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2008 XC90 3.2l Upper Gaskets

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).
PoppySheaf
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2008 XC90 3.2l Upper Gaskets

Post by PoppySheaf » Mon Jan 14, 2019 9:16 pm

First time Volvo owner. Going to resolve some upper engine oil leaks.
If I understand it correctly, there is both a Camshaft cover and a Oil Trap/PCV cover.

I can see from the parts sellers the Oil Trap cover takes a gasket and PCV.
I'm having trouble zeroing in on whether or not the Camshaft cover takes a gasket or just sealer.

Any help please. As always thanks.
Volvo 3.2L.jpg
Volvo 3.2L.jpg (32.2 KiB) Viewed 389 times



jimmy57
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Re: 2008 XC90 3.2l Upper Gaskets

Post by jimmy57 » Mon Jan 14, 2019 11:20 pm

The black plastic crankcase breather assembly is sealed with rubber O ring. The cam cover is sealed with anaerobic sealer. That cover will not come off unless the rear engine cover for timing chain, timing chain, cam gears, inner chain case, intake manifold, and alternator are all removed. The back set of bolts for that cover are under the inner chain case and some bolts for inner chain case go into the cam cover. The top covers are not known to leak externally. Besides taking a lot of time to dismantle the timing chain case and timing parts there are a number of special tools needed for seal installation and timing the engine. This engine is like so many these days that do not have pins or keys to hold gears to cams. The crank is set to a position with a tool as are both cams. Then the cams use a counterhold tool to hold cams while gear bolts are torqued.



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ggleavitt
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Re: 2008 XC90 3.2l Upper Gaskets

Post by ggleavitt » Tue Jan 15, 2019 8:06 am

Somewhat common, you'll see more and more if you do a general search for B6324 oil leaks. Guy from Massachusetts will likely post when he see this, here's a blast from the past in the meantime- https://forums.swedespeed.com/showthrea ... &styleid=4

Write-up on B6324 engine oil consumption may be found here- http://www.pennantmotors.com/personal/s ... -05-15.pdf, breather box is one issue mentioned.


2005 2.5T AWD-195k
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PoppySheaf
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Re: 2008 XC90 3.2l Upper Gaskets

Post by PoppySheaf » Tue Jan 15, 2019 8:35 am

Great info as always! Thanks!



jimmy57
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Re: 2008 XC90 3.2l Upper Gaskets

Post by jimmy57 » Tue Jan 15, 2019 9:13 am

Head reseal is rarely the fix. If poor top cover sealing causes oil consumption then the plugs will have deposit levels falling in descending order 6-5-4-3-2-1 since the port the oil leaks into feeds vent holes in intake runners from rear. Often this causes cylinder misfire codes when the oil consumption hasn't been noted by owner.



Masscomguru
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Re: 2008 XC90 3.2l Upper Gaskets

Post by Masscomguru » Tue Jan 15, 2019 4:28 pm

ggleavitt wrote: ↑
Tue Jan 15, 2019 8:06 am
Somewhat common, you'll see more and more if you do a general search for B6324 oil leaks. Guy from Massachusetts will likely post when he see this, here's a blast from the past in the meantime- https://forums.swedespeed.com/showthrea ... &styleid=4

Write-up on B6324 engine oil consumption may be found here- http://www.pennantmotors.com/personal/s ... -05-15.pdf, breather box is one issue mentioned.
Oh. yeah.. it's been a while on that one. The cover replacement sealed it up for the remaining 110k miles I had the 3.2.



PoppySheaf
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Re: 2008 XC90 3.2l Upper Gaskets

Post by PoppySheaf » Wed Jan 16, 2019 1:50 am

I've noticed accumulated oil leakage down on the PCV side onto the top of transmission.
Switching out the transmission in a few weeks and wanted to address origin of leak(s) while I have good access to this area.
Thanks for the detailed responses. Joined a month or so ago and this site forum is great and all the accurate and detailed responses are great as well.



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