Today's Message Index:
----------------------
1. 04:44 AM - Re: Re: Oil Burn (James, Clive R)
2. 06:12 AM - Re: Re: oil Usage (Lynn Matteson)
3. 06:15 AM - Re: Re: oil Usage (Lynn Matteson)
4. 07:58 AM - Re: Oil Burn (dons701)
5. 10:38 AM - Re: Re: Oil Burn (Lynn Matteson)
6. 11:24 AM - Re: Oil Burn (dons701)
7. 01:39 PM - Re: Re: Oil Burn (Lynn Matteson)
8. 06:12 PM - Re: Re: oil Usage (zeprep251@AOL.COM)
9. 06:13 PM - Re: Re: Oil Burn (zeprep251@aol.com)
Message 1
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My 2200a uses a squirt or two every three hours. I've never measured it
accurately but I suspect a quart about over 20 hours or maybe less.
It's done 1100 hrs now, it #596 and is on 15w50. Changing oil types
never made a difference so I stick to multi grade all year. It's always
used the same amount so I suspect it's burning it via the bores.
The compressions were always disappointing prior to the new heads at
1004 hrs and now they are great though the prices I paid where
astronomic.
Chucking it about makes what's in the bottle worse, though there's never
that much, recently I've routed the hose up higher via a loop of scat
tube to run it to the highest point in the cowls that this seems to have
made a minor improvement. Only done about 10 hours since so maybe just
me being optimistic.
My 3300 uses about the same as the 2200 but that's only done 15 hours
and I'm hoping this will improve. There was a 2200a in our hangar that
was about #900 and that never used a drop. The 3300 that I looked after
until it was sold had 300 hrs on it and it uses about the same as the
others mentioned above.
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
Stephen Smith
Sent: 03 July 2009 05:48
Subject: JabiruEngine-List: Re: Oil Burn
--> <sRoydSmith@Hotmail.com>
My 3300 has been flying for two years and has about 550 hours on it.
Here in Santa Rosa California I use Aeroshell 15w50 in the winter and
Aeroshell 100 plus in the summer. Consumption has gone up over the past
150 hours or so. It is now at about 1 quart per 450 miles.
I have minor seepage in several places on the engine but nothing I would
call a leak. The volume of oil in the separator has been going up, but
sure does not account for anything like the quantity being consumed.
The spark plugs look reasonable - not fouled or dark. Compression check
25 hours ago is down to 70, 76, 74, 68, 60, 75. Not sure where the oil
is going if its not past the rings and out the tail pipe.
Yes, I toss my plane around a bit - it asks for it, I swear! In high
angle climbs and steep banks I can smell hot oil for a few seconds.
Frankly the consumption seem quite high and a bit disappointing. Anyone
else with 550 or more hours? What is your consumption?
My engine's dipstick had the S turns in it. I have flattened them out
which makes the dipstick longer and allows me to use the original marks
for full/add while having the oil level a bit lower. It also makes it
less likely the oil level will be off the end of the dipstick. When
that happens, you don't know how much to add.
Steve
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=251271#251271
Message 2
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Chris-
I TRY to go to as many fly-ins as possible, but it seems that if I
plan on going, that alerts the weatherman to throw some showers in my
path. : )
I got turned off on the Sun 'n' Fun trip for the past three years,
and the same for the Virginia Festival of Flight for the past two
years. However, I always make it to Oshkosh, sometimes even in the
winter. I go to a lot of breakfasts in the Michigan, Indiana, Ohio,
and sometimes eastern Illinois area. Where are you located, Chris?
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 693.9 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Status: flying
do not archive
On Jul 5, 2009, at 5:29 PM, ces308 wrote:
>
> Lynn and Gary,
> I will take some pictures of my set up tomorrow and show you guys.
> I believe my engine is doing fine on the oil burn...you have to
> remember that we are talking oz's of oil here..when you only have
> 2.4 qts it just seems like a lot when a little is missing.when
> talking on my O-320-E2D we talk in Quarts...not oz's.Lynn...you go
> to any fly-ins? I will put you on our Mi Kolb email list and maybe
> we can hook up some morning and talk Jabs !
>
> chris ambrose
> M3X/Jab A-2200
> N327CS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=251621#251621
>
>
Message 3
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| Subject: | Re: RE: oil Usage |
It may be the difference between your Kolb pusher, and my enclosed-
engine tractor Kitfox, but your plumbing sounds really convoluted!
This oil collection business doesn't seem to me to have to be all
that complicated, but of course in an engine-exposed environment
things will be different.
Keep us posted will you, Gary?
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 693.9 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Status: flying
do not archive
On Jul 5, 2009, at 4:22 PM, zeprep251@aol.com wrote:
> Lynn,
> Oil collection bottle is directly behind my seat on the floor of
> the fuselage.The last of the vent exits thru the floor on the
> bottom.It extends 1 inch below the bottom and is cut at 90 degrees
> to the pipe.I could place a short piece of 1/2" copper tube, cut at
> a 45 degree angle facing forward, in the tube which could slightly
> pressurize the system.I have had a modified PCV valve in the line 2
> inches from the oil stick for some time now,hoping to put the
> crankcase in a partial vacuum,letting air out but not back in.This
> slowed the rate of oil loss but perhaps not for the reason it was
> installed.It may be just giving the oil a place to collect or to
> ubstruct its movement.
> I can easily test the collector bottle for vacuum, for there
> is a 1/4 inch line installed from beside my seat thru the lid to
> near the bottom of the bottle to evacuate collected oil with a
> vacuum pump. If that test shows vacuum,I will try the angle vent to
> reverse it.The PCV valve will not let the crankcase be pressurized
> but could eliminate vacuum in the vent system ahead of it.
> I'm pretty sure that not all of the missing oil from the
> engine ends up in the collector, but it does not leak externally at
> all.If it burns it,it burns it,and I can live with that.I would
> just like to keep the collector dry as possible.
> Thanks for the input.I'll let you know what I find.
> Gary Aman
>
>
> -----Original Message-----
> From: Lynn Matteson <lynnmatt@jps.net>
> To: jabiruengine-list@matronics.com
> Sent: Sun, Jul 5, 2009 1:33 pm
> Subject: Re: JabiruEngine-List: RE: oil Usage
>
> <lynnmatt@jps.net>
>
> Gary-
>
> I guess I'd have to see where the oil collection bottle is in
> reference to the airflow to know if it seemed right for your
> installation. However, someone with the same setup might chime in
> and help you out. I just re-read your original post, and I'm not
> sure if you're indicating a problem or not. If all the expelled oil
> ends up in the bottle, that seems right to me, unless you think TOO
> much oil is being expelled by the engine. Just keep in mind that if
> the vent overboard is in a high airflow area, maybe a vacuum is
> being formed and helping to draw oil out of the engine.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062, 693.9 hrs
> Sensenich 62"x46" Wood prop
> Electroair direct-fire ignition system
> Status: flying
>
>
> On Jul 5, 2009, at 6:59 AM, zeprep251@aol.com wrote:
>
> > Lynn
> > It,s a pusher,the rear of the engine is covered by a molded >
> fairing that smooths airflow into the cooling shrouds.I have only >
> one picture on the computer to send but maybe it will show enough >
> to explain the set-up
> > G,Aman
> >
> >
> > -----Original Message-----
> > From: Lynn Matteson <lynnmatt@jps.net>
> > To: jabiruengine-list@matronics.com
> > Sent: Sat, Jul 4, 2009 10:11 am
> > Subject: Re: JabiruEngine-List: RE: oil Usage
> >
> <lynnmatt@jps.net>
> >
> > Thanks, Gary...it really helps figure out what may be going on
> with > the engine if we would all post the serial number when we
> request > help....kinda like going to the doctor. He/she always
> needs to know > your age.
> >
> > I'm not familiar with the Kolb...is it a pusher or tractor set-
> up? > Does your oil vent line run uphill right after the dipstick
> tube > attachment, then down to the bottle? And is the Kolb an
> exposed > engine?
> >
> > My Kitfox is an enclosed cowl, tractor, and only requires about
> 10 > oz of oil addition between 25 hour oil changes.
> >
> > Lynn Matteson
> > Kitfox IV Speedster, taildragger
> > Jabiru 2200, #2062, 689.3 hrs
> > Sensenich 62"x46" Wood prop
> > Electroair direct-fire ignition system
> > Status: flying
> >
> >
> > On Jul 4, 2009, at 12:55 AM, zeprep251@aol.com wrote:
> >
> > > Lynn,
> > > Believe it is #1295
> > > G.Aman
> > >
> > >
> > > -----Original Message-----
> > > From: Lynn Matteson <lynnmatt@jps.net>
> > > To: jabiruengine-list@matronics.com
> > > Sent: Thu, Jul 2, 2009 3:27 pm
> > > Subject: Re: JabiruEngine-List: RE: oil Usage
> > >
> <lynnmatt@jps.net>
> > >
> > > What serial number?
> > >
> > > Lynn Matteson
> > > Kitfox IV Speedster, taildragger
> > > Jabiru 2200, #2062, 687.3 hrs
> > > Sensenich 62"x46" Wood prop
> > > Electroair direct-fire ignition system
> > > Status: flying
> > > do not archive
> > >
> > >
> > > On Jul 2, 2009, at 9:37 AM, zeprep251@aol.com wrote:
> > >
> > > > I have 440hrs on the 2200a in a MK3-C Kolb My vent system >
> enters > a > 1 pint catch bottle then vents overboard The airframe
> > stays > clean > by the vent hose,so all the oil ends up in the >
> bottle.This > > indicates to me that the vent system on this engine
> > requires some > > rethinking by Jabiru.My IO-470 continental used
> > less oil in 25 > hrs > than the Jabiru does in 5hrs.This is a
> great > little > engine,they > just need to tweak it in the vent
> and intake > systems.
> > > > Gary Aman Akron Oh
>
>
> www.matronics.com/contribution _-
> ===========================================================
Message 4
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While I am new to the 2200A I have worked with many other types of piston engines,
racing and others. The 2200A is interesting in that there seems to be no real
control of oil mist and crankcase pressure, i.e. collective combustion leakage
past the rings normally found in all running piston engines. I have not removed
the oil pan but, according to the engine parts manuals there is no crank
scraper or windage tray as found in many race engines to control the oil mist
wrapped around a spinning crankshaft. This crankcase pressure with mist and
oil splatter obviously makes it's way out of the engine by using the dipstick
tube / oil vent hose. A system that reduces or eliminates any liquid oil from
making it's way out of the engine, allowing only "dry" normal combustion pressure
to be relieved, would be optimal. Separating oil from the air would need to
be done in stages by mechanically removing as much oil mist as possible from
the spinning crank as said earlier, with scrappers and or a windage tray similar
to any common race engine. Even a number of circular fine mesh screens situated
on the dipstick might baffle the liquid oil but still allow gasses to escape.
The ultimate goal would not only be to eliminate the oil collection bottle
and retain oil in the engine, but would be to create a negative pressure in the
crankcase as this would increase power by making the rings seal more efficiently.
Initially as time allows, i will experiment with the dipstick baffle modification
and later, a way of creating crankcase vacuum utilizing exhaust velocity
in the exhaust pipe and report back on this site.
I know there are many creative people on this site that might have already
figured out some of these issues, or have better ideas :). If I am missing something
or I am not correct let me and others know, lets learn together for the
benefit of all. Thanks for reading, Don
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=251750#251750
Message 5
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Well, one thing different from normal (to me anyway) racing engines
that I've worked on, is that the crank isn't down near the oil in the
pan, so no need...that I can see...for a windage tray. The "wind"
just doesn't blow over the oil as it does in a V8, for example. The
cam is between the spinning crank and the oil...approximately 4-6
inches away...and also, the speed of the crank is way below the
normal racing engine, so I doubt that a windage tray would help much.
Since I removed my fuel pump and blocked the hole with a flat metal
plate, I've been thinking of maybe using that hole to get a little
more breathing area for the engine, but haven't moved past the
thinking stage.
It would be interesting to install a window in the oil pan and see
what goes on in there, oilwise, at 3000 or so rpm.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 695.8 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Status: flying
On Jul 6, 2009, at 10:58 AM, dons701 wrote:
> <burdon1@comcast.net>
>
> While I am new to the 2200A I have worked with many other types of
> piston engines, racing and others. The 2200A is interesting in that
> there seems to be no real control of oil mist and crankcase
> pressure, i.e. collective combustion leakage past the rings
> normally found in all running piston engines. I have not removed
> the oil pan but, according to the engine parts manuals there is no
> crank scraper or windage tray as found in many race engines to
> control the oil mist wrapped around a spinning crankshaft. This
> crankcase pressure with mist and oil splatter obviously makes it's
> way out of the engine by using the dipstick tube / oil vent hose. A
> system that reduces or eliminates any liquid oil from making it's
> way out of the engine, allowing only "dry" normal combustion
> pressure to be relieved, would be optimal. Separating oil from the
> air would need to be done in stages by mechanically removing as
> much oil mist as possible from the spinning crank as said earlier,
> with scrappers !
> and or a windage tray similar to any common race engine. Even a
> number of circular fine mesh screens situated on the dipstick might
> baffle the liquid oil but still allow gasses to escape.
> The ultimate goal would not only be to eliminate the oil
> collection bottle and retain oil in the engine, but would be to
> create a negative pressure in the crankcase as this would increase
> power by making the rings seal more efficiently. Initially as time
> allows, i will experiment with the dipstick baffle modification and
> later, a way of creating crankcase vacuum utilizing exhaust
> velocity in the exhaust pipe and report back on this site.
> I know there are many creative people on this site that might
> have already figured out some of these issues, or have better
> ideas :). If I am missing something or I am not correct let me
> and others know, lets learn together for the benefit of all. Thanks
> for reading, Don
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=251750#251750
>
>
Message 6
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Good point, the further the oil surface is away from the crank the better. But,
as long as oil is squirting from all the rods and mains while spinning at any
RPM there will be oil churning around down there. Any amount of oil making it's
way out of the vent hose is too much. Yes, it would be interesting just to
be able to remove the dipstick while the engine is running (without the prop
blast), I know I would not want to be looking to close down the dipstick tube.
[Laughing] Thanks, Don
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=251807#251807
Message 7
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Yes....you might get more than an eyefull. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 695.8 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Status: flying
do not archive
On Jul 6, 2009, at 2:24 PM, dons701 wrote:
> <burdon1@comcast.net>
>
> Good point, the further the oil surface is away from the crank the
> better. But, as long as oil is squirting from all the rods and
> mains while spinning at any RPM there will be oil churning around
> down there. Any amount of oil making it's way out of the vent hose
> is too much. Yes, it would be interesting just to be able to
> remove the dipstick while the engine is running (without the prop
> blast), I know I would not want to be looking to close down the
> dipstick tube. [Laughing] Thanks, Don
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=251807#251807
>
>
Message 8
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| Subject: | Re: RE: oil Usage |
Lynn,
? Testing indicates no vacuum at the vent exit.Going to try 100W in place of 15/50W
at next oil change.The first couple hours after the oil change the level
stays up on the stick.But after that it slowly starts to evaporate.I did not put
the first 188 hours on this engine,so it may have had an event that could cause
this issue.I,ll quit bitching now and keep adding oil as it needs it.It,s
a sweet running engine even with the carb twisted 20 degrees to even out the
egt's.
? Thanks G.Aman
-----Original Message-----
From: Lynn Matteson <lynnmatt@jps.net>
Sent: Mon, Jul 6, 2009 9:13 am
Subject: Re: JabiruEngine-List: RE: oil Usage
?
It may be the difference between your Kolb pusher, and my enclosed-engine tractor
Kitfox, but your plumbing sounds really convoluted! This oil collection business
doesn't seem to me to have to be all that complicated, but of course in
an engine-exposed environment things will be different.?
Keep us posted will you, Gary??
?
Lynn Matteson?
Kitfox IV Speedster, taildragger?
Jabiru 2200, #2062, 693.9 hrs?
Sensenich 62"x46" Wood prop?
Electroair direct-fire ignition system?
Status: flying?
do not archive?
?
?
On Jul 5, 2009, at 4:22 PM, zeprep251@aol.com wrote:?
?
> Lynn,?
> Oil collection bottle is directly behind my seat on the floor of > the fuselage.The
last of the vent exits thru the floor on the > bottom.It extends 1 inch
below the bottom and is cut at 90 degrees > to the pipe.I could place a short
piece of 1/2" copper tube, cut at > a 45 degree angle facing forward, in the
tube which could slightly > pressurize the system.I have had a modified PCV
valve in the line 2 > inches from the oil stick for some time now,hoping to put
the > crankcase in a partial vacuum,letting air out but not back in.This > slowed
the rate of oil loss but perhaps not for the reason it was > installed.It
may be just giving the oil a place to collect or to > ubstruct its movement.?
> I can easily test the collector bottle for vacuum, for there > is a 1/4
inch line installed from beside my seat thru the lid to > near the bottom of
the bottle to evacuate collected oil with a > vacuum pump. If that test shows
vacuum,I will try the angle vent to > reverse it.The PCV valve will not let the
crankcase be pressurized > but could eliminate vacuum in the vent system ahead
of it.?
> I'm pretty sure that not all of the missing oil from the > engine ends up
in the collector, but it does not leak externally at > all.If it burns it,it
burns it,and I can live with that.I would > just like to keep the collector dry
as possible.?
> Thanks for the input.I'll let you know what I find.?
> Gary Aman?
>?
>?
> -----Original Message-----?
> From: Lynn Matteson <lynnmatt@jps.net>?
> To: jabiruengine-list@matronics.com?
> Sent: Sun, Jul 5, 2009 1:33 pm?
> Subject: Re: JabiruEngine-List: RE: oil Usage?
>?
>?
> Gary-?
>?
> I guess I'd have to see where the oil collection bottle is in > reference to
the airflow to know if it seemed right for your > installation. However, someone
with the same setup might chime in > and help you out. I just re-read your
original post, and I'm not > sure if you're indicating a problem or not. If all
the expelled oil > ends up in the bottle, that seems right to me, unless you
think TOO > much oil is being expelled by the engine. Just keep in mind that
if > the vent overboard is in a high airflow area, maybe a vacuum is > being formed
and helping to draw oil out of the engine.?
>?
> Lynn Matteson?
> Kitfox IV Speedster, taildragger?
> Jabiru 2200, #2062, 693.9 hrs?
> Sensenich 62"x46" Wood prop?
> Electroair direct-fire ignition system?
> Status: flying?
>?
>?
> On Jul 5, 2009, at 6:59 AM, zeprep251@aol.com wrote:?
>?
> > Lynn?
> > It,s a pusher,the rear of the engine is covered by a molded > > fairing that
smooths airflow into the cooling shrouds.I have only > > one picture on the
computer to send but maybe it will show enough > > to explain the set-up?
> > G,Aman?
> >?
> >?
> > -----Original Message-----?
> > From: Lynn Matteson <lynnmatt@jps.net>?
> > To: jabiruengine-list@matronics.com?
> > Sent: Sat, Jul 4, 2009 10:11 am?
> > Subject: Re: JabiruEngine-List: RE: oil Usage?
> >?
> >?
> > Thanks, Gary...it really helps figure out what may be going on > with > the
engine if we would all post the serial number when we > request > help....kinda
like going to the doctor. He/she always > needs to know > your age.?
> >?
> > I'm not familiar with the Kolb...is it a pusher or tractor set-> up? > Does
your oil vent line run uphill right after the dipstick > tube > attachment, then
down to the bottle? And is the Kolb an > exposed > engine??
> >?
> > My Kitfox is an enclosed cowl, tractor, and only requires about > 10 > oz of
oil addition between 25 hour oil changes.?
> >?
> > Lynn Matteson?
> > Kitfox IV Speedster, taildragger?
> > Jabiru 2200, #2062, 689.3 hrs?
> > Sensenich 62"x46" Wood prop?
> > Electroair direct-fire ignition system?
> > Status: flying?
> >?
> >?
> > On Jul 4, 2009, at 12:55 AM, zeprep251@aol.com wrote:?
> >?
> > > Lynn,?
> > > Believe it is #1295?
> > > G.Aman?
> > >?
> > >?
> > > -----Original Message-----?
> > > From: Lynn Matteson <lynnmatt@jps.net>?
> > > To: jabiruengine-list@matronics.com?
> > > Sent: Thu, Jul 2, 2009 3:27 pm?
> > > Subject: Re: JabiruEngine-List: RE: oil Usage?
> > >?
> > >?
> > > What serial number??
> > >?
> > > Lynn Matteson?
> > > Kitfox IV Speedster, taildragger?
> > > Jabiru 2200, #2062, 687.3 hrs?
> > > Sensenich 62"x46" Wood prop?
> > > Electroair direct-fire ignition system?
> > > Status: flying?
> > > do not archive?
> > >?
> > >?
> > > On Jul 2, 2009, at 9:37 AM, zeprep251@aol.com wrote:?
> > >?
> > > > I have 440hrs on the 2200a in a MK3-C Kolb My vent system > > enters >
a > 1 pint catch bottle then vents overboard The airframe > > stays > clean >
by the vent hose,so all the oil ends up in the > > bottle.This > > indicates to
me that the vent system on this engine > > requires some > > rethinking by Jabiru.My
IO-470 continental used > > less oil in 25 > hrs > than the Jabiru does
in 5hrs.This is a > great > little > engine,they > just need to tweak it in
the vent > and intake > systems.?
> > > > Gary Aman Akron Oh?
>?
>?
>?
> www.matronics.com/contribution _-> ============================================================?
?
?
?
Message 9
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Lynn,
?I believe the later engines have a deeper oil pan to relieve the problem. G.Aman
-----Original Message-----
From: Lynn Matteson <lynnmatt@jps.net>
Sent: Mon, Jul 6, 2009 1:37 pm
Subject: Re: JabiruEngine-List: Re: Oil Burn
?
Well, one thing different from normal (to me anyway) racing engines that I've worked
on, is that the crank isn't down near the oil in the pan, so no need...that
I can see...for a windage tray. The "wind" just doesn't blow over the oil
as it does in a V8, for example. The cam is between the spinning crank and the
oil...approximately 4-6 inches away...and also, the speed of the crank is way
below the normal racing engine, so I doubt that a windage tray would help much.?
Since I removed my fuel pump and blocked the hole with a flat metal plate, I've
been thinking of maybe using that hole to get a little more breathing area for
the engine, but haven't moved past the thinking stage.?
?
It would be interesting to install a window in the oil pan and see what goes on
in there, oilwise, at 3000 or so rpm.?
?
Lynn Matteson?
Kitfox IV Speedster, taildragger?
Jabiru 2200, #2062, 695.8 hrs?
Sensenich 62"x46" Wood prop?
Electroair direct-fire ignition system?
Status: flying?
?
?
On Jul 6, 2009, at 10:58 AM, dons701 wrote:?
?
>?
> While I am new to the 2200A I have worked with many other types of > piston engines,
racing and others. The 2200A is interesting in that > there seems to be
no real control of oil mist and crankcase > pressure, i.e. collective combustion
leakage past the rings > normally found in all running piston engines. I
have not removed > the oil pan but, according to the engine parts manuals there
is no > crank scraper or windage tray as found in many race engines to > control
the oil mist wrapped around a spinning crankshaft. This > crankcase pressure
with mist and oil splatter obviously makes it's > way out of the engine by
using the dipstick tube / oil vent hose. A > system that reduces or eliminates
any liquid oil from making it's > way out of the engine, allowing only "dry"
normal combustion > pressure to be relieved, would be optimal. Separating oil
from the > air would need to be done in stages by mechanically removing as >
much oil mist as possible from the spinning crank as
said earlier, > with scrappers !?
> and or a windage tray similar to any common race engine. Even a > number of
circular fine mesh screens situated on the dipstick might > baffle the liquid
oil but still allow gasses to escape.?
> The ultimate goal would not only be to eliminate the oil > collection bottle
and retain oil in the engine, but would be to > create a negative pressure
in the crankcase as this would increase > power by making the rings seal more
efficiently. Initially as time > allows, i will experiment with the dipstick
baffle modification and > later, a way of creating crankcase vacuum utilizing
exhaust > velocity in the exhaust pipe and report back on this site.?
> I know there are many creative people on this site that might > have already
figured out some of these issues, or have better > ideas :). If I am missing
something or I am not correct let me > and others know, lets learn together
for the benefit of all. Thanks > for reading, Don?
>?
>?
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>?
> Read this topic online here:?
>?
> http://forums.matronics.com/viewtopic.php?p=251750#251750?
>?
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