded over tabs holding the O2 sensor wire in place and simply loosen the sensor as you would any other bolt."

What "folded over tabs" are they talkin about? Tried looking for them couldn't seem them.

I tried getting the o2 socket onto the sensor but it didn't fit on, so i'm thinking of undoing the cat side first and lowering the midpipe a bit than attempting to get to the o2 with the socket at a better angle.

2. Cat bolts are kinda stuck so I bought PB and gonna hit at it again in a few minutes

If anyone wants to help me out I'll pay for dinner and some nice GOOD cold beer. *Live in Santa Monica*

[MetalSpoolDoom]

I heard that if you spray the o2 sensor bolt and get any residue on it it'll F it up? Having trouble gettin the damn sensor out. Cat bolts not that worried since i can use PB Catalyst.

[MetalSpoolDoom]

Ok so instead of using WD40 use PB on the o2????

[oct7th1987]

pb meaning peanut butter? cuz i cant get the damn bolts off too.

[ultraflip]

if you guys are willing to hop to long beach tonight... we can work on it

[tontonh09]

go to long beach cris will help you lolz.. hey cris what time are you available today i need to pick up the intercooler pm me pls.

[xEviLxVIIIx]

pb meaning peanut butter?* cuz i cant get the damn bolts off too.


pry bar and wd40

[DTunedEvoX]

Dunno if he meant prybar lol :D

Theres a product called PB Bolt something I think is what he was reffering to .. better than WD-40 for damn stuck bolts ..

[turbolarry]

:2funny:
If he hasn't gotten that shit out since October than he's got problems.
PB = PB Blaster from any Pep Boys, Kraken Auto Zone; I've even seen it at Big Lots.

[speedracer2169]

Ok guys I'm trying to install my cat back and I don't have a 22mm open end wrench so I tried using an adjustable and sprayed it with the PB stuff and I still can't get it off. Anyone have a 22mm in the 951 or 949 that can help me out

[speedracer2169]

Well I just bought a 02 Sensor socket. Gonna give it a try tomorrow. Anyone wanna come help I'll provide the beer

[C-Spec]

Well I just bought a 02 Sensor socket. Gonna give it a try tomorrow. Anyone wanna come help I'll provide the beer


it should work fine. also use a breaker bar. if it doesn't work, get a 22mm Flare nut wrench. the open end wrench will strip your shit.

[turbolarry]

Drive it. :grin:
No really, take it for a drive and heat it up.
This happened to me and my Eclipse. That mutherfucker was in there. Breaker bar, spray... nothing worked. I gave up and drove it down to the muffler shop. They put it on the lift and took it out with a small hand wrench. I was so pissed.
PB it agin, drive it, get under the car with the O2 sensor socket and it will come right out. O0

[Luscious]

So I got myself into a jam last night...the O2 socket I got from Autozone done jacked up my O2 sensor when I tried to remove it...it didnt fit queit right, and rounded off the corners of the sensor nut when I tried to crack it. Yaddy, yadda yadda....I need a new sensor. I have found two types...one is a Bosch universal, which is about ~$70. The other is a Bosch OEM, which is ~$270. Uh....WTF? Why the price disparity? Do I HAVE to use the OEM, or can i just cut & splice the leads to the sensor line into the universal one?

[kimletrim]

Ha...the exact same thing happened to me! Fortunately, I was able to locate a previously owned O2 sensor.

[gofaster87]

Youre not really supposed to cut and splice O2 wires it can affect the signal such as with an egt wire. If you are going to use it get the proper plug.

[Blaze]

Youre not really supposed to cut and splice O2 wires it can affect the signal such as with an egt wire. If you are going to use it get the proper plug.


Sam:

Is the signal affected by a potential shoddy connection, different wire types (if extending), or the length of the wires? (I'd think only the first two would cause any ill readings) As long as the integrity of the wires are maintained there should be an issue with splicing.

Blaze

[Luscious]

The only thing to worry about is noise from the ignition...and If I shield the spliced area right, it should be fine.

EDIT: oh and GROUND the new sheilding.

[gofaster87]

I think the soldering may have an affect but Im not 100% sure. Might ask Mike W for an exact answer. I know Ive seen issues on other car signals. A plug should be used anyway.

[Blaze]

I think the soldering may have an affect but Im not 100% sure. Might ask Mike W for an exact answer. I know Ive seen issues on other car signals. A plug should be used anyway.


Hmmm.

Well, case and point, it's better safe then sorry. O0

[Luscious]

I'm gonna keep diggin for an answer...if one HAS to use a specific O2 sensor to match there car, why even sell a universal one?

[Blaze]

I'm gonna keep diggin for an answer...if one HAS to use a specific O2 sensor to match there car, why even sell a universal one?


This is not an answer, but I would get an OEM 02 sensor for your car.
The money you save won't be more then 20 dollars (i'm guessing).

There are several poeple on the forum that work for dealerships or can get you good prices.

Jeff @ 500WHP has connections with dealerships.
Sam @ SRT Motorsports can get you pretty much anything you need except for my one of APR rear diffuser made of carbon fiber and laced with metalic GG weave.
Norco Mitsu gives a discount for DSM member that carries over to us.
RRE can answer your question with a quick phone call. Plus they most likely stock the item you need.

Hit up one of those guys.

I hope that helps (even if it doesn't answer your question).

Blaze

[Luscious]

well, I got my answer....the o2 sensor is a wideband unit. Alfred @ TT hooked me up for a good deal on a used one.

[LB_CT9A]

check this out!!! i got my exhaust set-up all done up a Fujitsubo Cat-back..a custom ceramic coated DP...and now a SRT Motorsport Test - Pipe...any ways...i got the Cat-back and DP on the evo...now i come across the CAT....and it goes all down hill from hereÂ* :'( i try to take out the o2 sensor and guess what the fuck happend next!!! the sensor doesnt budge and it fuckin strips!!!! :tickedoff: so here are the steps i took...

1-- i jacked the car up after work..
2-- i let the whole car cool down for about a good 3 1/2 hrs..
3 -- went to autozone for the o2 sensor socket..(i used another ride to get there so the evo is still cooling down)
4-- came home...got my ratchet, went underneath, fitted the socket on the sensor (YES! it did lock), made sure the cat was cold and it was!!!, set the ratchet to *LEFT LOOSY* and i locked it up onto the socket then i got my leverage pipe!!! and turned........o and did it turn.....the sensor didn't move and i took of the socket and the edges were fucked!!!...

can anyone tell me what i did wrong?!?!?! and now how the hell am i gonna get this damn thing off???? im starting to get annoyed...anyone HELP!!!! PLEASE.....

o yea like JOOTZ added i tried WD-40...and still no!...and the o2 sensor is on the CAT so that write up on EVOMOTO didn't help...

[JOOTZ]

try WD40















.
http://img219.imageshack.us/img219/2664/whybanggp7.gif

[LB_CT9A]

try WD40















.
http://img219.imageshack.us/img219/2664/whybanggp7.gif


already tried that...i forgot to add that on but yea...WD-40 is a no go...

[Terenus]

There's this spray called Nut Buster. Try that.

[LB_CT9A]

NUT BUSTER?! damn...what about it being stripped??? how am i gonna get a good grip???

[turbolarry]

Heat it up.
I had a terrible time getting an O2 off of my Eclipse one time.Â* I hit it with everything I had and it didn't budge.Â* I finally gave up and drove down to the muffler shop.Â* They put it right on the lift, got a small wrench, got it out, and said "twenty bux."Â* Just the drive down heated it up enough to come out.
Since it's cool right now spray it down with PB Blaster.Â* It's some really stinky stuff that can't be good for our groud water, but it pentrates and works.
Go for a drive and heat up the exhaust.
Get under the car and clamp down on the O2 sensor with a vise-grip.
Unscrew it.Â* Use some kind of pipe for leverage if you have to.
Replace the sensor.
Heat it up.Â* It'll come out. O0

[C-Spec]

this have been cover so many times before. get the right tools O0
http://www.zdmak.com/wbstore/images/WWW8400.jpg

[speedracer2169]

Look under the passenger seat and you will see the plug for the sensor. Unplug it and feed it down the hole. Remove the cat with the sensor attached. Borrow a torch and heat the area and use a porn end 22 mm wrench and you will be set

[LB_CT9A]

this have been cover so many times before. get the right tools O0
http://www.zdmak.com/wbstore/images/WWW8400.jpg


thats the same socket that fuckin stripped it!....

[JOOTZ]

.
http://img219.imageshack.us/img219/2664/whybanggp7.gifhttp://img219.imageshack.us/img219/2664/whybanggp7.gif
http://img219.imageshack.us/img219/2664/whybanggp7.gifhttp://img219.imageshack.us/img219/2664/whybanggp7.gif
http://img219.imageshack.us/img219/2664/whybanggp7.gifhttp://img219.imageshack.us/img219/2664/whybanggp7.gif
http://img219.imageshack.us/img219/2664/whybanggp7.gifhttp://img219.imageshack.us/img219/2664/whybanggp7.gif







..

[LB_CT9A]

THANK YOU TURBO LARRY!!!! heating it up broke it off!!! hahahA!!!! i got it on..i'll post pics up in a couple of days!!! thanks thO!!!! o yea..and speedracer2169 i was gonna do that next!!!...but yea..i went down the block gunned it once..came back and took it off!!! i love this site..thanks to everyone!

[JOOTZ]

it works bro





















.
http://img148.imageshack.us/img148/7551/9ef1aac038xe0.jpg

[turbolarry]

Glad to be of help. O0

[philthyevo]

Will generic O2 sensors work with the EVO IX?


I have an IX.Â* I was trying to switch my cat for a HFC yesterday and after I unscrewed the O2 sensor I saw that right below the sensor, the screw's thread was gone.Â* I am told that I need a new O2 sensor but that runs 300-400 bucks!Â* :-\

Can I somehow attach the O2 sensor to the HFC even though the thread on the O2 sensor is gone?

Can I just JBWELD it?

[vegas702evo]

My O2 sensor is somehow really tight on my cat that I can't take it off I have tried it and so has my friend and seems that it stripping the nut slowly. Is there anything I can try to spray on it without damaging the sensor to loosen it up?
Thanx

[Neji Hyuga]

Get some Liquid wrench that would help. If the tools you are using don't work then go to auto zone tell them u need to take off a o2 sensor they have a tool that u can use its like 16 bucks and it will work and when your done take it back and they give you ur money back O0

[tanK]

I had problems taking mine off as well, but the thread on my o2 seemed to be f'ed up from factory... I just used the handle of a jack to use as an extension and slowly unbolt it.

[bbar]

Try an air impact driver with an O2 sensor removal socket (if you don't have one, a local tire or exhaust shop might try it for you if you're polite). If it's still too tight, try spraying some PB Blaster where the sensor screws into the bung.

[turbolarry]

Drive it around the block a couple of times. You need to heat it up and that's the easiest way, unless you have a torch. If it's cool right now and you have some spray (PB Blaster, Liquid Wrench, etc.) spay it down. Go for a drive, warm it up, jack it up and it will come loose.
http://www.socalevo.net/index.php?option=com_smf&Itemid=37&topic=30439.0

[tanK]

WTF? Heat it up? I would think that hot metal expands and is harder to take off... anyways mine was difficult hot and cold...

[fusionchicken]

how many miles are on your IX? i took mine off when i had about 8,000 miles, and it was middle of the night cold as all hell (things are always easier to remove when a bit warm in my experience)

i applied some lubricants all around the shit and it made things a lot easier....i unscrewed the thing all by my lonesome too, so u should be able to do it with friends...i did it with a wrench

just remember when you put the o2 sensor back in (whether the midpipe of your catback or w/e) apply anti-seize all over the threads of the bolt so this shit won't happen again....

[trinydex]

yeah soak it in some sort of thread lubricater then when you reinstall use the antiseize.

[imrmental]

WD- 40 =]

[trinydex]

bump for merge

[LB_CT9A]

i had the same problem man!!!..drive around alittle bit..use a vice-grip..tighten that mutha up TIGHT!!! and turn man..it worked for me..no lie!!! give it a shot...

[trinydex]

and when you need to take it off again??

[cheenky]

I wouldn't heat it up too much, O2 sensors tend to strip threads when they are attempted to be removed at operating temps.Â* I have seen it happen to other people, and I myself have done it a couple of times, being impatient and trying to get the job done as fast as possible, instead of letting everything cool down. I have never stripped an O2 sensor thread while taking it out cold.Â* best advice i can give would be to find a position that gives you the most leverage and spray pb blaster on it and let it soak for about 10 min, the spray again before attempting to remove.

philthyevo: if you can provide a pic, I would be able to tell you if you have enough material to re-tap the O2 sensor, or at least get it to a workable condition.

ooops, I didn't read the dates on the last few posts. well, hopefully I can help someone...

[Evolutionized]

i used a wrench... almost stripped it.. then sprayed a lil PB blaster in the threads and worked it off...

scared me for a seconds but it all worked out

[Evolutionized]

oh yah! ^^ i took mine off wiht 5000 miles on my car