M62TU intake oil!@!

[BreakMeWallet]

I currently have my intake manifold off my 2001 740il doing the valley pan job aswell as trying to fix my oil leak in my intake.... what are the chances that the actual CCV in the crankcase is not working? car has 175kms. i know the rear manifold valve has been replaced before but again has a tear in it. was also going to change out the aluminum tube underneath the manifold that going into the crankcase as it also has o rings and a rubber hose section.


Anyone that has M62TU experiance with this, input would be greatly appreciated.:buttrock

[psjr]

Chances are only your rear PCV is bad, but if you're doing the valley pan I say you might as well change the front one too.

[BreakMeWallet]

Chances are only your rear PCV is bad, but if you're doing the valley pan I say you might as well change the front one too.


Thats what i had originaly planned but its a whole lot easier said than done to add that ontop.

[Timm]

You can't get at the Oil Separator Valve (OSV) without removing the upper and lower timing-chain covers - a huge job. As you have found that the PCV is torn I would just replace that and the front and rear gaskets.

[Jahrule]

I just did this OSV swap on my M62TU along w/ timing guides and tensioners and it is NOT an EZ job! Did I mention that it's not an EZ job? With that said I had similar symptoms for months, ie repeated tears in rear ccv, oil in intake and plugs, and lemme throw in the infamous whistling sound from front of engine that I thought was VCG's leaking which cost $450 to replace at an Indy. Won't do that again. After searching the forum I got the idea that replacing OSV located behind lower timing cover would be the answer to many months of frustration. It was the problem and I'm now a happy camper. Learned an expensive lesson along the way, stop fixing symptoms and deal with the cause of the problem.

[Haadkoe]

When my osv/pcv diaphragm goes, I think I'm installing a catch can with a return line to the pan.

A) No more tearing diaphragms.
B) No more oil vapor entering the intake tract to gum things up
C) Less oil burned off, instead it returns to the pan to continue lubricating stuff, so less wasted oil and less chance of fouling plugs.

Not sure of how exactly it installs on the e38, but shouldn't be too hard.

I recall most of the forced induction guys back in the day running catch cans. Apparently that oil vapor getting sent through the intake manifold was bad news and led to pre detonation. Not really an issue for most of us I guess, but not having an oil soaked intake manifold ain't a bad thing IMHO.

[M I C H A E L]

When my osv/pcv diaphragm goes, I think I'm installing a catch can with a return line to the pan.

A) No more tearing diaphragms.
B) No more oil vapor entering the intake tract to gum things up
C) Less oil burned off, instead it returns to the pan to continue lubricating stuff, so less wasted oil and less chance of fouling plugs.

Not sure of how exactly it installs on the e38, but shouldn't be too hard.

I recall most of the forced induction guys back in the day running catch cans. Apparently that oil vapor getting sent through the intake manifold was bad news and led to pre detonation. Not really an issue for most of us I guess, but not having an oil soaked intake manifold ain't a bad thing IMHO.

If you do decide to pull the trigger would you be kind enough to do a write up on this? Seems like it's the best solution.

[Haadkoe]

Absolutely, if my Osv diaphragm fails I'll do a write up.

In the meantime, here's a couple non e38 specific threads I found after a quick search. YMMV, as I havent read through them completely yet:
http://forums.bimmerforums.com/forum/showthread.php?1610177-540i-osv-oil-catch-can-conversion
http://forums.bimmerforums.com/forum/showthread.php?2004932-DIY-oil-catch-can
http://www.technicalgarage.com/articles/e36/catchcan/

[BreakMeWallet]

When my osv/pcv diaphragm goes, I think I'm installing a catch can with a return line to the pan.

A) No more tearing diaphragms.
B) No more oil vapor entering the intake tract to gum things up
C) Less oil burned off, instead it returns to the pan to continue lubricating stuff, so less wasted oil and less chance of fouling plugs.

Not sure of how exactly it installs on the e38, but shouldn't be too hard.

I recall most of the forced induction guys back in the day running catch cans. Apparently that oil vapor getting sent through the intake manifold was bad news and led to pre detonation. Not really an issue for most of us I guess, but not having an oil soaked intake manifold ain't a bad thing IMHO.


Honestly ive been trying to research a solid explanation on how to do a bypass such as thing but so far nothing set in stone.... i would much rather try to avoid pulling of the crankcase covers and do the actual ocv....... I got my m62 ready togo for any alternative intakes already off! and unplugged.

[BavarianE39]

Absolutely, if my Osv diaphragm fails I'll do a write up.

In the meantime, here's a couple non e38 specific threads I found after a quick search. YMMV, as I havent read through them completely yet:
http://forums.bimmerforums.com/forum/showthread.php?1610177-540i-osv-oil-catch-can-conversion
http://forums.bimmerforums.com/forum/showthread.php?2004932-DIY-oil-catch-can
http://www.technicalgarage.com/articles/e36/catchcan/

I did the one mentioned in the first link, you can see my post on the last page, has been working great so far, had it in for a few months. No more smokey starts, and no more oil in the intake, great solution to the broken OSV.

[BreakMeWallet]

Awesome, much appreciated... i will be tackling this bypass in the near future... ill be sure to keep an update of the progress!
- cheers.

[Zedbimmer]

going to do this asap.

[YTNOM]

Had this issue a few weeks ago. Replaced rear plate but didnt do jack. Turned out it was the osv. It was spitting out too much oil. I capped off the osv and tapped into the breather fitting on the drivers valve cover. Installed an external oil/air separator. Car runs so well now. No smoke at all. Pulled my intake a week later and it was clean as a whistle. Doing all of this also completely got rid of my startup rattle! I guess all the oil in my intake caused a big ass knock during start ups

[Awestfield]

Had this issue a few weeks ago. Replaced rear plate but didnt do jack. Turned out it was the osv. It was spitting out too much oil. I capped off the osv and tapped into the breather fitting on the drivers valve cover. Installed an external oil/air separator. Car runs so well now. No smoke at all. Pulled my intake a week later and it was clean as a whistle. Doing all of this also completely got rid of my startup rattle! I guess all the oil in my intake caused a big ass knock during start ups

care to elaborate on your set up? pics?

[YTNOM]

care to elaborate on your set up? pics?


i dont have pics right now but my setup is similar to the catch can setup. Mine works better for those with OSVs that are too far gone like mine. The best most reliable permanent solution IMHO. And it's a closed loop system so no vacuum leaks or lost oil vapor. I'm contemplating on doing a full diy but i dont have the time at the moment

[Awestfield]

i dont have pics right now but my setup is similar to the catch can setup. Mine works better for those with OSVs that are too far gone like mine. The best most reliable permanent solution IMHO. And it's a closed loop system so no vacuum leaks or lost oil vapor. I'm contemplating on doing a full diy but i dont have the time at the moment

where are you draining your oil back to?

[YTNOM]

where are you draining your oil back to?

the overflow line at the oil filter housing

- - - Updated - - -

I used to have the catch can setup by following a diy thread somewhere around here. it still released too much oil into my intake because my osv (the real one inside lower timing cover) was completely useless and spat out a ratio of 50/50 air and oil. So i did my way lol

[Haadkoe]

Care to suggest an appropriate oil/air separator for this application? I'm intrigued.

[YTNOM]

I just grabbed one for a commercial size air compressor LOL 23$ at lowes/home depot. Then filled it up with scouring pad for added condensation

[Haadkoe]

So you plugged the osv and are connecting to the valve cover instead, (which I like, totally eliminates intake contamination) but couldn't the catch can be used in the same configuration if you already had it sitting there?

Oil/air separator is a cheap and elegant solution, which I love and would likely prefer to an overpriced catch can, just curious since I've never done one of these myself. :)

[Zedbimmer]

this one

http://images.lowes.com/product/converted/879686/879686001669lg.jpg

[YTNOM]

I had a cusco catch can. It wasnt catching as much oil as the oil/air separator. I added more condesation medium by stuffing 30ft of galvanized wire in it. It works well but i stuck with the oil separator because it had a window where i can see the amount/quality of oil getting filtered

- - - Updated - - -


this one

http://images.lowes.com/product/converted/879686/879686001669lg.jpg
Yup! Exactly that one!

- - - Updated - - -

I spent a little under 100$ for this mod. 35$ for new rear ccv plate. 23$ for oil separator. And 30$ for hoses, fittings, and clamps. At first i did buy my cusco catch can for 100$ and ended up not using it so that sucks lol

- - - Updated - - -

Im not returning oil to the valve cover. I plugged the OSV which is the cyclone separator in the timing cover. I am getting my crankcase pressure from the port i tapped into the valve cover. After the valve cover, it goes into the oil separator then into the rear plate CCV (everybody mistakes this for the OSV). the separated oil drains into the overflow line at the oil filter housing.

[BavarianE39]

That's the exact one that I used, works great! Filled mine with stainless steel sponge.
http://i856.photobucket.com/albums/ab121/bavarianE39/bmw/20131110_205321_zpsfb605205.jpg

[YTNOM]

That's the exact one that I used, works great! Filled mine with stainless steel sponge.
http://i856.photobucket.com/albums/ab121/bavarianE39/bmw/20131110_205321_zpsfb605205.jpg
Wow! That looks exactly like my setup!! Except i have an e38 and my valve covers are black haha! Oh and my engine bay is pretty grimey. Yours looks like you can eat off of it

[BavarianE39]

Haha thanks! Yes this set up works great!

[jmorrell]

Can you do a right up this issue please

[zEiDiZm]

That's the exact one that I used, works great! Filled mine with stainless steel sponge.
http://i856.photobucket.com/albums/ab121/bavarianE39/bmw/20131110_205321_zpsfb605205.jpg
I have an E38 with failed cyclone OSV. Looking to do this job, can you weigh in with write up or instructions?
Thanks