---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Wed 09/14/11: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 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 _____________________________________ Time: 11:51:03 AM PST US From: "Norman Cowell" Subject: JabiruEngine-List: 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" 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" > 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" > 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 >> >> 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, 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 >> 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" >> > 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 >> >> 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, 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" >> 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, 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 >> >> 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 >> 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 >> 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 >> 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 >> >> >> > > > -- > We are a community of 7 million users fighting spam. > > The Professional version does not have this message > > > -- We are a community of 7 million users fighting spam. The Professional version does not have this message ________________________________ Message 2 _____________________________________ Time: 12:13:02 PM PST US From: BobsV35B@aol.com Subject: Re: JabiruEngine-List: 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.