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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 09-19-2011, 01:51 PM   #21
Dan330Ci~
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Originally Posted by RockerGuy View Post
Hey, can you tell us how much oil u are losing per month?
I am thinking of doing this, just thinking about the amount of oil I will be losing
I've been running this for about 2 months now and have found approximately 50ml of water in the can with a bit of oil. Looks like it will mostly be moisture that is collected in the can.
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Old 09-19-2011, 02:09 PM   #22
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This is an interesting mod. I am definitely going to research this. I live in so cal, so I don't have the cold weather that seems to play a part in ccv failure, but, it's definitely cool that there may be viable options for this. Thanks for posting the info.
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Old 09-19-2011, 02:26 PM   #23
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Originally Posted by Dan330Ci~ View Post
I've been running this for about 2 months now and have found approximately 50ml of water in the can with a bit of oil. Looks like it will mostly be moisture that is collected in the can.
I got quite a bit of dirty brown water in the first month or so after doing this. Since then, i've gotten almost nothing. Just some light brown sludge.

I added an inline filter to clean up the vapor before it goes back into the intake.
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Old 09-27-2011, 07:18 AM   #24
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Originally Posted by newe46fan View Post
The entire ring package is low tension.

Put some negative pressure in the crankcase and drive it around, you will notice a difference.
I did try this but did not notice any difference. Considering my broken CCV was allowing much more vacuum than a correctly functioning one (to the point of the engine nearly stalling when I removed the oil filler cap) I also cannot see any benefit to running increased vacuum. The only thing I can suggest is a compression check - if your piston rings are worn this would explain the difference between no and some vacuum for you. I would do a dyno test with and without the CCV if I had a brand new CCV to hand but I will not buy one for this purpose.

Also to update I am draining off a small amount of brown water every 500 miles or so.
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Last edited by Dan330Ci~; 09-27-2011 at 07:20 AM.
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Old 10-19-2011, 11:47 AM   #25
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any update on this? Still running good, no issues? I'd like to do this on my e39.
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Old 10-19-2011, 12:18 PM   #26
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any update on this? Still running good, no issues? I'd like to do this on my e39.
Sure it works fine
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Old 10-20-2011, 08:54 AM   #27
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I've changed mine about a dozen times since it's gone in.

I've since removed the PCV valve and inline filter. The filter was getting too dirty too fast, and would have to be replace monthly.

I didn't like the fumes going in behind the MAF, essentially creating a vacuum leak. So I plugged that hole in the intake elbow, and ran the outlet line from my catch can down into the fender well. So now I'm just venting to the atmosphere.

I reset my adaptations, and the car immediately ran much better. Thought it was just my imagination, but it's been weeks, and the low/mid range is much better. I think that I was right about the vacuum leak. Also, having it vent lower to the ground keeps the fumes from entering the cabin when you are sitting at a stop light. And now I'm gathering a lot more in the can. Which shows how much I was sucking into the engine. Yikes.

I can't agree or disagree with the low tension ring comment. But it is running better than ever right now, so I'm going to stick with this.
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Old 10-20-2011, 12:25 PM   #28
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Sure it works fine
Did you also plug off the other end of where the vacuum hose part # 11727545323 goes to? Looks like it goes to the fuel rail according to realoem
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Old 10-20-2011, 01:04 PM   #29
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Did you also plug off the other end of where the vacuum hose part # 11727545323 goes to? Looks like it goes to the fuel rail according to realoem
I had a cap on my CCV for this line so I guess the other end is also capped off, not sure where it would go to.
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Old 10-23-2011, 10:21 AM   #30
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Redid the hose today, I think it is better this way.





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Old 10-24-2011, 06:42 AM   #31
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Looks good. I'll be rigging up my own this weekend. Will post pics when it's completed.
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Old 10-27-2011, 12:35 AM   #32
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OP,


Good writeup.
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Old 10-31-2011, 03:27 PM   #33
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completed my setup inspired by the OP with some slight differences...

instead of a catch can i used an oil separator from the m5.
I cut the rubber line that went to the dipstick from the ccv, extended it and connected it to the bottom of the m5 oil separator so that the oil returns to the oil pan like it does with the stock ccv system.

Drove to work and back and it seemed smoother. It was cold this morning and no stumble like i have been having previously. Fingers are crossed.

There was definitely a ton of crud inside the tubes going to the ccv before doing this so who knows what it is the ccv iself.






Last edited by markgbe; 10-31-2011 at 03:40 PM.
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Old 10-31-2011, 04:49 PM   #34
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That's pretty trick!
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Old 11-01-2011, 12:26 PM   #35
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completed my setup inspired by the OP with some slight differences...

instead of a catch can i used an oil separator from the m5.
I cut the rubber line that went to the dipstick from the ccv, extended it and connected it to the bottom of the m5 oil separator so that the oil returns to the oil pan like it does with the stock ccv system.

Drove to work and back and it seemed smoother. It was cold this morning and no stumble like i have been having previously. Fingers are crossed.

There was definitely a ton of crud inside the tubes going to the ccv before doing this so who knows what it is the ccv iself.





Nice work, that's what I would have done if I hadn't gone with the Moroso tank. The M5 seperator is so much smaller!

Out of curiosity how did you cap off the bungs on the inlet runners?
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Old 11-02-2011, 05:56 PM   #36
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do you have the part number for the m5 oil separator ?
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Old 11-03-2011, 03:46 AM   #37
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do you have the part number for the m5 oil separator ?
Here we go, I think it's no. 2

http://realoem.com/bmw/showparts.do?...53&hg=11&fg=15
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Old 11-03-2011, 12:07 PM   #38
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Thanks Dan
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Old 11-07-2011, 11:43 AM   #39
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sorry for not replying. The part # i used was 11151406788. You can use 11151406789 but the oil return hole on it will be pointing away from the dipstick tube if mounted the way i did it, so best to use 11151406788.

Last edited by markgbe; 11-07-2011 at 11:49 AM.
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Old 11-07-2011, 11:44 AM   #40
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Nice work, that's what I would have done if I hadn't gone with the Moroso tank. The M5 seperator is so much smaller!

Out of curiosity how did you cap off the bungs on the inlet runners?
Thanks.

I capped the bungs off the same way you did, with some 3/4" vacuum caps i found at my local auto parts store, with band clamps.
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