E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

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!

Reply
 
Thread Tools Search this Thread Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
Old 08-01-2011, 02:27 PM   #1
Dan330Ci~
Registered User
 
Join Date: May 2011
Location: UK
Posts: 216
My Ride: 330Ci Clubsport
DIY: CCV Delete and Moroso Oil Breather Tank Install

This is a DIY for the removal fo the CCV system in entirety and the installation of a Moroso oil breather tank in it's place. I wanted to remove the stock CCV system as it's another thing on the car that I look at and think 'junk'. It was also worn out and letting far too much vac be on the crankcase. I also wanted to no longer recirculate oil vapours into the engine.

I used the two studs on the suspension tower that is on the exhaust side of the engine to mount the breather tank. I think these are the same studs that are used for the secondary air thingy but I'm not sure, my euro car doesn't have this.

Finished article:



Parts required:

Moroso 85465 breather tank (has a 12AN fitting)
Rubber caps (7x) (see link here)
Hose clamp 46mm thin type (1x) (see link here for the ones I used)
Hose clamps 22mm (7x) (see link above for the ones I used)
M6 nuts (2x)
M6 washers (2x)
3/4" ID oil resistant hose (~0.5 m) (I used Aeroquip AQP)
12AN straight hose fitting
3/4" elbow









Step 1:

Step 1 is removal of the stock CCV system. I haven't documented this process but it is relatively straightforward. We will be roughly copying this diagram (shamelessly stolen) but only keeping the connector which is on the valve cover. The dipstick return will be capped off.



Here are some pictures of the 2 CCV torx bolt locations just to help:





You can see where i cut the stock CCV with a hacksaw for easy removal:



Step 2:

Step 2 is capping off the dipstick return and the 6 inlet runner bungs.

This is the cap and hose clamp on the dipstick, which I removed from the sump (big mistake). I left a small piece of the original hose on the dipstick to make the diameter larger to suit the cap. If you remove the dipstick from the sump (by pulling upwards after removing the bolt from the bracket) it will be difficult to re-fit it with everything else in place. I would seriously recommend capping it off in-situ.



These are the caps and hose clamps on the inlet runner bungs. You could cut the caps down some so they sit lower but I couldn't be bothered.





Step 3:

Step 3 is the installation of the oil breather tank. The first job is to mount the bracket on the studs using the 2 washers and nuts. Be careful not to cross-thread the nuts as the threads on the studs aren't amazing. You may need to bend the bracket slightly to go over the 2 studs.

You could alternatively mount using the lower stud you can see and a plastic expanding-type clip where you can see a plastic fixing. This would work and you would have clearance to the frame rail underneath however you would have no chance of draining the tank in-situ. Also you would need a 45 or 90 degree 12AN fitting perhaps.



Install the tank within the bracket:





Now assemble the hose and attach to the tank and valve cover. Use dish washing liquid to lubricate the push-fit fittings! You can alternatively run it the other side of the oil filler and attach to the underside of the strut brace if you have one. The way you see below allows you to fit both original covers though.







You can see how the filter has a deep base, this gives around 5 mm of clearance between the top and the hood. I cut it down to half the size to increase the clearance to 10 mm. This is why you need a thin type hose clamp, not the one supplied with the tank



Job done
__________________
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge

Last edited by Dan330Ci~; 08-01-2011 at 04:04 PM.
Dan330Ci~ is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 08-01-2011, 02:41 PM   #2
Custom3
Registered User
 
Join Date: Sep 2005
Location: Dirty Jersey
Posts: 5,437
My Ride: HellRot 330CI
what are the benefits from doing this? Cools the oil better?
Custom3 is offline   Reply With Quote
Old 08-01-2011, 03:43 PM   #3
darksideracer69
Registered User
 
Join Date: Jan 2008
Location: TX
Posts: 2,886
My Ride: 01 325ci
Thanks man, i like this setup.
__________________
Quote:
Originally Posted by dmax View Post
If she ever yells 'oh god, oh god' just say, 'no, just Doug.'


IMAG02051
darksideracer69 is offline   Reply With Quote
Old 08-01-2011, 04:59 PM   #4
TX78666
Registered User
 
Join Date: Jul 2011
Location: 78666
Posts: 776
My Ride: 330i ZHP, N55 135i
Quote:
Originally Posted by Custom3 View Post
what are the benefits from doing this? Cools the oil better?
I could be wrong, but I assume that the main benefit is eliminating that point of failure (CCV) and the hassles that go with it.
__________________
Because... Grocery Getter.


TX78666 is offline   Reply With Quote
Old 08-01-2011, 06:02 PM   #5
Bandit
Registered User
 
Join Date: Jul 2004
Location: Manhattan, KS
Posts: 11
My Ride: 04 330Ci
I really like this idea, have you had any trouble? CEL or otherwise?
Bandit is offline   Reply With Quote
Old 08-01-2011, 11:25 PM   #6
RockerGuy
Registered User
 
Join Date: Aug 2005
Location: Timbuktu
Posts: 402
My Ride: Not a BMW
Damn, thats awesome
RockerGuy is offline   Reply With Quote
Old 08-02-2011, 06:10 AM   #7
Dan330Ci~
Registered User
 
Join Date: May 2011
Location: UK
Posts: 216
My Ride: 330Ci Clubsport
Quote:
Originally Posted by TX78666 View Post
I could be wrong, but I assume that the main benefit is eliminating that point of failure (CCV) and the hassles that go with it.
That's one of the main points, it's just another thing on the car that is junk by 60k miles and is a pain to change. Also the idea that if the diaphragm fails it can suck up the oil from the sump is a real joke.

The other points are that I don't want to burn the oil vapours and don't want to be returning crappy oil/water mixture or fuel from blow-by back to the sump, diluting the oil. It may 'use' slightly more oil with no return line but I'm not worried about this.

Quote:
Originally Posted by Bandit View Post
I really like this idea, have you had any trouble? CEL or otherwise?
No CEL, it's purely a mechanical system.
__________________
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge
Dan330Ci~ is offline   Reply With Quote
Old 08-02-2011, 09:35 AM   #8
Custom3
Registered User
 
Join Date: Sep 2005
Location: Dirty Jersey
Posts: 5,437
My Ride: HellRot 330CI
oh okay....i change all my hoses and CCV last year...it was a pain in the ass to do...This would have been a million times easier to do.
Custom3 is offline   Reply With Quote
Old 08-07-2011, 07:42 PM   #9
new//M3fan
Registered User
 
Join Date: Aug 2010
Location: Reston, VA
Posts: 2,663
My Ride: 77' 924 87' E30
Very well done!

However, A vacuum in the crankcase is beneficial in our case since our engines employ the use of low-tension piston rings.

That small amount of vacuum helps the piston rings seal better. among other things.

A catch can setup that creates vacuum in the crankcase would be the ideal setup.

The vacuum inside the crankcase is only about .5 inHg. I have a reason to believe that increasing the vacuum between 6-8 inHg will net some HP gains.
__________________
<-- Mango *F-BOMBS IN SIGS*
Bilstein HD's | E30 M3 FCAB's | H&R OE Sports | F+R strut bars | Self tuned 027 93 octane chip | KoseiK1's on R888's | + crazy OCD maintenance

Last edited by new//M3fan; 08-07-2011 at 07:57 PM.
new//M3fan is offline   Reply With Quote
Old 08-08-2011, 06:49 AM   #10
mujjuman
Registered User
 
Join Date: Jun 2008
Location: New York
Posts: 3,339
My Ride: not an E46
nice work
__________________
mujjuman

2003 325xi 5MT
Jet Black, ZSP, ZPP, ZCW, OEM Xenon ^^RIP
sig by Solidjake
mujjuman is offline   Reply With Quote
Old 08-08-2011, 10:04 AM   #11
Dan330Ci~
Registered User
 
Join Date: May 2011
Location: UK
Posts: 216
My Ride: 330Ci Clubsport
Quote:
Originally Posted by newe46fan View Post
Very well done!

However, A vacuum in the crankcase is beneficial in our case since our engines employ the use of low-tension piston rings.

That small amount of vacuum helps the piston rings seal better. among other things.

A catch can setup that creates vacuum in the crankcase would be the ideal setup.

The vacuum inside the crankcase is only about .5 inHg. I have a reason to believe that increasing the vacuum between 6-8 inHg will net some HP gains.
Thanks, are you talking about the oil control rings specifically or also the compression rings?
__________________
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge
Dan330Ci~ is offline   Reply With Quote
Old 08-08-2011, 12:02 PM   #12
DangerousMind
Registered User
 
Join Date: Nov 2005
Location: SF Bay area
Posts: 992
My Ride: Sierra 1500 SLT
Just wait a few months and you will have oil residue all over your engine bay and an oil caked catch can filter. Also, how does your air conditioning smell?
__________________
DangerousMind is offline   Reply With Quote
Old 08-08-2011, 12:05 PM   #13
new//M3fan
Registered User
 
Join Date: Aug 2010
Location: Reston, VA
Posts: 2,663
My Ride: 77' 924 87' E30
Quote:
Originally Posted by Dan330Ci~ View Post
Thanks, are you talking about the oil control rings specifically or also the compression rings?
The entire ring package is low tension.

Put some negative pressure in the crankcase and drive it around, you will notice a difference.
__________________
<-- Mango *F-BOMBS IN SIGS*
Bilstein HD's | E30 M3 FCAB's | H&R OE Sports | F+R strut bars | Self tuned 027 93 octane chip | KoseiK1's on R888's | + crazy OCD maintenance
new//M3fan is offline   Reply With Quote
Old 08-08-2011, 12:09 PM   #14
new//M3fan
Registered User
 
Join Date: Aug 2010
Location: Reston, VA
Posts: 2,663
My Ride: 77' 924 87' E30
Quote:
Originally Posted by DangerousMind View Post
Just wait a few months and you will have oil residue all over your engine bay and an oil caked catch can filter. Also, how does your air conditioning smell?
That's not a catch can. That a breather tank.
__________________
<-- Mango *F-BOMBS IN SIGS*
Bilstein HD's | E30 M3 FCAB's | H&R OE Sports | F+R strut bars | Self tuned 027 93 octane chip | KoseiK1's on R888's | + crazy OCD maintenance
new//M3fan is offline   Reply With Quote
Old 08-08-2011, 12:28 PM   #15
DangerousMind
Registered User
 
Join Date: Nov 2005
Location: SF Bay area
Posts: 992
My Ride: Sierra 1500 SLT
Quote:
Originally Posted by newe46fan View Post
That's not a catch can. That a breather tank.
It's a goddamn atmospheric/vented catch can chief. Splitting hairs.
__________________
DangerousMind is offline   Reply With Quote
Old 08-08-2011, 12:48 PM   #16
DANe46
Registered User
 
Join Date: Dec 2006
Location: Los Angeles, California
Posts: 118
My Ride: 2004 BMW 325i E46
OP where did you get the gold heat shield that's covering your intake box?
__________________
DANe46 is offline   Reply With Quote
Old 08-08-2011, 12:49 PM   #17
new//M3fan
Registered User
 
Join Date: Aug 2010
Location: Reston, VA
Posts: 2,663
My Ride: 77' 924 87' E30
Quote:
Originally Posted by DangerousMind View Post
It's a goddamn atmospheric/vented catch can chief. Splitting hairs.
Whatever tinkers your wenie, pal.
__________________
<-- Mango *F-BOMBS IN SIGS*
Bilstein HD's | E30 M3 FCAB's | H&R OE Sports | F+R strut bars | Self tuned 027 93 octane chip | KoseiK1's on R888's | + crazy OCD maintenance
new//M3fan is offline   Reply With Quote
Old 08-08-2011, 02:40 PM   #18
Dan330Ci~
Registered User
 
Join Date: May 2011
Location: UK
Posts: 216
My Ride: 330Ci Clubsport
Quote:
Originally Posted by DANe46 View Post
OP where did you get the gold heat shield that's covering your intake box?
See my thread here: http://forum.e46fanatics.com/showthr...573&highlight=
__________________
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge
Dan330Ci~ is offline   Reply With Quote
Old 08-08-2011, 02:44 PM   #19
Dan330Ci~
Registered User
 
Join Date: May 2011
Location: UK
Posts: 216
My Ride: 330Ci Clubsport
Quote:
Originally Posted by DangerousMind View Post
Just wait a few months and you will have oil residue all over your engine bay and an oil caked catch can filter. Also, how does your air conditioning smell?
I have driven it around for a few months with no catch can, just the original hose that goes from the valve cover to the CCV just hanging in the engine bay, I didn't get any residue.

Air conditioning smells fine the microfilter housing seals against the underside of the hood.

Of course YMMV.
__________________
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge

Last edited by Dan330Ci~; 08-08-2011 at 02:48 PM.
Dan330Ci~ is offline   Reply With Quote
Old 08-09-2011, 02:40 PM   #20
RockerGuy
Registered User
 
Join Date: Aug 2005
Location: Timbuktu
Posts: 402
My Ride: Not a BMW
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
RockerGuy is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 10:56 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use