Today's Message Index:
----------------------
1. 06:36 AM - Jabiru 3300 Thoughts On Oil Level (DaveG601XL)
2. 06:48 AM - Jabiru 3300 Thoughts On Oil Level (Beckman, Rick)
3. 07:47 AM - Re: Jabiru 3300 Thoughts On Oil Level (Tonyplane)
4. 09:23 AM - Re: Jabiru 3300 Thoughts On Oil Level (Mark Hubelbank)
5. 09:41 AM - Re: Jabiru 3300 Thoughts On Oil Level (Ivan)
6. 10:23 AM - Re: Jabiru 3300 Thoughts On Oil Level (Lynn Matteson)
7. 11:33 AM - Re: Jabiru 3300 Thoughts On Oil Level (JohnDRead@aol.com)
8. 11:56 AM - Re: Jabiru 3300 Thoughts On Oil Level (Don Honabach)
9. 01:50 PM - Re: Jabiru 3300 Thoughts On Oil Level (Kayberg@aol.com)
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| Subject: | Jabiru 3300 Thoughts On Oil Level |
I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most of the
week there. On my flight back to the Cincinnati area, I got bit by an oil
level gremlin.
With the Jabiru 3300 engine I have seen it mentioned in various forums that the
engine likes to only be serviced to the lower half of the hash-marked area of
the dipstick. I do not recall any precautions around this statement, but I saw
no reason for not heeding the advice. I think there is more than one dip stick
configuration, but my engine is a 2007 model with the latest type of dip
stick.
Since my engine has consumed very little oil over the past two years, I do not
have to put a lot of oil in and kept it no higher than half full on the hash mark.
Checking the oil level prior to my Oshkosh departure, the level was just
into the lower end of the hash mark. For a short local flight, I would have just
left it there and flown. Since I was going to be flying 4+ hours back to
home, I decided to add some oil. After pouring some oil in, I noticed that I
had about a quarter of a quart of oil left in the container so I just poured
the rest in. Why I did that, I do not know, but it seemed safe to do. Its only
a quarter of a quart, right? Afterward, the level was still just inside the upper
hash mark, right?
Well, after taking off and climbing out from Oshkosh, I noticed that my oil parameters
were not what I used to. Any day of the week, I usually see 50 PSI and
temperatures between 200-215 degrees F. When I initially leveled off at 1300
feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI and temperatures of
215F and climbing. A few minutes later I was still at 35 PSI (and wavering) with
the temperature climbing through 230F. In front of me was increasing areas
of ground fog. The nearest airport to the south was reporting 2 miles of visibility
and 200 feet ceilings. I certainly was not going to do VFR over the top
with any doubt in my aircraft. I had just passed Fond Du Lac (FLD), which is
one of the Oshkosh reliever airports during Airventure and it was still in VFR
conditions. I radioed in that I was coming in for a precautionary landing and
they held everybody up for me (thanks guys!).
On the ground I pulled the cowling and could find nothing wrong other than a dip
stick that was reading now a little over the full mark due to hot oil expansion.
After much pondering, the only thing I could think of was to de-service the
oil to a level more in tune with past practice. I pulled about a 1/3rd of a
quart out and got in line for takeoff.
This time off, I was at a rock solid 50 PSI and around 205F almost all the way
home. Go figure.
Your situation may certainly vary but I would say that the precaution of not filling
the Jabiru 3300 engine to the full oil mark holds true for me.
--------
David Gallagher
601 XL/Jabiru 3300
First flight 7/24/08
Upgraded 3/19/10
140+ hours and climbing!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=307301#307301
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| Subject: | Jabiru 3300 Thoughts On Oil Level |
Thanks for the insight, Dave!
Rick
DO NOT ARCHIVE
I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most of the
week there. On my flight back to the Cincinnati area, I got bit by an oil
level gremlin.
With the Jabiru 3300 engine I have seen it mentioned in various forums that the
engine likes to only be serviced to the lower half of the hash-marked area of
the dipstick. I do not recall any precautions around this statement, but I saw
no reason for not heeding the advice. I think there is more than one dip stick
configuration, but my engine is a 2007 model with the latest type of dip
stick.
Since my engine has consumed very little oil over the past two years, I do not
have to put a lot of oil in and kept it no higher than half full on the hash mark.
Checking the oil level prior to my Oshkosh departure, the level was just
into the lower end of the hash mark. For a short local flight, I would have just
left it there and flown. Since I was going to be flying 4+ hours back to
home, I decided to add some oil. After pouring some oil in, I noticed that I
had about a quarter of a quart of oil left in the container so I just poured
the rest in. Why I did that, I do not know, but it seemed safe to do. Its only
a quarter of a quart, right? Afterward, the level was still just inside the upper
hash mark, right?
Well, after taking off and climbing out from Oshkosh, I noticed that my oil parameters
were not what I used to. Any day of the week, I usually see 50 PSI and
temperatures between 200-215 degrees F. When I initially leveled off at 1300
feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI and temperatures of
215F and climbing. A few minutes later I was still at 35 PSI (and wavering) with
the temperature climbing through 230F. In front of me was increasing areas
of ground fog. The nearest airport to the south was reporting 2 miles of visibility
and 200 feet ceilings. I certainly was not going to do VFR over the top
with any doubt in my aircraft. I had just passed Fond Du Lac (FLD), which is
one of the Oshkosh reliever airports during Airventure and it was still in VFR
conditions. I radioed in that I was coming in for a precautionary landing and
they held everybody up for me (thanks guys!).
On the ground I pulled the cowling and could find nothing wrong other than a dip
stick that was reading now a little over the full mark due to hot oil expansion.
After much pondering, the only thing I could think of was to de-service the
oil to a level more in tune with past practice. I pulled about a 1/3rd of a
quart out and got in line for takeoff.
This time off, I was at a rock solid 50 PSI and around 205F almost all the way
home. Go figure.
Your situation may certainly vary but I would say that the precaution of not filling
the Jabiru 3300 engine to the full oil mark holds true for me.
--------
David Gallagher
601 XL/Jabiru 3300
First flight 7/24/08
Upgraded 3/19/10
140+ hours and climbing!
Message 3
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
David,
What you described is typical for my Jab/XL. I usually fly locally at about 1/3
mark and a little over 1/2 mark for long flights.
Tony Graziano
N493TG; 601XL; Jab 3300 with 589 smooth running minimal maintenance hours. First
flight 6 July 05.
Sent from my iPhone
On Aug 3, 2010, at 8:35 AM, "DaveG601XL" <david.m.gallagher@ge.com> wrote:
>
> I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most of
the week there. On my flight back to the Cincinnati area, I got bit by an oil
level gremlin.
>
> With the Jabiru 3300 engine I have seen it mentioned in various forums that the
engine likes to only be serviced to the lower half of the hash-marked area
of the dipstick. I do not recall any precautions around this statement, but I
saw no reason for not heeding the advice. I think there is more than one dip
stick configuration, but my engine is a 2007 model with the latest type of dip
stick.
>
> Since my engine has consumed very little oil over the past two years, I do not
have to put a lot of oil in and kept it no higher than half full on the hash
mark. Checking the oil level prior to my Oshkosh departure, the level was just
into the lower end of the hash mark. For a short local flight, I would have
just left it there and flown. Since I was going to be flying 4+ hours back to
home, I decided to add some oil. After pouring some oil in, I noticed that
I had about a quarter of a quart of oil left in the container so I just poured
the rest in. Why I did that, I do not know, but it seemed safe to do. Its only
a quarter of a quart, right? Afterward, the level was still just inside the
upper hash mark, right?
>
> Well, after taking off and climbing out from Oshkosh, I noticed that my oil parameters
were not what I used to. Any day of the week, I usually see 50 PSI and
temperatures between 200-215 degrees F. When I initially leveled off at 1300
feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI and temperatures
of 215F and climbing. A few minutes later I was still at 35 PSI (and wavering)
with the temperature climbing through 230F. In front of me was increasing areas
of ground fog. The nearest airport to the south was reporting 2 miles of visibility
and 200 feet ceilings. I certainly was not going to do VFR over the top
with any doubt in my aircraft. I had just passed Fond Du Lac (FLD), which is
one of the Oshkosh reliever airports during Airventure and it was still in VFR
conditions. I radioed in that I was coming in for a precautionary landing and
they held everybody up for me (thanks guys!).
>
> On the ground I pulled the cowling and could find nothing wrong other than a
dip stick that was reading now a little over the full mark due to hot oil expansion.
After much pondering, the only thing I could think of was to de-service
the oil to a level more in tune with past practice. I pulled about a 1/3rd of
a quart out and got in line for takeoff.
>
> This time off, I was at a rock solid 50 PSI and around 205F almost all the way
home. Go figure.
>
> Your situation may certainly vary but I would say that the precaution of not
filling the Jabiru 3300 engine to the full oil mark holds true for me.
>
> --------
> David Gallagher
> 601 XL/Jabiru 3300
> First flight 7/24/08
> Upgraded 3/19/10
> 140+ hours and climbing!
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=307301#307301
>
>
>
>
>
>
>
>
>
>
Message 4
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
Perhaps it would be a good place to get a word from Peter at Jabiru on
the unusually narrow range Jabiru engines will accept for oil levels. To
me this borders on a safety issue as it is not possible to have any
reasonable amount of extra oil in the sump.
Could not the sump have been made slightly larger to provide space for
the normal 2+ quart range we see in other aircraft engines between
minimum and maximum oil levels?
I know that Jabiru engines have a very low normal oil consumption rate
but the significant word there is "normal". A slight increase in
consumption during a long flight could spoil your day.
On 8/3/2010 9:46 AM, Beckman, Rick wrote:
> --> JabiruEngine-List message posted by: "Beckman, Rick"<Rick.Beckman@atk.com>
>
> Thanks for the insight, Dave!
> Rick
>
> DO NOT ARCHIVE
>
>
> I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most of
the week there. On my flight back to the Cincinnati area, I got bit by an oil
level gremlin.
>
> With the Jabiru 3300 engine I have seen it mentioned in various forums that the
engine likes to only be serviced to the lower half of the hash-marked area
of the dipstick. I do not recall any precautions around this statement, but I
saw no reason for not heeding the advice. I think there is more than one dip
stick configuration, but my engine is a 2007 model with the latest type of dip
stick.
>
> Since my engine has consumed very little oil over the past two years, I do not
have to put a lot of oil in and kept it no higher than half full on the hash
mark. Checking the oil level prior to my Oshkosh departure, the level was just
into the lower end of the hash mark. For a short local flight, I would have
just left it there and flown. Since I was going to be flying 4+ hours back to
home, I decided to add some oil. After pouring some oil in, I noticed that
I had about a quarter of a quart of oil left in the container so I just poured
the rest in. Why I did that, I do not know, but it seemed safe to do. Its only
a quarter of a quart, right? Afterward, the level was still just inside the
upper hash mark, right?
>
> Well, after taking off and climbing out from Oshkosh, I noticed that my oil parameters
were not what I used to. Any day of the week, I usually see 50 PSI and
temperatures between 200-215 degrees F. When I initially leveled off at 1300
feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI and temperatures
of 215F and climbing. A few minutes later I was still at 35 PSI (and wavering)
with the temperature climbing through 230F. In front of me was increasing areas
of ground fog. The nearest airport to the south was reporting 2 miles of visibility
and 200 feet ceilings. I certainly was not going to do VFR over the top
with any doubt in my aircraft. I had just passed Fond Du Lac (FLD), which is
one of the Oshkosh reliever airports during Airventure and it was still in VFR
conditions. I radioed in that I was coming in for a precautionary landing and
they held everybody up for me (thanks guys!).
>
> On the ground I pulled the cowling and could find nothing wrong other than a
dip stick that was reading now a little over the full mark due to hot oil expansion.
After much pondering, the only thing I could think of was to de-service
the oil to a level more in tune with past practice. I pulled about a 1/3rd of
a quart out and got in line for takeoff.
>
> This time off, I was at a rock solid 50 PSI and around 205F almost all the way
home. Go figure.
>
> Your situation may certainly vary but I would say that the precaution of not
filling the Jabiru 3300 engine to the full oil mark holds true for me.
>
> --------
> David Gallagher
> 601 XL/Jabiru 3300
> First flight 7/24/08
> Upgraded 3/19/10
> 140+ hours and climbing!
>
>
Message 5
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
Just my two cents lol
My jab 3300 J0250 uses 1 oz/hr of 100W or 1.5oz.hr of 15-50W. It certainly
doesnt seem to make a difference in oil temp or pressure if my dipstick (old
style) says between the bottom mark and a bit over half. That difference is
12 oz which would certainly give me between 8-12 hrs flying time. So in
reality I cant see flying for more than 4 hours which would use only 4-6oz
of oil or 1/4 of the dip stick. Thus it never has been an issue in the past
267 hrs on the aircraft. BTW my oil catch bottle hardly has any oil in it,
maybe 3-4oz annually so the oil is not being spilled over.
Just FYI
Ivan
Phoenix, AZ
----- Original Message -----
From: "Mark Hubelbank" <mhubel@nemon.com>
Sent: Tuesday, August 03, 2010 9:20 AM
Subject: Re: JabiruEngine-List: Jabiru 3300 Thoughts On Oil Level
Perhaps it would be a good place to get a word from Peter at Jabiru on
the unusually narrow range Jabiru engines will accept for oil levels. To
me this borders on a safety issue as it is not possible to have any
reasonable amount of extra oil in the sump.
Could not the sump have been made slightly larger to provide space for
the normal 2+ quart range we see in other aircraft engines between
minimum and maximum oil levels?
I know that Jabiru engines have a very low normal oil consumption rate
but the significant word there is "normal". A slight increase in
consumption during a long flight could spoil your day.
On 8/3/2010 9:46 AM, Beckman, Rick wrote:
> --> JabiruEngine-List message posted by: "Beckman,
> Rick"<Rick.Beckman@atk.com>
>
> Thanks for the insight, Dave!
> Rick
>
> DO NOT ARCHIVE
>
>
> I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most
> of the week there. On my flight back to the Cincinnati area, I got bit by
> an oil level gremlin.
>
> With the Jabiru 3300 engine I have seen it mentioned in various forums
> that the engine likes to only be serviced to the lower half of the
> hash-marked area of the dipstick. I do not recall any precautions around
> this statement, but I saw no reason for not heeding the advice. I think
> there is more than one dip stick configuration, but my engine is a 2007
> model with the latest type of dip stick.
>
> Since my engine has consumed very little oil over the past two years, I do
> not have to put a lot of oil in and kept it no higher than half full on
> the hash mark. Checking the oil level prior to my Oshkosh departure, the
> level was just into the lower end of the hash mark. For a short local
> flight, I would have just left it there and flown. Since I was going to
> be flying 4+ hours back to home, I decided to add some oil. After pouring
> some oil in, I noticed that I had about a quarter of a quart of oil left
> in the container so I just poured the rest in. Why I did that, I do not
> know, but it seemed safe to do. Its only a quarter of a quart, right?
> Afterward, the level was still just inside the upper hash mark, right?
>
> Well, after taking off and climbing out from Oshkosh, I noticed that my
> oil parameters were not what I used to. Any day of the week, I usually see
> 50 PSI and temperatures between 200-215 degrees F. When I initially
> leveled off at 1300 feet as directed in the Oshkosh NOTAM, I was seeing 35
> PSI and temperatures of 215F and climbing. A few minutes later I was still
> at 35 PSI (and wavering) with the temperature climbing through 230F. In
> front of me was increasing areas of ground fog. The nearest airport to the
> south was reporting 2 miles of visibility and 200 feet ceilings. I
> certainly was not going to do VFR over the top with any doubt in my
> aircraft. I had just passed Fond Du Lac (FLD), which is one of the Oshkosh
> reliever airports during Airventure and it was still in VFR conditions. I
> radioed in that I was coming in for a precautionary landing and they held
> everybody up for me (thanks guys!).
>
> On the ground I pulled the cowling and could find nothing wrong other than
> a dip stick that was reading now a little over the full mark due to hot
> oil expansion. After much pondering, the only thing I could think of was
> to de-service the oil to a level more in tune with past practice. I pulled
> about a 1/3rd of a quart out and got in line for takeoff.
>
> This time off, I was at a rock solid 50 PSI and around 205F almost all the
> way home. Go figure.
>
> Your situation may certainly vary but I would say that the precaution of
> not filling the Jabiru 3300 engine to the full oil mark holds true for me.
>
> --------
> David Gallagher
> 601 XL/Jabiru 3300
> First flight 7/24/08
> Upgraded 3/19/10
> 140+ hours and climbing!
>
>
Message 6
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
I just can't see why this is. I flew 9.9 hours from my place to
Mitchell, SD, and didn't add any oil during that time. At Mitchell, I
added about 8 ounces of oil. I then flew non-stop for 4 hours to
oshkosh...actually Fond Du Lac (sp?), and added another 4 oz before
coming home. I'm still above the normal mark.
I started this trip with the oil above the normal mark, and I can't
see where there is any problem with this, either in oil consumption
or low power. I was, however, flying lean of peak which requires only
65-75% power, and I have an extra vent line attached to my fuel pump
block-off plate, and going into the catch can/puke jar. At Oshkosh, I
looked at the can and it showed 5 ounces of oil collected for those 14
+ hours of operation.
I just don't get it.....
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x46" Wood (summer)
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1030 hrs (since 3-27-2006)
On Aug 3, 2010, at 12:20 PM, Mark Hubelbank wrote:
> <mhubel@nemon.com>
>
> Perhaps it would be a good place to get a word from Peter at
> Jabiru on the unusually narrow range Jabiru engines will accept for
> oil levels. To me this borders on a safety issue as it is not
> possible to have any reasonable amount of extra oil in the sump.
>
> Could not the sump have been made slightly larger to provide space
> for the normal 2+ quart range we see in other aircraft engines
> between minimum and maximum oil levels?
>
> I know that Jabiru engines have a very low normal oil consumption
> rate but the significant word there is "normal". A slight increase
> in consumption during a long flight could spoil your day.
Message 7
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
Guys;
It might be a good idea to visit the Jabiru web site to see if
they have any comment on oil levels/consumption etc there are several dip
stick
lengths so that may be part of the problem you are seeing. They may have
better insight than Pete since they designed the engine.
Regards, John
CH701 - Colorado - Jabiru 3300
Cell: 719-494-4567
Home: 303-648-3261
In a message dated 8/3/2010 10:23:16 A.M. Mountain Daylight Time,
mhubel@nemon.com writes:
--> JabiruEngine-List message posted by: Mark Hubelbank <mhubel@nemon.co
m>
Perhaps it would be a good place to get a word from Peter at Jabiru on
the unusually narrow range Jabiru engines will accept for oil levels. To
me this borders on a safety issue as it is not possible to have any
reasonable amount of extra oil in the sump.
Could not the sump have been made slightly larger to provide space for
the normal 2+ quart range we see in other aircraft engines between
minimum and maximum oil levels?
I know that Jabiru engines have a very low normal oil consumption rate
but the significant word there is "normal". A slight increase in
consumption during a long flight could spoil your day.
On 8/3/2010 9:46 AM, Beckman, Rick wrote:
> --> JabiruEngine-List message posted by: "Beckman,
Rick"<Rick.Beckman@atk.com>
>
> Thanks for the insight, Dave!
> Rick
>
> DO NOT ARCHIVE
>
>
> I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent
most of the week there. On my flight back to the Cincinnati area, I got
bit
by an oil level gremlin.
>
> With the Jabiru 3300 engine I have seen it mentioned in various forums
that the engine likes to only be serviced to the lower half of the
hash-marked area of the dipstick. I do not recall any precautions around
this
statement, but I saw no reason for not heeding the advice. I think there
is
more than one dip stick configuration, but my engine is a 2007 model with
the
latest type of dip stick.
>
> Since my engine has consumed very little oil over the past two years,
I
do not have to put a lot of oil in and kept it no higher than half full
on
the hash mark. Checking the oil level prior to my Oshkosh departure, the
level was just into the lower end of the hash mark. For a short local
flight, I would have just left it there and flown. Since I was going to
be
flying 4+ hours back to home, I decided to add some oil. After pouring
some oil
in, I noticed that I had about a quarter of a quart of oil left in the
container so I just poured the rest in. Why I did that, I do not know,
but it
seemed safe to do. It=C3=A2=82=AC=84=A2s only a quarter of a quart,
right? Afterward,
the level was still just inside the upper hash mark, right?
>
> Well, after taking off and climbing out from Oshkosh, I noticed that my
oil parameters were not what I used to. Any day of the week, I usually se
e
50 PSI and temperatures between 200-215 degrees F. When I initially level
ed
off at 1300 feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI an
d
temperatures of 215F and climbing. A few minutes later I was still at 35
PSI (and wavering) with the temperature climbing through 230F. In front
of
me was increasing areas of ground fog. The nearest airport to the south
was
reporting 2 miles of visibility and 200 feet ceilings. I certainly was no
t
going to do VFR over the top with any doubt in my aircraft. I had just
passed Fond Du Lac (FLD), which is one of the Oshkosh reliever airports
during
Airventure and it was still in VFR conditions. I radioed in that I was
coming in for a precautionary landing and they held everybody up for me
(thanks
guys!).
>
> On the ground I pulled the cowling and could find nothing wrong other
than a dip stick that was reading now a little over the full mark due to
hot
oil expansion. After much pondering, the only thing I could think of was
to
de-service the oil to a level more in tune with past practice. I pulled
about a 1/3rd of a quart out and got in line for takeoff.
>
> This time off, I was at a rock solid 50 PSI and around 205F almost all
the way home. Go figure.
>
> Your situation may certainly vary but I would say that the precaution
of
not filling the Jabiru 3300 engine to the full oil mark holds true for me
.
>
> --------
> David Gallagher
> 601 XL/Jabiru 3300
> First flight 7/24/08
> Upgraded 3/19/10
> 140+ hours and climbing!
>
>
========================
===========
========================
===========
========================
===========
========================
===========
Message 8
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| Subject: | Jabiru 3300 Thoughts On Oil Level |
This is just my personal experience, but I flew to and from Oshkosh from Phoenix,
AZ in my 601HDS with a 3300A last year. All told about 27 hour round trip (great
trip by the way). Oil burn was effectively barely noticeable and I had no
problem with starting the flight with oil at the mid-level.
Also, most of us are flying in planes with a 3 hour max range so checking the oil
shouldn't be a major deal on long trips.
I've also noticed that oil temps are higher if you over-fill and I believe is standard
for the engine. In my experience though it generally quickly spits out
the stuff into the overflow bottle quick enough to get back into its "happy zone".
However, while I've seen higher temps in the 5/10 degree mark, nothing like
a 20 to 30 degree jump.
Don Honabach
601HDS (120 Hours)
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Mark Hubelbank
Sent: Tuesday, August 03, 2010 9:20 AM
Subject: Re: JabiruEngine-List: Jabiru 3300 Thoughts On Oil Level
Perhaps it would be a good place to get a word from Peter at Jabiru on
the unusually narrow range Jabiru engines will accept for oil levels. To
me this borders on a safety issue as it is not possible to have any
reasonable amount of extra oil in the sump.
Could not the sump have been made slightly larger to provide space for
the normal 2+ quart range we see in other aircraft engines between
minimum and maximum oil levels?
I know that Jabiru engines have a very low normal oil consumption rate
but the significant word there is "normal". A slight increase in
consumption during a long flight could spoil your day.
On 8/3/2010 9:46 AM, Beckman, Rick wrote:
> --> JabiruEngine-List message posted by: "Beckman, Rick"<Rick.Beckman@atk.com>
>
> Thanks for the insight, Dave!
> Rick
>
> DO NOT ARCHIVE
>
>
> I flew my Zenith 601XL/Jabiru 3300 airplane to Oshkosh 2010 and spent most of
the week there. On my flight back to the Cincinnati area, I got bit by an oil
level gremlin.
>
> With the Jabiru 3300 engine I have seen it mentioned in various forums that the
engine likes to only be serviced to the lower half of the hash-marked area
of the dipstick. I do not recall any precautions around this statement, but I
saw no reason for not heeding the advice. I think there is more than one dip
stick configuration, but my engine is a 2007 model with the latest type of dip
stick.
>
> Since my engine has consumed very little oil over the past two years, I do not
have to put a lot of oil in and kept it no higher than half full on the hash
mark. Checking the oil level prior to my Oshkosh departure, the level was just
into the lower end of the hash mark. For a short local flight, I would have
just left it there and flown. Since I was going to be flying 4+ hours back to
home, I decided to add some oil. After pouring some oil in, I noticed that
I had about a quarter of a quart of oil left in the container so I just poured
the rest in. Why I did that, I do not know, but it seemed safe to do. Its only
a quarter of a quart, right? Afterward, the level was still just inside the
upper hash mark, right?
>
> Well, after taking off and climbing out from Oshkosh, I noticed that my oil parameters
were not what I used to. Any day of the week, I usually see 50 PSI and
temperatures between 200-215 degrees F. When I initially leveled off at 1300
feet as directed in the Oshkosh NOTAM, I was seeing 35 PSI and temperatures
of 215F and climbing. A few minutes later I was still at 35 PSI (and wavering)
with the temperature climbing through 230F. In front of me was increasing areas
of ground fog. The nearest airport to the south was reporting 2 miles of visibility
and 200 feet ceilings. I certainly was not going to do VFR over the top
with any doubt in my aircraft. I had just passed Fond Du Lac (FLD), which is
one of the Oshkosh reliever airports during Airventure and it was still in VFR
conditions. I radioed in that I was coming in for a precautionary landing and
they held everybody up for me (thanks guys!).
>
> On the ground I pulled the cowling and could find nothing wrong other than a
dip stick that was reading now a little over the full mark due to hot oil expansion.
After much pondering, the only thing I could think of was to de-service
the oil to a level more in tune with past practice. I pulled about a 1/3rd of
a quart out and got in line for takeoff.
>
> This time off, I was at a rock solid 50 PSI and around 205F almost all the way
home. Go figure.
>
> Your situation may certainly vary but I would say that the precaution of not
filling the Jabiru 3300 engine to the full oil mark holds true for me.
>
> --------
> David Gallagher
> 601 XL/Jabiru 3300
> First flight 7/24/08
> Upgraded 3/19/10
> 140+ hours and climbing!
>
>
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| Subject: | Re: Jabiru 3300 Thoughts On Oil Level |
In a message dated 8/3/2010 2:56:40 P.M. Eastern Daylight Time,
don.honabach@pcperfect.com writes:
I've also noticed that oil temps are higher if you over-fill and I believe
is standard for the engine. In my experience though it generally quickly
spits out the stuff into the overflow bottle quick enough to get back into
its "happy zone". However, while I've seen higher temps in the 5/10 degree
mark, nothing like a 20 to 30 degree jump.
I would agree that overfilling a Jab is a problem. We have seen similar
issues inspired by "dump in the last of the bottle"
What people dont consider when they suggest a larger oil sump is that the
Jab will operate with very little oil in the sump...like half a quart or
less. I have put two full quarts in before on a 2200 with break-in
problems....and it had oil pressure and good temps. It was being flown back from
OshKosh by someone who didn't check the oil.
Now before everyone gets their panties in a bunch over the notion that Jabs
will run two quarts low....I am simply saying that you already have two
extra quarts in the sump when you fill it to the suggested mark. Of course
it is wise to check the oil and keep it to the mark. Of course it is a good
idea to track your oil consumption. But a larger oil sump is
unnecessary because the oil consumption is so low (after break-in).
The real lesson here is to NOT OVERFILL.
Doug Koenigsberg
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