E39 M5 Oil Seperator mod on a M60

[bigperm206]

Hi, has anyone done the OS mod on their M60 recently and used the E39 M5 OS as the catch can? I've read through several of the threads dedicated to the OS mod but wanted to see if anyone has any recent updates and/or experience doing this mod using the E39 M5 OS. Tia

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[nonturbodan]

The M60 already has an oil separator like the S62, behind the drivers side timing cover. Same part, the M5 just has two of them.

[bigperm206]

The M60 already has an oil separator like the S62, behind the drivers side timing cover. Same part, the M5 just has two of them.I understand that, however, as the title says, I'm looking to do the OS mod and looking for tips/real world experience from others who have done the mod before I tackle it myself.

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[bigperm206]

I understand that, however, as the title says, I'm looking to do the OS mod and looking for tips/real world experience from others who have done the mod before I tackle it myself.

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[93FIM5]

Can you explain this mod you’re looking to do?


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[bigperm206]

Can you explain this mod you’re looking to do?


Sent from my iPhone using TapatalkTo bypass the OS which is behind the timing cover and expensive to fix with a much less expensive, and easier to get to, OS alternative. I'm not sure I'm smart enough to explain all of it but I did find a pretty good explanation/diy using Google. I read through it but wanted to get some recent real world info.

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[summitp]

Why don't you share the information you found with Google?

[84318i]

I think op is thinking about making the Osv external like on m62tu for example .

[bigperm206]

I think op is thinking about making the Osv external like on m62tu for example .Bingo

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[nonturbodan]

The M62TU has the oil separator located in the same place as the M60/M62 with the exception of the M62TU in the X5. Those actually suck a little worse since those rubber hoses degrade and soften, causing leaks that the regular V8 is not susceptible to.

I haven't heard of anyone doing this on a V8. The oil separator is not a maintenance item. It has no moving parts and is not susceptible to failure. The crankcase pressure regulating valve on the back of the intake is the maintenance item. On the M52TU and M54 the OSV and CVV are built into a single component, that is a different animal.

If you're experiencing excessive oil consumption the first suspect would be the crank vent valve. If that is functioning normally I would recommend a higher viscosity oil.

[bigperm206]

The M62TU has the oil separator located in the same place as the M60/M62 with the exception of the M62TU in the X5. Those actually suck a little worse since those rubber hoses degrade and soften, causing leaks that the regular V8 is not susceptible to.

I haven't heard of anyone doing this on a V8. The oil separator is not a maintenance item. It has no moving parts and is not susceptible to failure. The crankcase pressure regulating valve on the back of the intake is the maintenance item. On the M52TU and M54 the OSV and CVV are built into a single component, that is a different animal.

If you're experiencing excessive oil consumption the first suspect would be the crank vent valve. If that is functioning normally I would recommend a higher viscosity oil.Please Google M60 OSV mod. Thanks

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[bigperm206]

Why don't you share the information you found with Google?Or, you can type BMW M60 OSV mod into Google and then choose the diy write up which best suits you. Plus, the diy write ups do a much better job of explaining this, to include pictures, than I could do.

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[nonturbodan]

Please Google M60 OSV mod. Thanks

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You know what? I actually did. Used your exact search term. M60 OSV mod. Pulls up a thread by a guy who doesn't know the difference between the crankcase vent valve and the oil separator and a website about crank vent valves. None of this explains why you would think you need to screw with your oil separator.

Do you not know the difference between the oil separator and the crank vent valve?

[eddycooper]

Please Google M60 OSV mod. Thanks

Be aware the Google tailors search results based on a person's location, previous searches, browsing history, etc. Don't expect that someone else will see the same results that you do - they probably won't. If there is a website that you're referring to, just post the link here!

[bigperm206]

Be aware the Google tailors search results based on a person's location, previous searches, browsing history, etc. Don't expect that someone else will see the same results that you do - they probably won't. If there is a website that you're referring to, just post the link here!Thanks for the info. The search function on BF actually pulls up a couple of articles. My Google search found this, meeker.co.uk. Timm's site is a wealth of knowledge. There are numerous other links which come back to posts on bimmerforums.

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[bigperm206]

You know what? I actually did. Used your exact search term. M60 OSV mod. Pulls up a thread by a guy who doesn't know the difference between the crankcase vent valve and the oil separator and a website about crank vent valves. None of this explains why you would think you need to screw with your oil separator.

Do you not know the difference between the oil separator and the crank vent valve?There's a difference? I guess I'm too stupid to own BMWs. BTW, no one has actually answered my original question. Time to go sit in my e24 and wallow in self pity.

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[bigperm206]

There's a difference? I guess I'm too stupid to own BMWs. BTW, no one has actually answered my original question. Time to go sit in my e24 and wallow in self pity.

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[nonturbodan]

All you had to do was tell us what you're trying to achieve with this. Which is why we asked.

[bigperm206]

All you had to do was tell us what you're trying to achieve with this. Which is why we asked.I did. Please see my response to 93FIM5. It's okay, I kinda figured I would get the non helpful answers I did. My fault for asking.

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[bigperm206]

I did. Please see my response to 93FIM5. It's okay, I kinda figured I would get the non helpful answers I did. My fault for asking.

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[nonturbodan]

I did. Please see my response to 93FIM5. It's okay, I kinda figured I would get the non helpful answers I did. My fault for asking.

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I did see that. Didn't make any sense. The stock OSV behind the timing case does not need to be serviced in any way. It has no moving parts and is maintenance free. All it does is separate oil droplets caught up in the crankcase vapors being vented and funnel them back to the crankcase.

Reason I chime in with these stupid and irrelevant questions is that I suspect you may be operating on bad information.

[eddycooper]

Is this what you're talking about? Not the OSV, but related. https://www.bimmerforums.com/forum/showthread.php?2302927-M60B40-CCV-mod-completed-full-write-up

Or is it this one? https://www.bimmerforums.com/forum/showthread.php?1758522-Possible-X5-External-Oil-Separator-Retrofit

[demetk]

Can the OSV get clogged up?

[bigperm206]

Is this what you're talking about? Not the OSV, but related. https://www.bimmerforums.com/forum/showthread.php?2302927-M60B40-CCV-mod-completed-full-write-up

Or is it this one? https://www.bimmerforums.com/forum/showthread.php?1758522-Possible-X5-External-Oil-Separator-RetrofitMore so the first one. There are several diys of varying degrees of pertinent information. I looked thru a bunch of them but what I wanted, as originally stated, was someone who had recently done the mod to chime in. Unfortunately, for me, it appears no one has done this mod recently. Or, maybe there hasn't been any updates/improvements to speak of recently and that's cool too. At least I learned something new about Google.

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[bigperm206]

I did see that. Didn't make any sense. The stock OSV behind the timing case does not need to be serviced in any way. It has no moving parts and is maintenance free. All it does is separate oil droplets caught up in the crankcase vapors being vented and funnel them back to the crankcase.

Reason I chime in with these stupid and irrelevant questions is that I suspect you may be operating on bad information.Well, you were right about your questions.

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[nonturbodan]

More so the first one. There are several diys of varying degrees of pertinent information. I looked thru a bunch of them but what I wanted, as originally stated, was someone who had recently done the mod to chime in. Unfortunately, for me, it appears no one has done this mod recently. Or, maybe there hasn't been any updates/improvements to speak of recently and that's cool too. At least I learned something new about Google.

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I did a variation of the first one on my 540. Easiest way to do it is install an M62NV manifold. It did seem to improve the idle somewhat but the difference was very slight. Benefit will depend on how much fuel/oil vapor you have coming through though. On an original, slightly worn nikasil motor it might be more beneficial.

[nonturbodan]

Can the OSV get clogged up?

Only source of clogging would be from inside the crankcase. The OSV has a constant stream of hot, fuel and oil laden mixture running through it, which I would expect to prevent any significant deposits from forming.

I know I never sold one in the five years I was with BMW. Plenty of crank vent valves, intake gaskets, valley pans. Never one oil separator.

[93FIM5]

Well I've installed a Mann Provent 200 and a PCV delete plate before for a supercharged 540i and so far the vehicle is having great results, working on a slightly more elegant solution at the moment. Basically deletes the PCV plate and runs a more efficient cyclone separator with return for oil thats collected vs the more basic catch can solutions. This what you're thinking?

-Greg

[bigperm206]

Well I've installed a Mann Provent 200 and a PCV delete plate before for a supercharged 540i and so far the vehicle is having great results, working on a slightly more elegant solution at the moment. Basically deletes the PCV plate and runs a more efficient cyclone separator with return for oil thats collected vs the more basic catch can solutions. This what you're thinking?

-GregGreg, thanks for the reply. Yes, that sounds like what I was thinking of.

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[84318i]

Only source of clogging would be from inside the crankcase. The OSV has a constant stream of hot, fuel and oil laden mixture running through it, which I would expect to prevent any significant deposits from forming.

I know I never sold one in the five years I was with BMW. Plenty of crank vent valves, intake gaskets, valley pans. Never one oil separator.

From the 3 or 4 m6x I've taken apart and rebuilt 3, one had a cracked osv so I had it replaced . They don't have moving parts as you said , but they are plastic and get brittle especially if someone gets in there to work on the timing covers or oil pump it's a small price to pay to just swap it out while you are in there kind of thing . I've seen the neck on these brake ...

[bigperm206]

From the 3 or 4 m6x I've taken apart and rebuilt 3, one had a cracked osv so I had it replaced . They don't have moving parts as you said , but they are plastic and get brittle especially if someone gets in there to work on the timing covers or oil pump it's a small price to pay to just swap it out while you are in there kind of thing . I've seen the neck on these brake ...Thanks for the info.

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[93FIM5]

Thanks for the info.

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So what’s your plan?

-Greg


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[bigperm206]

So what’s your plan?

-Greg


Sent from my iPhone using TapatalkWell, my trans just puked so getting that fixed is now the first priority. I was looking at the delete plate and then adding the aftermarket catch can and attaching it with braided hose. Hoping to make it look as OEM as possible.

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