Planning to Install Oil Catch Tank in E46

[redled]

The crankcase vent valve of my E46 needs to replace because there is lot of oil in the intake manifold . Instead of replacing the vent valve, I am planning to install oil catch tank to avoid the coming of oil from the engine's breather going to intake manifold. More economical and may last forever.

[shogun]

I did that on my E32 750 for a test.
prototype PVC oil catcher for M70 (http://www.bimmerboard.com/forums/posts/733678)

[shogun]

I just found some more pics from 750, oil catchers selfmade
ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/202/vcvglassjar.jpg/)
just a long tube
ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/835/vcvtestconenction.jpg/)

or this http://imageshack.us/photo/my-images/90/m70pcvfoto2yx.jpg/

with float http://imageshack.us/photo/my-images/90/m70pcv27pv.jpg/

[redled]

I just found some more pics from 750, oil catchers selfmade
ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/202/vcvglassjar.jpg/)
just a long tube
ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/835/vcvtestconenction.jpg/)

or this ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/90/m70pcvfoto2yx.jpg/)

with float ImageShack® - Online Photo and Video Hosting (http://imageshack.us/photo/my-images/90/m70pcv27pv.jpg/)



Is the long tube can collect also, without a can?

[shogun]

yes, because it is like a big circle, the air will move to the other side but the oil will not move over to the other side.
But best is you have a can with inlet and outlet.
Here is a good example from Mustang S197 Mustang PCV Oil Separator Kit [DM-S197OS] - $55.95 : DAVAD Motorsports, Where Quality Meets Performance (http://shop.davadmotorsports.com/index.php?main_page=product_info&products_id=4)

http://www.ebay.com/itm/Oil-Separator-catch-can-for-all-PCV-systems-and-HHO-/121122320391