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willywi · 05-09-2020, 04:26 PM

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Marty in NY · 05-09-2020, 04:53 PM

Quote:

Originally Posted by willywi

Just finished installing oil catch can for my N20 X3 if you plan to do this you will have to be creative on the mounting bracket.[IMG][/IMG]

What is the purpose of this? Does it solve an issue? Is it for the N20 only?

383vett · 05-09-2020, 06:16 PM

Quote:

Originally Posted by willywi

Oil catch can reduce oil mist from PCV system, if you don't have a catch can these oil mist will be send back to intake and gets combust again. Since N20 is GDI engine there is no fuel cleaning back of intake valve this will lead to carbon build up.

All new cars a direct injection. Do any of them come with catch cans? Is your catch can vented?

pungo · 05-09-2020, 06:50 PM

Good job...

For those new to the "catch can" it will reduce the build up of carbon on the back of the valves and intake runners. I don't know by how much, but it can't hurt and retains the emission system. It's really just extracting the oil out of the crankcase vapors and collecting them in a can that you empty periodically.

Just google "BMW walnut blasting" to remove the built up carbon.

05-09-2020, 04:26 PM	#1
willywi Second Lieutenant 86 Rep 232 Posts Drives: BMW x3, BMW x5 Join Date: Jul 2018 Location: NY iTrader: (0)	- - Last edited by willywi; 05-12-2021 at 10:19 PM..
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05-09-2020, 06:50 PM	#4
pungo Colonel 880 Rep 2,547 Posts Drives: Z4MC-X3-35i-525i, Corrado G60 Join Date: Nov 2007 Location: MD iTrader: (5) Garage List 2011 BMW X3 x35i [0.00] 2001 BMW 525i [0.00] 2007 BMW Z4 M Coupe [8.76]	Good job... For those new to the "catch can" it will reduce the build up of carbon on the back of the valves and intake runners. I don't know by how much, but it can't hurt and retains the emission system. It's really just extracting the oil out of the crankcase vapors and collecting them in a can that you empty periodically. Just google "BMW walnut blasting" to remove the built up carbon.
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