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+--- Thread: what to do with oil vapor vent (/showthread.php?tid=1956)
what to do with oil vapor vent - larsalan - 11-10-2010
Is there some low cost DIY way to recycle the oil vapor off the my valve cover vent. A way that doesn't put hot blowby into my air filter and intake?
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Maybe I just need to seal up that plastic piece inside the intake box that is leaking oil all over the filter.
maybe like these
http://www.superturbodiesel.com/std/home-made-oil-separator-for-california-617-turbo-t-12.html
^ forced what is that little separator tank with the orange cap?
and where is the oil going to? Into a holding tank or down to the oil pan?
RE: what to do with oil vapor vent - ben2go - 11-10-2010
Cheapest I found.Cheaper than DIY.My last one cost me $40 in brass fittings and hose.
http://teamc.com/i-4554459-moroso-performance-85406-breather-tank.html
RE: what to do with oil vapor vent - larsalan - 11-11-2010
I was thinking, I have some mason jars and some fuel line. Maybe I can just pour the gas out and catch the oil to be poured back in?
RE: what to do with oil vapor vent - ben2go - 11-11-2010
There shouldn't be any gas and glass will vibrate and bust.
RE: what to do with oil vapor vent - larsalan - 11-11-2010
^by gas I meant vapor. not gasoline.
Well the glass didn't bust but the connections are leaky. Now, I think I will just dump all the vapor out onto the pavement.
How much oil is really to be recaptured? just a bit or what? I had a 700 mile road trip the other day that burned a quart. As long as I have to top off the oil level maybe I just spill a little out with the vapor.
RE: what to do with oil vapor vent - ben2go - 11-11-2010
Ohhh I see.Yes you can do that.There will still be some oily mist.I use stainless steel wool in my catch tanks to give the mist something to cling to and cut down on a greasy mess under the hood.I also plumb back to the oil sump and use a check valve to keep from blowing back into the catch tank.
RE: what to do with oil vapor vent - Olivier - 11-11-2010
I was told not to do any change on the E300TD as its the way the vavles are getting lubricated with the oil fumes/ vapors?
Since then I left it in.
RE: what to do with oil vapor vent - larsalan - 11-11-2010
^ sounds stupid. There is still plenty of oil vapor there. I just don't want oil all over my air filter and hot air in my intake.
Now that the blowby is being spilled on the pavement and not into the intake I am getting a lot of white smoke in the exhaust. Can be minimized with throttle control. I guess all that dense cool air is the cause?
so what do you guys say
sticky rings?
poorly timed IP?
poor valve adjustment?
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Italian tune up? Overfilled oil?
Was just cruising around and had minimal smoke in town. At highway speed one big cloud off smoke came out when I accelerated from like 60-65+. Then I tried the same acceleration from 60 and got a black and white cloud. That was the last smoke.
What's up with that? Just burned off the oil to a lower level or what could have been going on?
RE: what to do with oil vapor vent - ConnClark - 11-11-2010
If you have a catch can the best thing you can do is vent the rest of the vapors back into your intake after the filter. This puts a slight vacuum in the crankcase which increases power slightly. It also burns unburned fuel and blow by gasses. The white smoke is probably blowby gasses.
RE: what to do with oil vapor vent - ben2go - 11-11-2010
(11-11-2010, 03:53 PM)Olivier I was told not to do any change on the E300TD as its the way the vavles are getting lubricated with the oil fumes/ vapors?
Since then I left it in.
The head and all it's componets,IE valves,tappets,rockers,cam,etc..,get pressurized oil from the oil sump pump.The crank case pressure come from the spinning internal parts and the compression blowing past the pistons.
(11-11-2010, 06:55 PM)ConnClark If you have a catch can the best thing you can do is vent the rest of the vapors back into your intake after the filter. This puts a slight vacuum in the crankcase which increases power slightly. It also burns unburned fuel and blow by gasses. The white smoke is probably blowby gasses.
Turbo diesels don't have vacuum unless the air filter is enclosed like the factory unit.
RE: what to do with oil vapor vent - rdirtycar - 11-11-2010
This seems unethical for some reason, but it's the best thing i've come up with so far. It's some OE style Napa heater hose with a 90 degree bend about five inches from the end. Cut the little bent end shorter and whoosh, definitely more oil consumption. A lot of oil vapor in the intake clogs up all the sensors and the ports in the head. I had an 8th inch of crud in my intake manifold.
[attachment=3848]
its going to last about a month
RE: what to do with oil vapor vent - ConnClark - 11-11-2010
(11-11-2010, 07:02 PM)ben2go Turbo diesels don't have vacuum unless the air filter is enclosed like the factory unit.
Even an open K&N has some vacuum behind it. Without a pressure differential there would be no air flow through the filter.
(11-11-2010, 07:19 PM)rdirtycar A lot of oil vapor in the intake clogs up all the sensors and the ports in the head. I had an 8th inch of crud in my intake manifold.The oil has to combine with something to make crud. Typically its soot from the EGR but from your photo we see you have fixed that.
RE: what to do with oil vapor vent - E300TSC - 11-11-2010
(11-11-2010, 07:02 PM)ben2go(11-11-2010, 03:53 PM)Olivier I was told not to do any change on the E300TD as its the way the vavles are getting lubricated with the oil fumes/ vapors?
Since then I left it in.
The head and all it's componets,IE valves,tappets,rockers,cam,etc..,get pressurized oil from the oil sump pump.The crank case pressure come from the spinning internal parts and the compression blowing past the pistons.
He's referring to the valve seats. The OM606 is prone to valve seat recession and the oil vapor in the intake is essential to prevent or reduce this tendency.
RE: what to do with oil vapor vent - larsalan - 11-11-2010
@ rdirtycar
That's just what I have setup right now. Cost like $7 at truevalue
I feel like it has been a definite performance improvement on my old 617
RE: what to do with oil vapor vent - ForcedInduction - 11-12-2010
(11-11-2010, 07:37 PM)E300TSC The OM606 is prone to valve seat recession and the oil vapor in the intake is essential to prevent or reduce this tendency.
Thats a different problem oil will have no help over. G@s engines have a solvent spraying directly at the valve, washing off all oil, yet they don't have issues.
RE: what to do with oil vapor vent - Olivier - 11-12-2010
Thank you E300TSC, this is what I ment indeed.
this is also why they sell this for car that run on LPG as no lubrification:
http://cgi.ebay.co.uk/LPG-autogas-AFC-004-Original-Flash-Lube-KIT-Flashlube-/300316606163?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item45ec43bed3