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Piston rings? Head gasket?

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
Khorn09
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Joined: Tue Mar 26, 2019 2:28 pm
Year and Model: 03 xc90
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Re: Piston rings? Head gasket?

Post by Khorn09 » Wed Apr 17, 2019 1:11 pm

Hey guys, so I'm currently taking the head off of the XC90. I have everything disconnected, intake manifold and exhaust manifold, cams and cam cover. The only thing that told me back right now is the 2 10 mm bolts on the back side of the head on the passenger side holding the coolant pipe on. Right now I have no idea how I'm supposed to get both of those bolts off. I can get the top one off, but the bottom one is blind and in such a position that I can't get a wrench or a socket on it. Any ideas?.



cn90
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Year and Model: 2004 V70 2.5T
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Re: Piston rings? Head gasket?

Post by cn90 » Thu Apr 18, 2019 8:28 am

Search the internet for DIY Volvo 850 HG job.

The steps are almost the same as 2.5T engine.


2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

Khorn09
Posts: 8
Joined: Tue Mar 26, 2019 2:28 pm
Year and Model: 03 xc90
Location: CA
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Re: Piston rings? Head gasket?

Post by Khorn09 » Wed Apr 24, 2019 3:52 pm

Hey guys, regarding that whole debacle. i ended up getting it done, just needed a 1/4" extension and skinny 10mm to get at em. Anyways, while i was down there i noticed that the flexpipe for the cat is seperated. Can I get an exhaust shop to just replace the flex pipe? Or am I best off to get a new catalytic converter? I believe it is the original cat, with 146k miles on it. How long do they usually last? The reason i'm asking is because i have to go get my smog test done after i get it all put back together(California), and a new cat is around $1200.

Regarding the head, it turned out to be really flat. Shop took .007 or so off of it to clean it up. Completely rebuilt the head and did all the valves clearances, valve job, and hot tank for $450.



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