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  #37  
Old 03-30-2010, 07:40 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
The tech you spoke with is absolutely correct. There aren't enough of these engines with higher mileage here in North America yet, to be able to exhibit the issues we speak of. This engine has only been in use for about 2 years here, and techs haven't consistently seen enough "comebacks" for this to be a well known issue. This engine has been in use since 2005 in Europe and there are well-documented examples of this causing premature problems.

Blowby oil vapor passing from the crankcase vent thru the turbo, intake and intercooler and being recombusted, while dirty and not great for the inner workings of the engine, is not catastrophic. However, it does appear to be deadly for the swirl system. As I understand it, there is a "swirl motor" that operates 6 "swirl" flaps that do just what they sound like. They actuate to create a swirling effect for the air entering the combustion chamber. The recirculation of the crankcase vapors meeting sooty EGR, goops up the swirl flaps, as well as the pooled oil on the top of the motor that leaks into the swirl motor itself, damages the swirl motor. These two tendencies are the problem. The new seal for the intake tube is supposed to correct the leaking/pooling of oil in between the cylinder banks, thus protecting the swirl motor, but only a CCV filter system can clean the crankcase vapor to protect the swirl flaps. Here's what clogged/damaged swirl flaps look like as well as the pooled oil that has leaked all over the top of the engine and varnished the oil cooler.

I've done the Racor CCV mod to help keep the inside of the engine as clean as possible. I hope to get the InMotion ECM engine tune that reduces EGR function for the sole purpose of reducing the amount of exhaust gases that are sent beck thru the engine. All this in the name of longevity.

These pics were taken and posted by a Chrysler Master Tech overseas, who has reapeatedly seen this problem. This was on a Euro spec Chrysler 300 sedan with our exact engine.
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  #38  
Old 03-30-2010, 10:08 PM
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Re: Post your Provent/Racor setups

the pics are gruesome.. but in one of his responses he mentions the flaps and says the newer engines don't have them .. Perhaps he was speaking of the Bluetech... because you state that motor in the 300 was the same as ours...Guess I will get one of those Racors and jury rig it. Too bad Mercedes or Jeep didn't think to engineer one in the system already.
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  #39  
Old 03-31-2010, 06:32 AM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
the pics are gruesome.. but in one of his responses he mentions the flaps and says the newer engines don't have them .. Perhaps he was speaking of the Bluetech...
All of the new generation of V6 Benz diesels have the swirl system. It's for more complete combustion and the first step in reduced emissions. Our engine is the exact same engine as in the 2007-09 "Bluetec" Mercedes E,ML & GL "320" CDIs. Even though they are called 320 CDI, suggesting 3.2L displacement, and thus a different engine, they are the exact same 2.987L displacement and engine. The only difference is the "Bluetec" designation which comes from an additional emissions control system called "urea injection". The Benzes have a tank of fluid that has to be refilled at each oil change called urea that is injected downstream into the exhaust to somehow reduce emissions even more than just with the CATs & DPFs that ours has. I was glad when I found out that the CRD Jeep didn't have the urea injection. Just one more thing to add to running costs. That's also why the Jeep only passed 45 state emissions for new car sales and wasn't available in Cali, Vermont,etc.

Find a local diesel tech if you feel uncomfortable installing a CCV filter system. If done wrong, it can do serious damage. A close friend of mine who builds and races Prostock 1/4 mile race cars referred me to his tech who helps him with his engine builds. They run custom made "CCV air/oil separators", as they called them, in the race cars beacause with high compression race engines with over 1000hp, there is a lot of blowby. They also installed them on the diesel trucks they use to tow the cars to races. He helped me design my setup and fab the parts I needed. It was a cool experience.
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  #40  
Old 03-31-2010, 08:58 AM
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Re: Post your Provent/Racor setups

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Originally Posted by CRD Dawg View Post
Find a local diesel tech if you feel uncomfortable installing a CCV filter system. If done wrong, it can do serious damage. A close friend of mine who builds and races Prostock 1/4 mile race cars referred me to his tech who helps him with his engine builds. They run custom made "CCV air/oil separators", as they called them, in the race cars beacause with high compression race engines with over 1000hp, there is a lot of blowby. They also installed them on the diesel trucks they use to tow the cars to races. He helped me design my setup and fab the parts I needed. It was a cool experience.
I know just such a guy......and as an aside... you seem to know a lot for a non expert, novice wrench turner... If you are a novice... I must be unborn.. ahahahhaa. Thanks for the info..and incidentally, the dealer knows nothing of what I was talking aobut re oil at the turbo. He suggested to bring it in, but of course, it should relatively dry as I cleaned it this weekend.
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  #41  
Old 03-31-2010, 08:11 PM
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Re: Post your Provent/Racor setups

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Originally Posted by AB Jeepster View Post
I know just such a guy......and as an aside... you seem to know a lot for a non expert, novice wrench turner... If you are a novice... I must be unborn.. ahahahhaa. Thanks for the info..and incidentally, the dealer knows nothing of what I was talking aobut re oil at the turbo. He suggested to bring it in, but of course, it should relatively dry as I cleaned it this weekend.
Everything I know about these trucks is from over 2 years of research on the internet trying to learn everything I can about them because servicing these SUVs in the future will be a pain. These trucks came and went so fast in the U.S. (2 model years), that the Chrysler/Jeep techs never even got trained on them. I know. I work at a "5 Star" Chrysler/Jeep dealership and the techs have NO clue how to work on them. I've owned a few Benz diesels in the past and did minor maintainance on them and plan to do the same with this one...
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  #42  
Old 04-01-2010, 09:05 AM
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Re: Post your Provent/Racor setups

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Originally Posted by CRD Dawg View Post
Everything I know about these trucks is from over 2 years of research on the internet trying to learn everything I can about them because servicing these SUVs in the future will be a pain. These trucks came and went so fast in the U.S. (2 model years), that the Chrysler/Jeep techs never even got trained on them. I know. I work at a "5 Star" Chrysler/Jeep dealership and the techs have NO clue how to work on them. I've owned a few Benz diesels in the past and did minor maintainance on them and plan to do the same with this one...
That is sad... same here I suppose. and the Mercedes dealers won't touch them...
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  #43  
Old 04-14-2010, 02:34 PM
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Re: Post your Provent/Racor setups

Quote:
Originally Posted by CRD Dawg View Post
The tech you spoke with is absolutely correct. There aren't enough of these engines with higher mileage here in North America yet, to be able to exhibit the issues we speak of. This engine has only been in use for about 2 years here, and techs haven't consistently seen enough "comebacks" for this to be a well known issue. This engine has been in use since 2005 in Europe and there are well-documented examples of this causing premature problems.

Blowby oil vapor passing from the crankcase vent thru the turbo, intake and intercooler and being recombusted, while dirty and not great for the inner workings of the engine, is not catastrophic. However, it does appear to be deadly for the swirl system. As I understand it, there is a "swirl motor" that operates 6 "swirl" flaps that do just what they sound like. They actuate to create a swirling effect for the air entering the combustion chamber. The recirculation of the crankcase vapors meeting sooty EGR, goops up the swirl flaps, as well as the pooled oil on the top of the motor that leaks into the swirl motor itself, damages the swirl motor. These two tendencies are the problem. The new seal for the intake tube is supposed to correct the leaking/pooling of oil in between the cylinder banks, thus protecting the swirl motor, but only a CCV filter system can clean the crankcase vapor to protect the swirl flaps. Here's what clogged/damaged swirl flaps look like as well as the pooled oil that has leaked all over the top of the engine and varnished the oil cooler.

I've done the Racor CCV mod to help keep the inside of the engine as clean as possible. I hope to get the InMotion ECM engine tune that reduces EGR function for the sole purpose of reducing the amount of exhaust gases that are sent beck thru the engine. All this in the name of longevity.

These pics were taken and posted by a Chrysler Master Tech overseas, who has reapeatedly seen this problem. This was on a Euro spec Chrysler 300 sedan with our exact engine.
Should not be a surprise. I spoke with my friend who works at a local Chrysler Jeep dealer here in calgary. He took my photos to the service administrator who said the pics dislpay a normal situation with nothing to worry about.
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  #44  
Old 05-20-2010, 11:41 AM
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Re: Post your Provent/Racor setups

The only thing I have yet to learn before I make my purchase is how many members that purchased a Racor can tell me if it is a left or right inlet setup I have to buy. I found their site, (Parker-Racor) and their models (CCV35 and 4500) have that designation. I jsut don't wanna buy the wrong one and then have to jury rig it.... thanks in advance..
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  #45  
Old 06-30-2010, 04:06 AM
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Re: Post your Provent/Racor setups

I live Australia just brought my 2nd WK CRD 1st 2007 60,000 kms (KN air fliter & chipped) 2nd 2010 Limited 1000km's will have (KN filter & put chip on about 5000k's does make a difference. Of the 60,000ks I was towing a 23' Caravan for 15,000ks of them, changed the oil every 5,000k's (nut's I been told before).

I have no idea or herad of anyone in Aust doing the mod's above or have any such issues.
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  #46  
Old 07-15-2010, 05:46 PM
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Re: Post your Provent/Racor setups

This is a great thread. I dont own a CRD but i would like to and i am glad i read all of this valuable information about the CRD.

This thread should be made a Sticky.


Now my question is, to those looking to buy a used CRD, if someone buys a used CRD WK and it has over say 50k miles on it and the damage has been done since it was new, is there anything that can be done to clean up the engine and its internals before fitting it with a filter kit? So to reverse the damage that has already been done.
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  #47  
Old 08-10-2010, 04:33 PM
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Re: Post your Provent/Racor setups

I have just ran into the problem at 170,000k in Aus,I need a man that knows these motors any thoughts Marlin?
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  #48  
Old 08-10-2010, 07:32 PM
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Re: Post your Provent/Racor setups

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Now my question is, to those looking to buy a used CRD, if someone buys a used CRD WK and it has over say 50k miles on it and the damage has been done since it was new, is there anything that can be done to clean up the engine and its internals before fitting it with a filter kit? So to reverse the damage that has already been done.
I was wondering this too, for example using a pressure washer to clean the area below the intake tube makes me nervous.
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