[200q20v] Audi 20V Turbo Crankcase Breather S.... Good closed system possible ? link to be studied !

Fri Nov 3 11:49:25 EST 2000

Hello !

In previous threads we discussed about the pros and cons
against closed and open breather systems. I stated that 
it might be difficult to make closed system with good 
oil/air separation efficiency. 
http://www.walkerairsep.com/airseps/
This product claims to have efficiency of 90 to 97%  
if I understood correctly

Here might be the closed loop solution for further investigation
http://www.walkerairsep.com/airseps/remote.html
Link found with the great help of Steve Hackett

Who lives close to this company ?
9255 San Fernando Rd.
Sun Valley, CA 91352
p (818) 252-7788
f (818) 252-7785 
sales at walkerairsep.com

... and has time and energy to call the company 
and  study the products further ?

My time difference is 10 hours from Finland time to CA.

I have sent a written inquiry to the company via email. 

rgs, 
Tommy

> > -----Original Message-----
> > From: EXT Steve Hackett [mailto:sbhack at attglobal.net]
> > Sent: 03. November 2000 4:55
> > To: 200q20v at audifans.com
> > Cc: tommy.arnberg at nokia.com
> > Subject: Re: [200q20v] Audi 20V Turbo Crankcase Breather 
> > System Tuning,
> > - some hel p found
> > 
> > 
> > I haven't investigated this too much but might this be a cure?
> > http://www.walkerairsep.com/how/
> > 
> > At 10:43 AM 11/1/00 +0200, you wrote:
> > >Hello  !
> > >
> > >THE BIGGEST PROBLEM IS THAT WITH HIGH
> > >BOOST THE CRANKCASE OIL/AIR MIXTURE FLOW GETS INTO THE
> > >INLET VALVES AND STICKS TO THE VALVE SURFACE
> > >AND AFTER LONGER HARD USE THE INLET VALVES ARE PROBABLY NOT
> > >94% TO 97% TIGHT ANY MORE !
> > >
> > >---> this means lower HP and higher fuel consumption !
> > >
> > >Breather Medicine seems to be allready quite close:
> > >http://www.martelbros.com/stefs/23.htm
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: EXT Phil Rose [mailto:pjrose at frontiernet.net]
> > > > Sent: 31. October 2000 18:56
> > > > To: C1J1Miller at aol.com
> > > > Cc: tommy.arnberg at nokia.com; ouellette at snet.net;
> > > > birabrakes at egroups.com;
> > > > 200q20v at audifans.com
> > > > Subject: Re: [200q20v] Re: [birabrakes] Audi 20V Turbo Crankcase
> > > > Breather System Tuning, help neede d !
> > > >
> > > >
> > > > This sounds exactly like the "problem" I recently posted  on
> > > > the 200q20v
> > > > list. My Michelin Man hose quite suddenly has started 
> > collecting large
> > > > amounts of oil (well, OK teaspoons full) very soon after 
> > my ecu chip
> > > > upgrade was done. Totally dry before that.  I suspected 
> > the crankcase
> > > > breather as the source and thought it might be a 
> > defective pressure
> > > > regulator valve. Right now I'd say that my MM hose is 
> > acting as the
> > > > "settling tank", but obviously we'd all be much better 
> > off to have oil
> > > > condense before reaching the IC, MM or IM.
> > > >
> > > > In normal spirited street driving, the oil from my car that's
> > > > "lost" this
> > > > way appears to amount to no more than 1/2 qt in 2-3K 
> > miles. That upper
> > > > limit assumes none of the total drop in oil level is from 
> > from other
> > > > reasons (burning, etc). But in any case it makes a mess of
> > > > the MM hose and
> > > > I'd like find a fix, if possible. Perhaps there's room 
> > for a "settling
> > > > tank" to be fitted in the breather hose line near the
> > > > right/rear corner of
> > > > the engine just before the cranckcase pressure regulator
> > > > valve. In fact,
> > > > possibly the high-pressure washer bracket could be used to
> > > > secure it. Seems
> > > > all it would take is two short lengths of rubber hose, 4 
> > clamps and an
> > > > appropriate container. But would it stay cool enough back
> > > > there to condense
> > > > most of the oil?
> > > >
> > > > Phil R.
> > > >
> > > >
> > > > At 9:24 AM -0500 10/31/00, C1J1Miller at aol.com wrote:
> > > > >In a message dated Tue, 31 Oct 2000  6:40:05 AM Eastern
> > > > Standard Time,
> > > > >tommy.arnberg at nokia.com writes:
> > > > >
> > > > ><<
> > > > >Hello !
> > > > >
> > > > >As you all know the breather system is closed
> > > > >and when boost is a little higher than stock,
> > > > >then the crankcase ventilation system in 3B
> > > > >engine (200 20V)  pushes the polluted oily air fume back
> > > > >to Turbo charger "mouth"
> > > > >
> > > > >- conceguences:
> > > > >    * fuel octane rating in mixture to be burned gets lower
> > > > >    *   Inter cooler cooling ability gets worse because of
> > > > oil-air fume
> > > > >     *  the inlet valves get burned oil build up (the 
> > worst of  all)
> > > > >     * air into engine gets warme
> > > > >===============
> > > > >The operation of the crankcase breather hose is explained in
> > > > detail on Scott
> > > > >Mockry's excellent (as always) pages, here:
> > > > >http://www.sjmautotechnik.com/20vboost.html#hose
> > > > >
> > > > >"This breather hose is routed around the back of the engine
> > > > and one end
> > > > >connects to the round black crankcase pressure
> > > > >     regulator valve near the back of the valve cover. This
> > > > black regulator
> > > > >valve, controls the flow of crankcase fumes to the turbo
> > > > >     intake boot. The valve has two ports inside, one is
> > > > approximately 0.400
> > > > >diameter and a smaller one that is approximately
> > > > >     0.180 inches. The larger port and the smaller port are
> > > > open during low
> > > > >boost operation but when the turbo makes enough
> > > > >     boost and flows enough air to produce a vacuum on the
> > > > suction side of
> > > > >the turbo, the regulator valve diaphragm sucks closed
> > > > >     and blocks off the larger port. This leaves only the
> > > > smaller port open
> > > > >to flow crankcase breather fumes. "
> > > > >
> > > > >There is more, including a diagram, but the basics are that
> > > > the breather is
> > > > >mostly closed off during higher boost conditions.
> > > > >======================
> > > > >
> > > > >
> > > > >The Gastank ventilation is operated with the
> > > > >"Blue valve" to inlet manifold. The piping has a
> > > > >valve that prevents back flow from inlet manifold during boost
> > > > >condition and during vacuum it sucks the air from 
> crank case and
> > > > >through the blue valve from gas tank ventilation system.
> > > > >
> > > > >Has anyone disconnected / modified the stock system following
> > > > >way or better way ?  what is the right way.   (I know 
> this is not
> > > > >legal but otherwise the engine gets older a lot faster !)
> > > > >
> > > > >[ Crank_breath.ppt ]
> > > > >
> > > > >If someone knows good  product that solves this problem,
> > > > >please mail www-pages and/or source for it !
> > > > >
> > > > >rgs,
> > > > >Tommy
> > > > > >>
> > > > >
> > > > >Looks to me like you want an oil collector system to limit
> > > > oily vapor from
> > > > >being combusted. I've seen other turbo cars install a
> > > > "settling tank" where
> > > > >the vapor can collect, condense, and later be drained...
> > > > >
> > > > >Tommy:  can you store that file somewhere that the 200q20v
> > > > owners can access
> > > > >it?
> > > > >
> > > > >On my car, with 5000 mile oil intervals, I burn very little
> > > > measurable oil;
> > > > >perhaps 1/2 quart at most?
> > > > >chris
> > > >
> > 
> 