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MUsXtrail
X-TRAIL NEWBIE
Date Registered: 10-2021
Location: Brisbane North, QLD
TOTAL POSTS: 8
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Re: Oil on the air filter and Oil Separator Leaks (T31 Diesel)
I have just bought from a dealer a 2008 T31 TL auto 2.0L diesel, 133,000km.
After picking it up and taken a closer look at home, I realised that there was oil on the air filter as well as quite a bit at the bottom of the air filter housing. I cleaned it up and started monitoring it for driving over 500km or so. There is still a little bit of oil blowing back into the air filter housing but not visually staining the air filter itself.
When I brought the car to the dealer's mechanic, the latter said he tried to switch to a different Turbocharger Booster Control Solenoid Valve but that did not work and so he put back the old one. He then told me not to worry about and that it was an acceptable engine oil blow-back or blow-by.
I am not sure about his diagnosis as he did not give more details when I asked.
Does anyone know a more knowledgeable mechanic on this issue in the Brisbane area whom I can seek another opinion? Better still, if there are some more knowledgeable mechanics on this forum please help me with this.
I have read that some of the members here have gone with installing the oil catch-can, Provent 200, etc. If that is going to solve the issue, then I will also do that but wondering if I need to open things up to check for accumulated soot/particles that have clogged up somewhere?
Any input would be helpful and appreciated.
Thanks.
Cheers
Dan
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Dan
North Brisbane
2008 T31 Nissan X-trail (4x4) TL Auto 6-spd
Diesel 2.0-litre dCi (direct Common-rail injection)
M9R engine (1,997 c.c.) 110kw @4,000rpm, 320 N-m @2,000rpm
Odo 133,600km
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13/Oct/2021, 8:33 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6249
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Re: Oil on the air filter and Oil Separator Leaks (T31 Diesel)
Hi Dan,
Yes definitely install the Provent.
The M9R engine has issues with the oil separator in the top of the engine not being able to handle internal pressures very well as detailed on page 1 of this thread.
It would also be advisable to check the intercooler for accumulated oil and clean it out, as well as cleaning the EGR valve of any accumulated soot deposits.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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13/Oct/2021, 10:29 pm
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MUsXtrail
X-TRAIL NEWBIE
Date Registered: 10-2021
Location: Brisbane North, QLD
TOTAL POSTS: 8
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Re: Oil on the air filter and Oil Separator Leaks (T31 Diesel)
Hi Kev
Thanks for your reply.
Do you think it is necessary to look also at and clean out the following:
1. Intake manifold
2. Turbo charger
I've not tackled taking these apart before, do I need special tools other than the usual bolts and nuts concerned? Any resealing, gaskets replacement, etc.?
With regards to the catch can, I've seen the Provent 200 selling between Au$170 and Au$315. Also, there is the copy versions from China selling for under $50 with the stainless steel filter.
Do you know if the Chinese made ones would be suitable to do the job? If not, where would you recommend getting the German original one from?
Cheers
Dan
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Dan
North Brisbane
2008 T31 Nissan X-trail (4x4) TL Auto 6-spd
Diesel 2.0-litre dCi (direct Common-rail injection)
M9R engine (1,997 c.c.) 110kw @4,000rpm, 320 N-m @2,000rpm
Odo 133,600km
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14/Oct/2021, 9:23 am
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6249
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Re: Oil on the air filter and Oil Separator Leaks (T31 Diesel)
Not having a diesel myself Dan, I can only comment based on what other members have said in forum posts, so I suggest you read through the whole thread and search for provent to see if there are any other posts mentioning it and maybe where they bought it from.
Personally I would not want to trust a chinese copy when buying something to protect an expensive engine so go with the true provent that others here know works.
Hopefully someone with a diesel who might have fitted a provent will come along and let you know what else they cleaned.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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14/Oct/2021, 11:23 am
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6249
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Re: Oil on the air filter and Oil Separator Leaks (T31 Diesel)
If you've already had oil on your air filter, don't forget to check the intercooler for oil and clean it out, along with giving the EGR valve a clean also. You'll find posts on how to do that if you search the forum.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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29/Dec/2021, 9:46 am
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