There are no seals available, need to buy a new swirl-valve mechanism with a new arm. Take the injectors out, remove valvecover with gasket, remove old swirl-valve mechanism en install new one. Put valve cover back with new gasket, install injectors and fuel lines, bleed the fuel system and calibration/adaption of swirl-valve motor is required.

 

Thank you for very informative answer, so basically the spindle of the swirl pot butterflies is worn and letting oil+boost out near the control arm? Do you know the process for recalibrating the servo motor?

 

I've got the same leak on the same engine, though mine is a 06 V70.

The swirl Arm itself is notorious for coming off or breaking. The previous owner put on a modified one, which has never been an issue for me. Something to look in to.

While you're in there, it's worth giving the egr pipe and mixer a good clean. I was also going to clean out the injector seats etc.

In preparation to doing the job, I found this video which you may find helpful.

Sent from my SM-G960F using Tapatalk

 

Recalibrating the motor from the swirl-valves can be done with vida.
Cleaning the egr mixer is also a good thing..
( and write it out of the engine management system is a good option, done it 9 years ago,never had any problems with it....)

 

Thanks for helpful replies, Yes I may strengthen the actuator rod while I have it in bits.

 

When you install a new swirl-valve assembly with a new arm, and recalibrate the motor, it will last for thousands of miles/km’s.....

 

This is the state mine was in at 143,000 miles.
As above replace arm and the flap rod.
Not a clean job.
The car will probably run a lot better after you give it a good clean out.
Be careful to clean the injector seats very carefully, and use new seals.

 

I see, that is pretty clogged up. I guess I should budget some extra time to clean out all the manifolds when I take it off. My intercooler is also leaking, I guess I could do both jobs at the same time.

 

Hi hope you don't mind me messaging you, Ive removed the cylinder head on my 2007 xc90 d5, I originally started the job to replace rockers and lifter, new swirl flaps too, I cleaned too much carbon out of ports which ended up jamming between valves and pistons stopping rotation by hand, so no I've removed head and I'm thinking of replacing a few inlet valves as some tips are damaged slightly with grooves from the rockers, I see from your pics you had wear marks on your valve tips but it's hard to tell how bad they were, did you change your valves? Should I change mine, thanks would only change the damaged ones View attachment 174862
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