O2 housing removing t25

[Fabian972]

I removed my heat sheild and found only two turbo manifold bolts holding up the turbo WTF . The other two were completely missing and one bolt looked like it didn't belong there I say this because there was a nut holding one of the bolts on to the manifold. Side note stock heat sheilds look great with a little mothers polish Sorry about that .My question is when removing T25 do you have to disconnect the o2 from the exhaust?

 

[diablos991]

Yes, you do have to disconnect the o2 sensor. You also have to disconnect your downpipe. You remove the o2 housing from the turbo while it is out of the car.

That nut is normal. The turbo in stock form is held on by 3 bolts and 1 stud. Most people (including myself) remove the stud and replace it with a bolt.


P.S. don't forget to torque everything to spec and use NEW crush washers and gaskets.

 

[diablos991]

Here are some pics to help you with torque specs, and an exploded view:

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If you have any questions about the removal/install, feel free to PM me.

 

[Fabian972]

Here are some pics to help you with torque specs, and an exploded view:

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If you have any questions about the removal/install, feel free to PM me.

Alright thanks Shawn for the help. Already use one can of PB an got another just in case
yeah i got all new bolts gaskets and washers even some steel braided lines for the feed and return oil lines Da mn they hurt when putting the fittings on Is there any kind of cream i should use on the fitting threads to keep oil from dripping threw?

 

[daren_p]

Are you talking about the O2 housing or the O2 sensor? Well you don't have to remove either. You have to remove the lower heat shield first which can be tricky with the O2 sensor still screwed in, but defently can be done. I have always taken mine off as a complete assembly & removed the sensor & housing from the turbo on the bench. Main reson I leave it in is I don't have the proper O2 socket, so have to take it out with a wrench off the car. So you can do it either way. The O2 housing, not sure if you can take it off with the assembly in the car, have never tried as it looks to be way to much of a hassle & is just much easier to take it out as a complete assembly. As for the turbo to manifold bolts, yes diablos999 is correct, they use 3 bolts and one stud with a nut. Best idea is to replace them all & get 4 bolts as the stud/nut combo can be a pain when removing/installing.

 

[Fabian972]

Are you talking about the O2 housing or the O2 sensor? Well you don't have to remove either. You have to remove the lower heat shield first which can be tricky with the O2 sensor still screwed in, but defently can be done. I have always taken mine off as a complete assembly & removed the sensor & housing from the turbo on the bench. Main reson I leave it in is I don't have the proper O2 socket, so have to take it out with a wrench off the car. So you can do it either way. The O2 housing, not sure if you can take it off with the assembly in the car, have never tried as it looks to be way to much of a hassle & is just much easier to take it out as a complete assembly. As for the turbo to manifold bolts, yes diablos999 is correct, they use 3 bolts and one stud with a nut. Best idea is to replace them all & get 4 bolts as the stud/nut combo can be a pain when removing/installing.

Sorry i was reffering to removing the o2 housing with out having to disconnect it from the exhaust.Trying to take apart least as possible. Yeah the lower heat sheild was a pain in the ace to remove because of the sensor. But I was able to remove it with the sensor still attached it took to vice grip and alot of twisitng. The heat sheild is made up off a couple of aluminum piece over laping each other. So i broke what held that section together it's still usable . All this so not to remove the o2 sensor