Problem with exhaust

mjstruck · Jul 20, 2006

I am trying to remove my stock exhaust and install an apexi n1 catback exhaust and a t-pros downpipe. The problem I have is removing the stock downpipe from the o2 sensor housing shown in the pic. I am using a thin walled deep socket, but the nut won't seem to budge. My cousin thinks that since the exhaust gets very hot, the screw might of welded to the downpipe. I'm not sure if this is true. Did any of you have this problem when you changed your exhaust? I need some advice on how to fix this problem. Thanks.

Spoolin98 · Jul 20, 2006

Buy some PB blaster and spray the bolts a couple times throughout the day. Use a 6 point socket and get as much leverage as possible, use a breaker bar.

EclipseTrbo420A · Jul 21, 2006

Heat it up....good. Then break it lose.

DSMcrazy3 · Jul 21, 2006

I second the PB blaster. Not everyone has access to sometime to apply heat with. If you've got it, great. Otherwise the PB blaster or liquid wrench will do the job great.

EclipseTrbo420A · Jul 21, 2006

DSMcrazy3 said:
I second the PB blaster. Not everyone has access to sometime to apply heat with. If you've got it, great. Otherwise the PB blaster or liquid wrench will do the job great.

Could just turn on the motor, but they are right if PB cant break it then go boostin and come back jack it up and get it.....or have access to an impact gun?

mjstruck · Jul 21, 2006

thanks guys...i'll go pick up some pb blaster tomorrow and give it a shot. :thumb:

Nanan · Jul 21, 2006

Just run the engine for 5 mins to get the bolts/nuts nice and hot.

mjstruck · Jul 28, 2006

Well I picked up the pb blaster, gave the bolts a good spray, waited a bit, warmed up the car, then tried to remove the bolts but it still won't budge. If I can't figure it out I might just take it to a muffler shop or something similar to have them loosen it. Any suggestions on what else I can do?

EclipseTrbo420A · Jul 28, 2006

mjstruck said:
Well I picked up the pb blaster, gave the bolts a good spray, waited a bit, warmed up the car, then tried to remove the bolts but it still won't budge. If I can't figure it out I might just take it to a muffler shop or something similar to have them loosen it. Any suggestions on what else I can do?

You need some heat man, like a torch or I know if you put it on an air gun they should eventually come off. Goodluck.

Spoolin98 · Jul 29, 2006

mjstruck said:
Well I picked up the pb blaster, gave the bolts a good spray, waited a bit, warmed up the car, then tried to remove the bolts but it still won't budge. If I can't figure it out I might just take it to a muffler shop or something similar to have them loosen it. Any suggestions on what else I can do?

You should keep spraying them throughout the day, let the penetrating spray do its job. Give it a day or two and spray it every once and awhile. If you sprayed it and then started the car, you probably burned all the spray right off the exhaust. Use a long extension with a breaker bar, leverage does wonders!

jott5555 · Jul 30, 2006

ya i hope your useing a long rod for leverage.. you need to get it on there with an extention and just the handle form your jack for leverage.. the more the better.. make sure your going the right way too...

t0ny007 · Jul 30, 2006

def. with the pb blaster!!!! but when i used it i just sprayed it and let it sit for like 20 - 30 minutes and it broke free. just spray it tap the bolt with a hammer and spray it again, then it should break free.

Siral3x · Jul 31, 2006

Torch is the cheapest method if you have one.
PB blaster won't work if you apply it and then start the car

it will burn it off

95WTSI · Jul 31, 2006

hahahaha!!!! I just did that on friday and I am still soar today :thumb:

. All I did was get a 3/4 wrench cause it was longer and just torqued on them till they came loose. Just takes a little time...

mjstruck · Aug 24, 2006

Well i'm back again...i've tried mostly every suggestion and still no progress. Every time I get under the car and try to remove the exhaust I get even more frustrated. I talked to my mechanic and he said he can remove them for me, but he said there is a chance that he will break the exhaust studs. He told me if he breaks them its not his fault and i'm the one that has to deal with it. Now i'm debating on whether I should take the risk and let him remove it, or keep trying to take them off myself. What do you guys think?

Spoolin98 · Aug 24, 2006

Did you try heating them up with a torch? Are you pb blastering them everyday throughout the day? Are you using a breaker bar? The only thing I can think of now is portable compressor. They have portable tanks that you can buy and hook up to a compressor, you pump them up with compressed air and then take just the tank to where you need it and leave the compressor behind. Borrow an impact wrench with some long extensions and tap the trigger on the wrench, don't hold it down. Keep tapping till it breaks loose. As far as broken broken studs go, thats a chance your going to have to take.

AWDTSI153 · Aug 24, 2006

I agree, I used liquid wrench for a day or two and then heated it up with a torch and got it off with an impact wrench. If you don't have access to a torch just go to a local welding shop and offer them a few bucks to use a torch. Good Luck!

RICHDADDY · Aug 24, 2006

WD40 and leverege i used the bar from my jack a good socket crafsman just in case you brake it

EclipseTrbo420A · Aug 25, 2006

Just break em, and get a new evoIII 02.

diablos991 · Aug 25, 2006

With PB blaster and heat, I got mine loose with a regular 3/8" drive ratchet.
That is saying something since I have a 95 and its a Utah car. PB blaster is amazing. But I attribute most of the ease to heat.

mjstruck · Sep 26, 2006

Alright guys i finally got the exhaust off (as you can tell it takes me along time to get stuff done only because of school) but anyways I ran into another little problem. I'm trying to remove the downpipe bracket, and I was able to get the first two off but I can't get the third one up top because there is not enough room to get the socket in there. The bolt on the o2 housing is in the way. How can I get this off?

Here's a pic to show you guys

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diablos991 · Sep 26, 2006

Have you tried a wrench?

mjstruck · Sep 26, 2006

I already tried the wrench, still doesn't work

DSMcrazy3 · Sep 27, 2006

If a socket doest fit in there you can either force the wrench to work(try harder) or take the o2 housing off to allow clearance for the socket/ratchet.

Jeff822 · Sep 27, 2006

What are you taking the bracket off for anyways? You can just leave it there and not bolt the downpipe into it to make things a little easier.

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Problem with exhaust

mjstruck

Spoolin98

EclipseTrbo420A

DSMcrazy3

N/T DSM Wiseman

EclipseTrbo420A

mjstruck

Nanan

mjstruck

EclipseTrbo420A

Spoolin98

jott5555

t0ny007

Siral3x

95WTSI

mjstruck

Spoolin98

AWDTSI153

RICHDADDY

EclipseTrbo420A

diablos991

mjstruck

diablos991

mjstruck

DSMcrazy3

N/T DSM Wiseman

Jeff822

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