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  #25  
Old 03-29-2010, 07:48 AM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
couple of more pics.
Great pics. Looks like a fair amount of oil though. A CCV filter system would really clean that up. The center and right pictures look like the area beneath the turbo intake is pretty varnished with old oil that leaked thru the seal.
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  #26  
Old 03-29-2010, 09:37 AM
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Re: Post your Provent/Racor setups

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Originally Posted by CRD Dawg View Post
Looks like a fair amount of oil though. A CCV filter system would really clean that up. The center and right pictures look like the area beneath the turbo intake is pretty varnished with old oil that leaked thru the seal.
yeah, its hard to predict what is a normal amount of oil. I think it depends on what weight of oil is used and it depends on how the vehicle is used (e.g. city driving vs highway driving) as RPMs seems to influence how much blowby occurs.

as CRD Dawg pointed out, the area beneath the turbo needs to be kept clean. It's the leaking oil that seeps under the turbo that finds its way to the swirl motor that eventually will cause your jeep to stop running and a $1000 repair bill. I pulled off my intake tube last night and did a quick wipe down of the orange seal and the area beneath the turbo. Even with my Racor, I'm still seeing some oil residue.
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  #27  
Old 03-29-2010, 09:56 AM
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Re: Post your Provent/Racor setups

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Originally Posted by CRD Dawg View Post
Great pics. Looks like a fair amount of oil though. A CCV filter system would really clean that up. The center and right pictures look like the area beneath the turbo intake is pretty varnished with old oil that leaked thru the seal.
It's a black plastic piece.. and yes. there was some oil residue on it as well...
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  #28  
Old 03-29-2010, 10:07 AM
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Re: Post your Provent/Racor setups

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Originally Posted by suzieque View Post
yeah, its hard to predict what is a normal amount of oil. I think it depends on what weight of oil is used and it depends on how the vehicle is used (e.g. city driving vs highway driving) as RPMs seems to influence how much blowby occurs.

as CRD Dawg pointed out, the area beneath the turbo needs to be kept clean. It's the leaking oil that seeps under the turbo that finds its way to the swirl motor that eventually will cause your jeep to stop running and a $1000 repair bill. I pulled off my intake tube last night and did a quick wipe down of the orange seal and the area beneath the turbo. Even with my Racor, I'm still seeing some oil residue.
.. Well more than half of the total kms are highway.. and sometimes speeds of 80- 85 mph.. thanks to Utah's speed limits in some areas... But I have not checked that area of the engine until yesterday...... so who knows how long that has been going on... but I will be more vigilant now. Going to print off some pics and go to the dealer with them.
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  #29  
Old 03-29-2010, 10:53 AM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
.. Well more than half of the total kms are highway.. and sometimes speeds of 80- 85 mph.. thanks to Utah's speed limits in some areas... But I have not checked that area of the engine until yesterday...... so who knows how long that has been going on... but I will be more vigilant now. Going to print off some pics and go to the dealer with them.
as a worst case, you should assume 1/2 ounce of oil blowby per 900 miles, that is what I've seen in my setup when doing a speedy highway trip.

in theory, all this oil would simply get ingested through the turbo, then through the intercooler, then through your intake, then into the cylinder and burned along with the diesel fuel. the bad news is 2 things happen.
1) some oil seeps past the orange seal and under the turbo. its not clear how much oil will actually cause a failure.
2) some oil mixes in the intake with EGR gas where it clogs up intake causes performance issues, eventually the intake has to be removed and serviced, I lost the mercedes benz post that listed the service period, I think its 100000 miles.
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  #30  
Old 03-29-2010, 03:40 PM
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Re: Post your Provent/Racor setups

Well I sent the pics to a friend of mine that works at the dealer I bought the CRD from.. I asked that they make their way to the service dept to see what they will or are prepared to do. Where did you get your Racor from? There does not appear to be any dealers in AB.
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  #31  
Old 03-29-2010, 04:57 PM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
Where did you get your Racor from? There does not appear to be any dealers in AB.
I got mine from a vendor on ebay, $153 USD shipped. You then need some fittings from Home Depot and oil rated hose from an industrial supply store. CRD Dawg has a sweet looking setup, maybe he can explain where his setup is from.
I also have to assemble a setup for my father inlaw. Instead of a Racor, I'm going to test a Husky brand large oil separator from the Home Depot I saw last week, its about $50 plus fittings and hose. I'm thinking it will work as well as the Racor and be lower maintenance with respect to emptying and lower cost with respect to buying expensive Racor filters. If this setup works well, I may toss my Racor, the problem is a mounting location for oil separator.
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  #32  
Old 03-29-2010, 05:17 PM
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Re: Post your Provent/Racor setups

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Originally Posted by suzieque View Post
I got mine from a vendor on ebay, $153 USD shipped. You then need some fittings from Home Depot and oil rated hose from an industrial supply store. CRD Dawg has a sweet looking setup, maybe he can explain where his setup is from.
I also have to assemble a setup for my father inlaw. Instead of a Racor, I'm going to use a large oil separator from the Home Depot I saw last week, its about $50 plus fittings and hose. I'm thinking it will work near as well as the Racor and be lower maintenance with respect to emptying and lower cost with respect to buying expensive Racor filters.
Thank you for that... wonder why we can't just use a catch can set up like the brothers and sisters with the gas engines do...???? or can we?????
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  #33  
Old 03-29-2010, 06:31 PM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
Thank you for that... wonder why we can't just use a catch can set up like the brothers and sisters with the gas engines do...???? or can we?????
I know of at least 2 other CRD guys with catch cans. There seems to be no strict science to this, its what you test and are comfortable with. Ideally, you want no oil passing back down the tube to the turbo, and no restriction (back pressure) caused by whatever separator you choose.
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  #34  
Old 03-29-2010, 09:00 PM
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Re: Post your Provent/Racor setups

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Originally Posted by suzieque View Post
There seems to be no strict science to this, its what you test and are comfortable with. Ideally, you want no oil passing back down the tube to the turbo.
That's what I've kind of figured out. As long as it can handle the amount of air volume passing thru, I don't think it really matters if it is a diesel specific air/oil separating system or one that's more commonly used on gasoline engines. The main thing is that you don't want excessive back pressure building up in the crankcase as the air(blowby vapor) is fed thru whatever filtering system you end up using.

I got mine from "All Points Marine" in Rhode Island, USA. I've read about others getting them from some place called 4Land/4Sea if I remember correctly. Just google them or Racor. Provent also makes a similar system. I liked the Racor because it had a built in pressure regulator to allow the CCV Filter to go into bypass mode if the filter got overwhelmed with excess pressure.

I think a company called Billet Technologies makes a filter that is used mostly on gas engines...
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  #35  
Old 03-30-2010, 01:46 PM
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Re: Post your Provent/Racor setups

Here is a Q & A on an online Mercedes tech site. Pls feel free to comment..but from what he says (20 year diesel tech.. 10 with Mercedes) he doesn't think the problem is a problem.....

http://www.justanswer.com/questions/...uxca7-7E672B14
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  #36  
Old 03-30-2010, 06:11 PM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
Here is a Q & A on an online Mercedes tech site. Pls feel free to comment..but from what he says (20 year diesel tech.. 10 with Mercedes) he doesn't think the problem is a problem.....

http://www.justanswer.com/questions/...uxca7-7E672B14
interesting read and he re-states what most in this thread have already stated. I can point you to another jeep website where this topic has also been discussed in detail and a Chrysler Master Tech overseas offers his advice that, though what you are seeing is normal, he does suggest buying a filter or catch-can and stopping the oil going to the turbo.
Its your vehicle and its up to you, we can only offer our advice.
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