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  #271  
Old 07-30-2016, 02:44 PM
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and here is a photo of the hole i removed hoses from.. other side is also like this... so after 300 miles this is way less oil that it is needed for a 10 minute buildup for that cloud of smoke i had... so this ruled out i have a problem with vacuum. plus later i have found out i have a smoke coming on left side only... so ... bank no2 is my next step...


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  #272  
Old 07-30-2016, 02:54 PM
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Quote:
Originally Posted by bmwktm View Post
and here is a photo of the hole i removed hoses from.. other side is also like this... so after 300 miles this is way less oil that it is needed for a 10 minute buildup for that cloud of smoke i had... so this ruled out i have a problem with vacuum. plus later i have found out i have a smoke coming on left side only... so ... bank no2 is my next step...


BTWDS - if your two pipes are side by side you only have single exhaust with a flapper controlling the 2nd outlet and you need to pull your throttle body to see how much oil is pooled in your intake.
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  #273  
Old 07-30-2016, 03:09 PM
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i really think i have two totally separated pipes (one per bank). this is what i have under my car
FRONT: RealOEM.com - Online BMW Parts Catalog
BACK: RealOEM.com - Online BMW Parts Catalog
and when i was below the car, and here on the pictures i see no flapper. but i did see on some earlier bmw there was a flap you are talking about. where should flapper be located if i had one so i can go and check?

well i did remove my throttle body but it was hard to see whats on the bottom because of variable intake runners... but i did see it was not clear metal.. i did put some stick inside to see if it will get dirty. there was a layer of oil in there... so not a puddle but it was oily... could that be the reason for smoke even i have removed eventual source of oil supply to intake? or there is another way for oil to get in there? and i do not know exact construction of this intake and variable runners, is it possible that oil is pulled only into one head?
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  #274  
Old 07-30-2016, 03:30 PM
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I would assume with both pipes going to one muffler the right & left mix. Then expel out the two tailpipes, so you can't differentiate between the two banks.

Last edited by A B Able Truck; 07-30-2016 at 04:47 PM.
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  #275  
Old 07-30-2016, 09:18 PM
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i definitely have two independent OEM pipes. i just got back from the car. no flapper, no X pipe... just OEM stuff from realoem web site. and as i said i am getting smoke only from one side so what makes you think they are connected to each other? than i would have smoke on both pipes... no?

AAAND... i have just checked my plugs expecting to see some (or all) of them on my drivers bank to be black and others to be burnt so i could finally know what problem do i have BUT... all 8 plugs are absolutely the same, and totally burnt in the middle and black carbon layer on the outer ring... here are some pictures.
and now new questions... if i am getting smoke only on one side why are all of my plugs the same? i have my CCV hoses disconnected and still i have blue smoke after 10 min idle...
now i just want to drive for another couple of hundreds miles just to see if something is going to change with hoses disconnected but other than that i have no clue what to do next.
ok i could do the valve seals and all the gaskets but what if i have some other problem? i would like to know before i start opening the engine so i can do it all at once.
sooo... thanx for any new useful info.
https://s32.postimg.org/vuwhr4ndx/cyl1.jpg
https://s32.postimg.org/vxwj6h8jp/cyl3.jpg
https://s31.postimg.org/jz28ug4t7/cyl5.jpg
https://s32.postimg.org/4ixn1gglx/cyl6.jpg
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