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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Positive Crankcase Ventilation Hose
I noticed that there were traces of oil on the outer pleats of the air filter in a perfect circle where the hose joins the box. So I'm thinking that the vent hose that joins the main air intake into the turbo is actually venting back the wrong way and getting all the way back to the air box.

It's not much but taking the hoses off there were traces of oil throughout. Worth a clean and as I think the air filter is evenly sided maybe turning the filter through 180 degrees after a year?
Post #423408 14th May 2015 8:36am
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
normal to get small amount of oil through the breather pipe

be honest why would you bother to swap filter round as don't you have it serviced once a year , so should just get changed any way
Post #423425 14th May 2015 10:10am
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Renewing the air cleaner is a B service item so it's replced every 2 years or 24k. I just thought that if you follow this, then swivelling it after 12 months would give you a "new" clean face on the output side.
Post #423428 14th May 2015 10:53am
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gilarion



Member Since: 05 Dec 2013
Location: Wales
Posts: 5109

Wales 2007 Defender 90 Other CSW Trident Green
^^^
That sounds sensible to me. For those who like Welsh Mountains and narrow boats have a look at my videos and photos at..

http://www.youtube.com/user/conwy1
Post #423430 14th May 2015 11:02am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Fit an oil catch can like a Provent perhaps? If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #423453 14th May 2015 12:15pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Provent is an option - but a little expensive & haven't people had issues with mounting it all in the confined space?
Post #423454 14th May 2015 12:17pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
As with yourself I have an XS and yes it was indeed a tight fit. There are also Provent copies about but a genuine one was £109 delivered (see thread below). I have cleared out my gallery but if you do commit just drop me a 'pm' and I can send you all the fitting instructions. Thumbs Up

http://www.defender2.net/forum/topic28919....p;start=30 If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #423455 14th May 2015 12:23pm
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tatra805



Member Since: 16 Aug 2011
Location: Dolany
Posts: 436

Slovakia 2008 Defender 110 Puma 2.4 CSW Bonatti Grey
waiting for my pro-vent 200 to clear customs, should come in tomorrow

searched around and could not find cheaper (all in) than buying it in australia, company called sydneyfilters also on ebay, about 88£ delivered if i remember correctly.

Local MAN&HUMMEL dealer was 25 £ more expensive on a 100 model with a 4-8 weeks delivery time Shocked

Hope i'll have the place to fit it as i do have my webasto and airhose taking up space around the vent pipe

Thumbs Up
Post #423464 14th May 2015 12:45pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3639

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
or just vent the engine to atmosphere (via an oil catcher and filter) and plug the hole in the filter pipe, removes any chance of combustion gases oiling up your intercooler , turbo and egr, just fit the pipe back for the MOT. (all old cars / engines were vented to atmosphere and it is only emission regs that suggest you should do otherwise) DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #423544 14th May 2015 4:54pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
some of the idea is that by venting engine to intake pipe is that the inside of the engine is under slight vacuum preventing oil leaks

if you have a weak oil seal air will be drawn in rather than oil leak out , so not really advisable to vent to open air
Post #423551 14th May 2015 5:05pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3639

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
Munch I would agree if you have a leaky old engine. However a leaking seal is actually better fixed than hidden by vacuum in the crank case. I agree a filter should be used, my 90 has run for about 5k without the pipe connected and the hole in the air box pipe blanked. I have a tdi separator as a catch tank and a small filter venting so far so good and no oil leaks (I am only at 13k miles) What I have not got is any oil ahead of the turbo from the oil in the combustion gasses, I'm happy to carry on testing this for everyone else. I would however have fitted the provent in preference if more space had been available as they are great bits of kit. DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #423570 14th May 2015 6:33pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
you don't need a leaky old engine , rear crank seals aren't the best on tdci when new !
Post #423596 14th May 2015 7:39pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3639

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
will keep an eye on it, I'm assuming it was fine when the clutch was replaced about 400 miles ago by Guy Salmon DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #423598 14th May 2015 7:45pm
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BykerPete



Member Since: 02 Feb 2015
Location: Midlands
Posts: 159

United Kingdom 2014 Defender 110 300 Tdi CSW Willow Green
munch90 wrote:
you don't need a leaky old engine , rear crank seals aren't the best on tdci when new !


Similar problem but maybe a different cause?

I took the big hose off that goes into the turbo (the one that has the breather pipe coming off it) and found slight traces of oil there and also on the inlet side of the turbo. Not a lot of oil, more of a smear than anything - oil is also very black even though an oil and filter change has just been done.

Engine has done 16,500 miles.

Is this anything to worry about and what - if anything could be causing it?

Thanks in advance,

Pete.
Post #426884 28th May 2015 2:43pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Pete - that sounds like it is working as it's designed to do. Pull your air filter and check to see if you have any oil on the clean side facing the output hose. That was my issue.

I also have a leaking rear crank seal, so any slight vacuum is not keeping up with that! The crank seal is being replaced...and I thing the ventilation hose will be vented elsewhere and blanked off from the clean side soon as well.
Post #426904 28th May 2015 4:43pm
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