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  #1  
Old July 16th, 2008, 07:50 PM
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Mann ProVent

I was wondering if anyone has experience using the Mann ProVent CCV oil separator/filter:

http://www.mann-hummel.com/group/upl...BLAXUCmOK5.pdf

I'm installing a new intercooler, and would like to minimize/eliminate oil contamination from the stock CCV system. I don't want to vent to atmosphere so the idea of a coalescing filter like the Mann ProVent seems good. Just wanted to see if anyone has firsthand experience before I take the plunge. Thanks.
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  #2  
Old July 16th, 2008, 11:09 PM
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I have put a couple of those on. It is a good option. You could make something yourself though Ryan.
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  #3  
Old July 16th, 2008, 11:54 PM
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Can this be used on the 300tdi as a bolt on replacement for the stock unit? W/o modifications?

Is it any better than the stock unit or should I just stick with it?
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  #4  
Old July 17th, 2008, 12:01 AM
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Its not a bolt on option. Allisport makes a bolt on option though.
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  #5  
Old July 17th, 2008, 05:20 AM
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Jim- Thanks for the feedback. As you know, my projects are progressing slowly enough already so, if a decent off-the-shelf solution exists, that's my first choice.

Todd - I'm probably going to use this inline with (and downstream of) the stock separator (I have a 2.8 but it uses the 300 Tdi separator). If the stock unit worked well, then there wouldn't be any need for doing this. I removed my intercooler plumbing with only 5K miles on it, and it already had a good coating of sludge on the tube exiting the turbo. The Mann ProVent is actually a coalescing filter (with supposedly an extremely high quality element) which theoretically should remove almost all of the oil that passes through it. So the hope is that the air vented back into the turbo inlet will be basically dry. This will help both the turbo and the intercooler. I've played around with traps before but never have any luck. So it's good to know that Jim has had good experience with this product. I'm going to give it a shot. It will be easy enough to see if it's working by pulling the same tube after another 5K miles.
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  #6  
Old July 17th, 2008, 10:23 AM
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We are talking about the "crankcase breather cyclone unit" right?
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  #7  
Old July 17th, 2008, 12:02 PM
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Quote:
Originally Posted by pendy
Allisport makes a bolt on option though.
And Darton Fabrication also:

http://www.dartonfabrications.co.uk/

I use Mann for all my filters change (air - oil - diesel) and I'm very happy with their products.
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  #8  
Old July 17th, 2008, 07:10 PM
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Quote:
Originally Posted by discotdi
We are talking about the "crankcase breather cyclone unit" right?
Yes, that's the one. It's mounted near the top of the engine on the passenger side of the valve cover.

Follow-up Post:

I checked out the Darton link, and it appears to be mainly a nicer made version of the stock breather. I tried to see what Allisport offers but their website seems to be down.

I think the key difference in the Mann ProVent (sorry to keep harping on this) is the coalescing filter. This type of filter is also used for compressed air systems when you can't afford to have oil in downstream processes.

I was searching the web about a week ago, and found an Aussie LR group that was starting to do an evaluation of the Mann ProVent. About 50 people are testing them now. So the stock system must not be working very well if that many people were interested in trying something different. I think they've all seen or had to clean plugged up intercoolers. Unfortunately there are no test results yet.
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  #9  
Old September 2nd, 2008, 08:18 PM
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Just got the ProVent installed (see pics). I made a simple bracket that uses the two bolts on the AC compressor mount. This location made it easy to plumb it in series with the existing cyclone (I also still have clear access to the IP for tuning). I found some molded hoses that made the transition from the 1" ProVent ports to the 5/8" existing hoses much cleaner. I added a 1/2" port to the dipstick tube to get a low point drain. Now the question is "does it work?". I'll take it apart in maybe 5K miles, and see how much oil is being fed back into the intake. I had an accumulation of oil at the turbo outlet before so that'll be one of the areas I check.
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  #10  
Old September 2nd, 2008, 08:37 PM
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Quote:
Originally Posted by RyanS
Just got the ProVent installed (see pics). I made a simple....
That is a clean engine and engine bay !

When i installed the Darton breather, i changed the plumbing and plugged the air intake connection. I get a few drips on the park spot, but my hoses and intercooler stay clean longer.
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  #11  
Old September 2nd, 2008, 10:59 PM
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Dig the shrink wrap clamp
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  #12  
Old September 2nd, 2008, 11:11 PM
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Quote:
Originally Posted by JFD
That is a clean engine and engine bay !

When i installed the Darton breather, i changed the plumbing and plugged the air intake connection. I get a few drips on the park spot, but my hoses and intercooler stay clean longer.
I thought about that, but the greenie in me wouldn't allow it. The ProVent seems to be big in the VW Tdi circles, and many there claim that the outlet side of the ProVent is completely dry. So we'll see...

Jim - Glad you noticed the heat shrink clamps. I started using those in places where I don't plan on removing the hose for a while, and in transitions where it's a lot cleaner than a couple of clamps. Since the pressure's low in the CCV system, I simplified it even more and just used one heat shrink clamp over the barbed coupler.
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  #13  
Old September 3rd, 2008, 08:08 AM
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Quote:
Originally Posted by RyanS
I thought about that, but the greenie in me wouldn't allow it. The ProVent seems to be big in the VW Tdi circles, and many there claim that the outlet side of the ProVent is completely dry. So we'll see...
Let us know how it will go. I trust Mann products pretty much, I think it will work.
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  #14  
Old September 9th, 2008, 03:48 AM
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Question Price

How much do they charge over there?
I just got a mail from the M+H dealer here...the "special" friendly price for me would be
262 Euros!!


Retail is 397!!

Seems a tad too much for a plastic canister and a filter...
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  #15  
Old September 9th, 2008, 04:11 AM
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Sounds outrageous.

Did you specify the ProVent 200? They make different sizes so I'm wondering if they priced a larger model.

Anyway, I got mine here for $139 USD + $20 USD for the drain line check valve:
http://www.republicsales.com/product...annprovent.php

BTW, according to one of the guys who was involved in the development of the filter, they use a very high quality coalescing filter element and that's where all of the cost is.
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  #16  
Old September 9th, 2008, 04:39 AM
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Thanks Ryan for the link!
I specified the exact part # as per Ben's hint
(Ben is a friend of mine who's involved in the MH test posted originally on the AULRO BB you referred to in your previous post, and BTW price of the filter in Oz is again very different! ).

I'll try and see if I can get one while in US during the next weeks maybe...


Follow-up Post:

I forgot to ask...what did you get for 139$?
Provent and separator element included?

I clicked "online order" to check it out but I only get 404 error...

Description
3931070550 Provent 200
3931050950 Oil Separator Element
2400843621 Check Valve
2307932101 O-seal
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  #17  
Old September 9th, 2008, 03:50 PM
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The ProVent comes with an element for $139. They list the element separately if you want to order a spare. I didn't order a spare since it's a readily available item, and I don't know when it will need to be replaced.

Yeah, I recall that their online ordering system wasn't working, and you need to call.
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  #18  
Old September 15th, 2008, 02:02 AM
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Roger that!

Will order mine before leaving.

Typing from Moab at the mo!
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  #19  
Old October 1st, 2008, 12:03 PM
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Talking

The dealer called me and I told him about the price of this thing in the US...
They changed their minds and price now is 120
the power of internet
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  #20  
Old October 1st, 2008, 07:21 PM
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Michele - Glad you got the Euros straightened out

Let me know how it works out when you get it installed. I've just started putting some miles on mine so I'll be keeping tabs on how dry the outlet is.
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