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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-20-2013, 05:48 AM
moots's Avatar
moots moots is offline
wat's dat noise
Location: Malaysia
 
Join Date: Apr 2005
Posts: 604
Mein Auto: '04 525i
2 stage ccv (Oil catch can in series)

howdy.....been having high oil consumption like 1 quart per 1000 miles.i also have excessive blow by gases(confirmed by comparing with a friends car by disconnecting the ccv pipe at the vlv cover) and plumes of smoke at every start ups.have checked and the ccv/oil drain hose/dipstick is not blocked.my guess is the rings are going....so .....aided by poolman's home brewed oil catch can....i installed mine.

the idea is to have a better separation of the oil ie. two stage oil separation system....

goes like this = valve cover -> oil catch can -> ccv.essentially i hooked up a catch can between the valve cover and the ccv.
there are now 2 oil drains....1 from ccv and the other from the oil catch can.i hooked up a 'T' fitting for the catch can to drain thru the dipstick.

i installed the catch can where the heater valves were.i did a heater delete ie bypassed the heater hence the heater valves are redundant.where i live i dont need heating!

have just had this installed today so i will report in a week or so if this works....
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Last edited by moots; 01-20-2013 at 06:01 AM.
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  #2  
Old 01-20-2013, 08:12 AM
poolman poolman is online now
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Location: martinsville va
 
Join Date: Nov 2005
Posts: 4,002
Mein Auto: 525i station wagon
I tried the oil drain in my catch can--It did not work well--when I cranked the car it sucked oil into the catch can , filled it and started to pull oil into the engine--I advise you to remove the drain tube and plug the vac point on the dipstick --seal it off--you won't have that much oil to accumalate in the can --in 6 months of driving there maybe be half a cup--Also I didn't see anything in your post about a pvc fitting--you will need to install one of those also--Just bringing this to your attention--you don't want to take a chance of hydrolocking your engine--be carefull--the vacuum that your introducing will work on it's own--the drain back is not needed

Last edited by poolman; 01-20-2013 at 08:13 AM.
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Old 01-27-2013, 05:08 PM
moots's Avatar
moots moots is offline
wat's dat noise
Location: Malaysia
 
Join Date: Apr 2005
Posts: 604
Mein Auto: '04 525i
hi poolman.....thanks for the heads up.

well....this did not cure my oil consumption but did reduce the exhaust smoking at startup up somewhat....
well.....me thinking of feeding a stainless steel wool inside the catch can to further trap/separate the oil up another notch........

hope this won't clog up the catch can drain tho.......
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Old 01-28-2013, 11:14 AM
poolman poolman is online now
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Location: martinsville va
 
Join Date: Nov 2005
Posts: 4,002
Mein Auto: 525i station wagon
In your case I suggest thaqt you completly elimanate the CCV system and convert over to a catch can system with full vacuum going into the cranckcase added with a PVC valve--this I think will help stop your oil problems--don't worry about the oil drain back part , elimanate that all together--there won't be enough oil to be concerned with this way--
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