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1. 11:51 AM - Re: JabiruEngine-List Digest: 2 Msgs - 09/13/11 (Norman Cowell)
2. 12:13 PM - Re: Re: JabiruEngine-List Digest: 2 Msgs - 09/13/11 (BobsV35B@aol.com)
Message 1
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| Subject: | Re: JabiruEngine-List Digest: 2 Msgs - 09/13/11 |
Norman passed away in August could you please take him of your mailing list.
Thank you
P.Cowell
----- Original Message -----
From: "JabiruEngine-List Digest Server" <jabiruengine-list@matronics.com>
Sent: Wednesday, September 14, 2011 8:00 AM
Subject: JabiruEngine-List Digest: 2 Msgs - 09/13/11
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete JabiruEngine-List Digest can also be found in either of
> the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the JabiruEngine-List Digest and can be viewed with a generic text
> editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 11-09-13&Archive=JabiruEngine
>
> Text Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 11-09-13&Archive=JabiruEngine
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> JabiruEngine-List Digest Archive
> ---
> Total Messages Posted Tue 09/13/11: 2
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 07:15 AM - Re: JabiruEngine-List Digest: 8 Msgs - 09/12/11
> (BobbyPaulk@comcast.net)
> 2. 10:34 AM - Re: JabiruEngine-List Digest: 8 Msgs - 09/12/11 (Norman
> Cowell)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 07:15:52 AM PST US
> From: BobbyPaulk@comcast.net
> Subject: JabiruEngine-List: Re: JabiruEngine-List Digest: 8 Msgs -
> 09/12/11
>
>
> List,
> Thanks to all that responded to my Compression concerns.
> I will run the engine and do it again hot. I did however pump the prop
> blade near
> TDC to help seat the rings which only added about one pound if that. Since
> it passed cold I have no problem flying it but I will do it again hot to
> see the
> results. I will post the results.
> Thanks again
>
> bobby
> 601 XL
> Jab 3300
> 125 hrs
>
> DO NOT ARCHIVE
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 10:34:15 AM PST US
> From: "Norman Cowell" <norman.cowell@tiscali.co.uk>
> Subject: JabiruEngine-List: Re: JabiruEngine-List Digest: 8 Msgs -
> 09/12/11
>
>
> just to let you know Norman passed away 3.08.11. Would be much obliged if
> you would cancell these messages.
>
> Thank you
> Mrs. P. Cowell
> ----- Original Message -----
> From: "JabiruEngine-List Digest Server" <jabiruengine-list@matronics.com>
> Sent: Tuesday, September 13, 2011 7:59 AM
> Subject: JabiruEngine-List Digest: 8 Msgs - 09/12/11
>
>
>> *
>>
>> ================================================
>> Online Versions of Today's List Digest Archive
>> ================================================
>>
>> Today's complete JabiruEngine-List Digest can also be found in either of
>> the
>> two Web Links listed below. The .html file includes the Digest formatted
>> in HTML for viewing with a web browser and features Hyperlinked Indexes
>> and Message Navigation. The .txt file includes the plain ASCII version
>> of the JabiruEngine-List Digest and can be viewed with a generic text
>> editor
>> such as Notepad or with a web browser.
>>
>> HTML Version:
>>
>>
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter
>> 11-09-12&Archive=JabiruEngine
>>
>> Text Version:
>>
>>
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter
>> 11-09-12&Archive=JabiruEngine
>>
>>
>> ==============================================
>> EMail Version of Today's List Digest Archive
>> ==============================================
>>
>>
>> ----------------------------------------------------------
>> JabiruEngine-List Digest Archive
>> ---
>> Total Messages Posted Mon 09/12/11: 8
>> ----------------------------------------------------------
>>
>>
>> Today's Message Index:
>> ----------------------
>>
>> 1. 07:36 AM - Compression (BobbyPaulk@comcast.net)
>> 2. 07:49 AM - Re: Compression (Martin Hone)
>> 3. 08:33 AM - Re: Compression (Garth Knowles)
>> 4. 10:14 AM - Re: Compression (FLYaDIVE)
>> 5. 11:12 AM - Re: Compression (Pete Krotje)
>> 6. 02:08 PM - Re: Compression (Gary Aman)
>> 7. 03:15 PM - Re: Compression (BobsV35B@aol.com)
>> 8. 03:22 PM - Re: Compression (BobsV35B@aol.com)
>>
>>
>> ________________________________ Message 1
>> _____________________________________
>>
>>
>> Time: 07:36:23 AM PST US
>> From: BobbyPaulk@comcast.net
>> Subject: JabiruEngine-List: Compression
>>
>>
>> List,
>> I just finished a differential compression check of my 3300 for it's
>> Conditional
>> Inspection.
>> It has 125 hrs and has been broken in correctly and oil changed
>> regularly.
>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down from
>> the mid
>> 70's. #3 was below 70 at last conditional but now I have two more
>> following
>> suit. The #3 & 4 are not the hottest cylinders but #5 is second hottest.
>> Engine
>> was cold for 2 days at time of check. At this rate I don't know if it
>> will
>> make Top OH.
>> The compression is being lost through the rings as it can be heard thru
>> the oil
>> dipstick tube. Has anyone had a similar problem and is there any thing I
>> can
>> do about it. I am going to add Marvel Mystery to the fuel but I think
>> that
>> would
>> be just a band aid on a more serious problem. How low should the
>> compression
>> get before I get alarmed??
>>
>> Bobby Paulk
>> 601 XL N131BP
>> Jabiru 3300 S/N 1141
>>
>>
>> ________________________________ Message 2
>> _____________________________________
>>
>>
>> Time: 07:49:02 AM PST US
>> Subject: Re: JabiruEngine-List: Compression
>> From: Martin Hone <aerobiz1@gmail.com>
>>
>> Hi Bobby,
>>
>> This sounds all too familiar. From memory, my Jab manual says that you
>> need
>> to pull the cylinders if the reading is 60/80 or less, but I would
>> strongly
>> suggest doing the test again but on a warm engine before getting too
>> excited.
>>
>> Cheers
>>
>> Martin
>>
>> On Tue, Sep 13, 2011 at 12:31 AM, <BobbyPaulk@comcast.net> wrote:
>>
>>>
>>>
>>> List,
>>> I just finished a differential compression check of my 3300 for it's
>>> Conditional Inspection.
>>> It has 125 hrs and has been broken in correctly and oil changed
>>> regularly.
>>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down
>>> from
>>> the mid 70's. #3 was below 70 at last conditional but now I have two
>>> more
>>> following suit. The #3 & 4 are not the hottest cylinders but #5 is
>>> second
>>> hottest. Engine was cold for 2 days at time of check. At this rate I
>>> don't
>>> know if it will make Top OH.
>>> The compression is being lost through the rings as it can be heard thru
>>> the oil dipstick tube. Has anyone had a similar problem and is there any
>>> thing I can do about it. I am going to add Marvel Mystery to the fuel
>>> but
>>> I
>>> think that would be just a band aid on a more serious problem. How low
>>> should the compression get before I get alarmed??
>>>
>>> Bobby Paulk
>>> 601 XL N131BP
>>> Jabiru 3300 S/N 1141
>>>
>>>
>>> *
>>>
>>> *
>>>
>>>
>>
>> ________________________________ Message 3
>> _____________________________________
>>
>>
>> Time: 08:33:34 AM PST US
>> From: Garth Knowles <garthknowles@yahoo.com>
>> Subject: Re: JabiruEngine-List: Compression
>>
>>>From my experience, when doing both leakdown and compression checks,
>>>engine
>> temperature can make a significant difference.- Jabiru says "warm to hot
>> " for a leakdown test where the max 25% drop would apply.- You may not ha
>> ve an issue at all.=0A=0A=0AGarth=0A=0AFrom: "BobbyPaulk@comcast.net"
>> <Bobb
>> yPaulk@comcast.net>=0A>To:
>> jabiruengine-list-digest@matronics.com=0A>Sent:
>> Monday, September 12, 2011 10:31:19 AM=0A>Subject: JabiruEngine-List:
>> Compr
>> ession=0A>=0A>=0A>=0A>=0A>List,=0A>I just finished a differential
>> compressi
>> on check of my 3300 for it's Conditional Inspection.=0A>It has 125 hrs
>> and
>> has been broken in correctly and oil changed regularly. =0A>3 cylinders
>> hav
>> e dropped to the low 60's over 80. #3, 4 & 5 are down from the mid 70's.
>> #3
>> was below 70 at last conditional but now I have two more following suit.
>> T
>> he #3 & 4- are not the hottest cylinders but #5 is second hottest. Engine
>> was cold for 2 days at time of check. At this rate I don't know if it
>> will
>> make Top OH.=0A>The compression is being- lost through the rings as it c
>> an be heard thru the oil dipstick tube. Has anyone had a similar problem
>> an
>> d is there any thing I can do about it. I am going to add Marvel Mystery
>> to
>> the fuel but I think that would be just a band aid on a more serious
>> probl
>> em. How low should the compression get before I get
>> alarmed??=0A>=0A>Bobby
>> ============== =0A>=0A>
>>
>> ________________________________ Message 4
>> _____________________________________
>>
>>
>> Time: 10:14:30 AM PST US
>> Subject: Re: JabiruEngine-List: Compression
>> From: FLYaDIVE <flyadive@gmail.com>
>>
>> Bobby:
>>
>> MMO - Not to the fuel, but in to the CYLINDER. Remove the plug, squirt
>> MMO
>> all over the inside of the cylinder (about 1 oz per cylinder) and let it
>> sit
>> over night. If luck is on your side you may just free up some sticky
>> rings.
>> If you want to add some MMO to the oil - - - ONE HOUR BEFORE AN OIL
>> CHANGE.
>> DO NOT RUN WITH MMO MORE THAN THAT.
>> You will see a cleaning of all internal parts.
>> MMO in the fuel is pretty much wasted. The ratio of fuel is so high and
>> the
>> flow rate so fast that it really does nothing. Been there - Done that.
>>
>> Barry
>>
>>
>> On Mon, Sep 12, 2011 at 10:31 AM, <BobbyPaulk@comcast.net> wrote:
>>
>>>
>>>
>>> List,
>>> I just finished a differential compression check of my 3300 for it's
>>> Conditional Inspection.
>>> It has 125 hrs and has been broken in correctly and oil changed
>>> regularly.
>>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down
>>> from
>>> the mid 70's. #3 was below 70 at last conditional but now I have two
>>> more
>>> following suit. The #3 & 4 are not the hottest cylinders but #5 is
>>> second
>>> hottest. Engine was cold for 2 days at time of check. At this rate I
>>> don't
>>> know if it will make Top OH.
>>> The compression is being lost through the rings as it can be heard thru
>>> the oil dipstick tube. Has anyone had a similar problem and is there any
>>> thing I can do about it. I am going to add Marvel Mystery to the fuel
>>> but
>>> I
>>> think that would be just a band aid on a more serious problem. How low
>>> should the compression get before I get alarmed??
>>>
>>> Bobby Paulk
>>> 601 XL N131BP
>>> Jabiru 3300 S/N 1141
>>>
>>>
>>> *
>>>
>>> *
>>>
>>>
>>
>> ________________________________ Message 5
>> _____________________________________
>>
>>
>> Time: 11:12:01 AM PST US
>> From: "Pete Krotje" <pete@usjabiru.com>
>> Subject: RE: JabiruEngine-List: Compression
>>
>> Bobby,
>>
>>
>> Before you start adding mysterious additives please do what the manual
>> says
>> and warm up your engine thoroughly before the compression check. The
>> engine
>> should be as hot as practical to work with. We can take any engine cold
>> and
>> get very inconsistent compression results!
>>
>>
>> Pete Krotje
>>
>> Jabiru USA Sport Aircraft, LLC
>>
>> 931-680-2800
>>
>> www.usjabiru.com
>>
>>
>> From: owner-jabiruengine-list-server@matronics.com
>> [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
>> FLYaDIVE
>> Sent: Monday, September 12, 2011 12:12 PM
>> Subject: Re: JabiruEngine-List: Compression
>>
>>
>> Bobby:
>>
>>
>> MMO - Not to the fuel, but in to the CYLINDER. Remove the plug, squirt
>> MMO
>> all over the inside of the cylinder (about 1 oz per cylinder) and let it
>> sit
>> over night. If luck is on your side you may just free up some sticky
>> rings.
>>
>> If you want to add some MMO to the oil - - - ONE HOUR BEFORE AN OIL
>> CHANGE.
>> DO NOT RUN WITH MMO MORE THAN THAT.
>>
>> You will see a cleaning of all internal parts.
>>
>> MMO in the fuel is pretty much wasted. The ratio of fuel is so high and
>> the
>> flow rate so fast that it really does nothing. Been there - Done that.
>>
>>
>> Barry
>>
>>
>> On Mon, Sep 12, 2011 at 10:31 AM, <BobbyPaulk@comcast.net> wrote:
>>
>>
>> List,
>> I just finished a differential compression check of my 3300 for it's
>> Conditional Inspection.
>> It has 125 hrs and has been broken in correctly and oil changed
>> regularly.
>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down from
>> the mid 70's. #3 was below 70 at last conditional but now I have two more
>> following suit. The #3 & 4 are not the hottest cylinders but #5 is
>> second
>> hottest. Engine was cold for 2 days at time of check. At this rate I
>> don't
>> know if it will make Top OH.
>> The compression is being lost through the rings as it can be heard thru
>> the
>> oil dipstick tube. Has anyone had a similar problem and is there any
>> thing
>> I
>> can do about it. I am going to add Marvel Mystery to the fuel but I think
>> that would be just a band aid on a more serious problem. How low should
>> the
>> compression get before I get alarmed??
>>
>> Bobby Paulk
>> 601 XL N131BP
>> Jabiru 3300 S/N 1141
>>
>>
>> ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
>>
>>
>> ________________________________ Message 6
>> _____________________________________
>>
>>
>> Time: 02:08:01 PM PST US
>> Subject: Re: JabiruEngine-List: Compression
>> From: Gary Aman <zeprep251@aol.com>
>>
>> Bobby,
>> Sometimes you can get the pressures up by slowly taking the piston over
>> top
>> center a few degrees and then bringing it back up to tdc WHILE HOLDING
>> THE
>> PROP FIRMLY THROUGH THIS MOTION!! It made a big difference on my
>> Continent
>> al O200;s and IO470's
>> G.Aman
>>
>>
>> -----Original Message-----
>> From: BobbyPaulk <BobbyPaulk@comcast.net>
>> Sent: Mon, Sep 12, 2011 11:11 am
>> Subject: JabiruEngine-List: Compression
>>
>>
>> List,
>> I just finished a differential compression check of my 3300 for it's
>> Condit
>> ional Inspection.
>> It has 125 hrs and has been broken in correctly and oil changed
>> regularly.
>>
>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down from
>> t
>> he mid 70's. #3 was below 70 at last conditional but now I have two more
>> fo
>> llowing suit. The #3 & 4 are not the hottest cylinders but #5 is second
>> ho
>> ttest. Engine was cold for 2 days at time of check. At this rate I don't
>> kn
>> ow if it will make Top OH.
>> The compression is being lost through the rings as it can be heard thru
>> th
>> e oil dipstick tube. Has anyone had a similar problem and is there any
>> thin
>> g I can do about it. I am going to add Marvel Mystery to the fuel but I
>> thi
>> nk that would be just a band aid on a more serious problem. How low
>> should
>> the compression get before I get alarmed??
>>
>> Bobby Paulk
>> 601 XL N131BP
>> Jabiru 3300 S/N 1141
>>
>>
>> ________________________________ Message 7
>> _____________________________________
>>
>>
>> Time: 03:15:31 PM PST US
>> From: BobsV35B@aol.com
>> Subject: Re: JabiruEngine-List: Compression
>>
>> Good Afternoon Bobby,
>>
>> The Comparative Compression Check has been proven to have many faults. So
>> many such that Continental Motors now recommends that when the
>> Compression
>> gets below the ancient 75 percent rule, further investigation be used
>> before
>> a cylinder is pulled.
>>
>> They specify that the valves be looked at via a Borescope. If the
>> coloring
>> is equal all the way around. The valves are not being "burned" and can
>> remain in service.
>>
>> In your case where you feel there is a ring problem, They recommend that
>> oil consumption be monitored. As long as such consumption is normal
>> (Whatever that is?) the engine is OK.
>>
>> CMC recommends that no cylinder be removed on strictly a low compression
>> number.
>>
>> See Continental Service Bulletin SB03-3.
>>
>> My take is that the same principles will apply to the Jabiru.
>>
>> Happy Skies,
>>
>> Old Bob
>> Stearman N3977A
>> Downers Grove, IL
>> LL22
>>
>>
>> In a message dated 9/12/2011 4:08:23 P.M. Central Daylight Time,
>> zeprep251@aol.com writes:
>>
>> Bobby,
>> Sometimes you can get the pressures up by slowly taking the piston over
>> top center a few degrees and then bringing it back up to tdc WHILE
>> HOLDING
>> THE PROP FIRMLY THROUGH THIS MOTION!! It made a big difference on my
>> Continental O200;s and IO470's
>> G.Aman
>>
>>
>> -----Original Message-----
>> From: BobbyPaulk <BobbyPaulk@comcast.net>
>> Sent: Mon, Sep 12, 2011 11:11 am
>> Subject: JabiruEngine-List: Compression
>>
>>
>> List,
>> I just finished a differential compression check of my 3300 for it's
>> Conditional Inspection.
>> It has 125 hrs and has been broken in correctly and oil changed
>> regularly.
>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down
>> from
>> the mid 70's. #3 was below 70 at last conditional but now I have two
>> more
>> following suit. The #3 & 4 are not the hottest cylinders but #5 is
>> second
>> hottest. Engine was cold for 2 days at time of check. At this rate I
>> don't
>> know if it will make Top OH.
>> The compression is being lost through the rings as it can be heard thru
>> the oil dipstick tube. Has anyone had a similar problem and is there any
>> thing I can do about it. I am going to add Marvel Mystery to the fuel
>> but
>> I
>> think that would be just a band aid on a more serious problem. How low
>> should
>>
>> the compression get before I get alarmed??
>>
>> Bobby Paulk
>> 601 XL N131BP
>> Jabiru 3300 S/N 1141
>>
>>
>> ________________________________ Message 8
>> _____________________________________
>>
>>
>> Time: 03:22:59 PM PST US
>> From: BobsV35B@aol.com
>> Subject: Re: JabiruEngine-List: Compression
>>
>> HMMM---
>>
>> One more thing Bobby,
>>
>> I should have mentioned that the Borescope inspection should include
>> looking at the cylinder wall to check for scratches which may indicate a
>> broken
>>
>> ring.
>>
>> Happy Skies.
>>
>> Old Bob
>> AKA
>> Bob Siegfried
>> Ancient Aviator
>>
>>
>> In a message dated 9/12/2011 5:15:55 P.M. Central Daylight Time,
>> BobsV35B@aol.com writes:
>>
>> Good Afternoon Bobby,
>>
>> The Comparative Compression Check has been proven to have many faults. So
>> many such that Continental Motors now recommends that when the
>> Compression
>> gets below the ancient 75 percent rule, further investigation be used
>> before
>> a cylinder is pulled.
>>
>> They specify that the valves be looked at via a Borescope. If the
>> coloring
>> is equal all the way around. The valves are not being "burned" and can
>> remain in service.
>>
>> In your case where you feel there is a ring problem, They recommend that
>> oil consumption be monitored. As long as such consumption is normal
>> (Whatever that is?) the engine is OK.
>>
>> CMC recommends that no cylinder be removed on strictly a low compression
>> number.
>>
>> See Continental Service Bulletin SB03-3.
>>
>> My take is that the same principles will apply to the Jabiru.
>>
>> Happy Skies,
>>
>> Old Bob
>> Stearman N3977A
>> Downers Grove, IL
>> LL22
>>
>>
>> In a message dated 9/12/2011 4:08:23 P.M. Central Daylight Time,
>> zeprep251@aol.com writes:
>>
>> Bobby,
>> Sometimes you can get the pressures up by slowly taking the piston over
>> top center a few degrees and then bringing it back up to tdc WHILE
>> HOLDING
>> THE PROP FIRMLY THROUGH THIS MOTION!! It made a big difference on my
>> Continental O200;s and IO470's
>> G.Aman
>>
>>
>> -----Original Message-----
>> From: BobbyPaulk <BobbyPaulk@comcast.net>
>> Sent: Mon, Sep 12, 2011 11:11 am
>> Subject: JabiruEngine-List: Compression
>>
>>
>> List,
>> I just finished a differential compression check of my 3300 for it's
>> Conditional Inspection.
>> It has 125 hrs and has been broken in correctly and oil changed
>> regularly.
>> 3 cylinders have dropped to the low 60's over 80. #3, 4 & 5 are down
>> from
>> the mid 70's. #3 was below 70 at last conditional but now I have two
>> more
>> following suit. The #3 & 4 are not the hottest cylinders but #5 is
>> second
>> hottest. Engine was cold for 2 days at time of check. At this rate I
>> don't
>> know if it will make Top OH.
>> The compression is being lost through the rings as it can be heard thru
>> the oil dipstick tube. Has anyone had a similar problem and is there any
>> thing I can do about it. I am going to add Marvel Mystery to the fuel
>> but
>> I
>> think that would be just a band aid on a more serious problem. How low
>> should
>>
>> the compression get before I get alarmed??
>>
>> Bobby Paulk
>> 601 XL N131BP
>> Jabiru 3300 S/N 1141
>>
>>
>>
>
>
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| Subject: | Re: JabiruEngine-List Digest: 2 Msgs - 09/13/11 |
Good Afternoon P. Cowell,
Very Sorry to hear of your loss.
If the list administrator happens to see your message. I am sure he will
take Norman off the list, but it might be faster if you just contact the list
directly and follow the directions for removal.
Try: _http://forums.matronics.com_ (http://forums.matronics.com)
The data you need should be available there.
Once again, my personal condolences.
Happy Skies,
Old Bob
Do Not Archive
In a message dated 9/14/2011 1:51:11 P.M. Central Daylight Time,
norman.cowell@tiscali.co.uk writes:
http://forums.matronics.com
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