Possible ProVent Alternative

jaciii · **Joined:** Mon Jul 31, 2006 9:09 am **Posts:** 25

Got this from the Aussy Jeep board (ausjeepoffroad.com): http://cgi.ebay.com/ebaymotors/OIL-CATCH-RESERVOIR-TANK-CAN-RED-PRELUED-COROLLA-SUPRA_W0QQcmdZViewItemQQcategoryZ46098QQihZ005QQitemZ150040056188QQrdZ1QQtcZphoto

Looks like it might be an alternative to the provent otr the EHM with coke bottle.....

jaciii · **Joined:** Mon Jul 31, 2006 9:09 am **Posts:** 25

EGR valve, new in the box for $205.00 http://cgi.ebay.com/ebaymotors/Mopar-EGR-Valve-Jeep-Liberty-2-8-Diesel-CRD-2005-2006_W0QQitemZ200018492893QQihZ010QQcategoryZ33607QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

Desert_Busa · **Posted:** Sun Oct 01, 2006 8:00 pm

If you got 44 bucks to spare give it a try go ahead... there isn't a lot of info on it. Looks to be about the same size as the provent. Don't see a drain. Must have magic beans inside?

jaciii · **Joined:** Mon Jul 31, 2006 9:09 am **Posts:** 25

I was wondering about the lack of a drain. I figured you just pop that tube off the side at what appears to be a quick disconnect and let it flow.

BioJeep · **Posted:** Sun Oct 01, 2006 9:03 pm

My thought was that the tube is a sight gauge...when full, dump.

Desert_Busa · **Posted:** Sun Oct 01, 2006 9:04 pm

For 44 bucks, I bet its just an empty can. I have the provent, so won't try. Try emailing them to get some more info and whats inside. There needs to be some type of filter element to catch the oil, or else it won't be very efficient.

jaciii · **Joined:** Mon Jul 31, 2006 9:09 am **Posts:** 25

This is a diagram I found of a DIY can. There is steel wool in the bottom to facilitate seperation and a drainplug to empty.

I will inquire about the ebay catch can.

jaciii · **Joined:** Mon Jul 31, 2006 9:09 am **Posts:** 25

I like this one pretty well. Glue up some PVC, pack it loosely with Stainless Steel wool and I think you'd have a winner.

Desert_Busa · **Posted:** Mon Oct 02, 2006 2:08 am

Yeah thats basically what the provent is. good luck putting it all together

Jeger · **Posted:** Mon Oct 02, 2006 5:15 am

The provent is has a coalescing filter element in it. Similar, and perhaps identical to some oil and water seperators for compressed air. I picked up a large 3/4" NPT inlet speedair filter for next to nothing at a flea market, just have never tested it out. The filter element in the provent looks different that the one in the filter I have though. Now if you were going to buy a filter like the one I have new, then you may as well go ahead and get the provent, because they are not cheap.

Ranger1 · **Joined:** Mon Oct 17, 2005 7:40 pm **Posts:** 1137

Quote:

The provent is has a coalescing filter element in it.

The Provent also has a built-in safety to prevent excessive crankcase pressure from damaging seals on the CRD and turbo - it's a pressure relief valve, set to vent to atmosphere if the pressure differential goes above .78 PSI. Whatever you build, make sure it has some kind of pressure relief valve included - the cost of replacing front and rear main oil seals on the CRD will make the $140 cost of the Provent look like a bargain. One additional factor to consider is whether the input/output lines will fit in the limited space inside the CRD engine bay. I believe OldNavy or maybe someone else looked into a RayCor CCV a while back, but it would not fit due to the placement of the I/O connections.

On a related note, I saw some specs on the new Dodge Cummins 6.7Liter diesel engine. They are careful to point out that a "coalescing ccv filter " is standard on the truck. DC is aware of the mess they made on the CRD by leaving one off at the factory. Also of note is the oil change interval on the 6.7Liter Cummins, now equipped with cooled EGR, just like our CRD's - the interval is now down to 7500 miles.

Jeger · **Posted:** Mon Oct 02, 2006 9:49 am

Ranger1 wrote:

Quote:

The provent is has a coalescing filter element in it.

The Provent also has a built-in safety to prevent excessive crankcase pressure from damaging seals on the CRD and turbo - it's a pressure relief valve, set to vent to atmosphere if the pressure differential goes above .78 PSI. Whatever you build, make sure it has some kind of pressure relief valve included - the cost of replacing front and rear main oil seals on the CRD will make the $140 cost of the Provent look like a bargain. One additional factor to consider is whether the input/output lines will fit in the limited space inside the CRD engine bay. I believe OldNavy or maybe someone else looked into a RayCor CCV a while back, but it would not fit due to the placement of the I/O connections.

On a related note, I saw some specs on the new Dodge Cummins 6.7Liter diesel engine. They are careful to point out that a "coalescing ccv filter " is standard on the truck. DC is aware of the mess they made on the CRD by leaving one off at the factory. Also of note is the oil change interval on the 6.7Liter Cummins, now equipped with cooled EGR, just like our CRD's - the interval is now down to 7500 miles.

I had a line on a check valve that released just a little before the provents valve would, but they never sent me the sample like they said they would, and like you mentioned, I am not too sure if I could get the lines routed because the input and output are exactly opposite each other, unlike the provent where they are right next to each other. I had planned on attaching it inline on the EHM with new hoses to test it out, but I am afraid of too much backpressure, so so far it is a no go. If it did work out I was going to make a custom housing for it that would fit more easily in the CRD's engine bay. I know..I could save a lot of hassle and just buy a provent...But I like to tinker :lol:

EDIT: OH, LOOKY THERE, A CCV FILTER FROM THE FACTORY! GUESS I NEED TO GO TEST DRIVE A NEW CUMMINS :lol:

ELWINIL, ANYONE, CAN YOU GET A PART NUMBER FOR THAT CCV FILTER ON THE NEW DODGE?

RFCRD · **Posted:** Mon Oct 02, 2006 11:37 am

Jeger wrote:

ELWINIL, ANYONE, CAN YOU GET A PART NUMBER FOR THAT CCV FILTER ON THE NEW DODGE?

There aren't many choices on the market for CCV filters, most likely a Provent or the Racor.

Ranger1 · **Joined:** Mon Oct 17, 2005 7:40 pm **Posts:** 1137

Keep in mind that our CRD's come with a CCV - it just isn't very effective, nor is it described in the FSM as a coalescing ccv, just an oil-air separator. That's why I thought it significant that Dodge lists their new 6.7L cummins CCV as a coalescing type. It will be interesting to see what type of CCV the new Dodge uses. It will be difficult for Jeep to complain if CRD owners start showing up with a Dodge CCV bolted into their engine bay.

RFCRD · **Posted:** Mon Oct 02, 2006 11:55 am

Ranger1 wrote:

I believe OldNavy or maybe someone else looked into a RayCor CCV a while back, but it would not fit due to the placement of the I/O connections.

IIRC on the Racor, you mount the head and the filter canister unscrews from the bottom (like an oil/fuel filter). Great design for a bus but awkward for the CRD. The Racor was also @ twice the price of the Provent. I felt the Provent was a better choice for this application.

Ranger1 · **Joined:** Mon Oct 17, 2005 7:40 pm **Posts:** 1137

I too felt the Provent was the best available solution for the CRD since I had no available time left to build something on my own. After spending enormous amounts of time looking in industrial supply stores for air compressor oil air filters of every kind and description, I finally saw an online article posted by a TDI owner who documented his Provent installation. While I didn't want to spend $150 on a CCV filter at 2500 miles, I wanted that black crap in my intercooler even less. Turned out to be the best ~ $150 I ever spent on the CRD.

retmil46 · **Posted:** Mon Oct 02, 2006 12:45 pm

If you're going to try a home brew setup, such as the red beast pictured in the one post, you DO NOT want to make it out of PVC. Tried using some PVC fittings on my original Provent install - the oil and heat basically disintegrated them.

Jeger · **Posted:** Mon Oct 02, 2006 1:28 pm

Ranger1 wrote:

Keep in mind that our CRD's come with a CCV - it just isn't very effective, nor is it described in the FSM as a coalescing ccv, just an oil-air separator. That's why I thought it significant that Dodge lists their new 6.7L cummins CCV as a coalescing type. It will be interesting to see what type of CCV the new Dodge uses. It will be difficult for Jeep to complain if CRD owners start showing up with a Dodge CCV bolted into their engine bay.

Thats exactly what I was thinking. Its good to see them address the problem, even if its not for the CRD. I really want to see what they have used, wouldnt it be a kicker if they used the provent?

retmil46 · **Posted:** Mon Oct 02, 2006 11:50 pm

Jeger wrote:

Ranger1 wrote:

Keep in mind that our CRD's come with a CCV - it just isn't very effective, nor is it described in the FSM as a coalescing ccv, just an oil-air separator. That's why I thought it significant that Dodge lists their new 6.7L cummins CCV as a coalescing type. It will be interesting to see what type of CCV the new Dodge uses. It will be difficult for Jeep to complain if CRD owners start showing up with a Dodge CCV bolted into their engine bay.

Thats exactly what I was thinking. Its good to see them address the problem, even if its not for the CRD. I really want to see what they have used, wouldnt it be a kicker if they used the provent?

Dude, you may have just called it! :shock:

Cowpie1 · **Posted:** Sun Oct 08, 2006 4:25 am

Boy, sometimes I am glad I live in rural Iowa where no one (including dealer) seems concerned that I just do the elephant hose mod on my CRD for a wopping $5.

Oh, and before any of you tree huggers out there think that this is a terrible thing to do, all 25 of our '06 semi's with 14 liter Cummins engines vent the the crankcase gases right out into the air as equiped from the factory and meeting '06 emissions. I don't think the 2.8L in my CRD is going to make a dent in the environment. Even if ALL the CRD's were open vented, it would hold a candle to the 25 Semi's we have that go thru over 25K gallons of diesel a year EACH.

DC is just pulling our chain in having this setup. Else, the EPA would mandate it for the big diesels as well. Check out ANY semi engine up thru now and they all vent the cc to the outside.

Oh, almost forgot. Not one of our semi's has had to have an EGR replacement even though they each have about 160K miles on them since we got them a year ago. Of course, the engines alone cost as much as a CRD Limited! I guess you get what you pay for.

Possible ProVent Alternative

Who is online