---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Wed 02/18/09: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:32 AM - Re: Coil Cooling Tubes (jetboy) 2. 01:46 AM - Re: Coil Cooling Tubes (ianwilson2) 3. 07:33 AM - Re: Re: Coil Cooling Tubes (steve) 4. 08:40 AM - Re: Re: Coil Cooling Tubes (Don Honabach) 5. 01:21 PM - cooling the ignition coils (Alvie Johnson) 6. 01:38 PM - Re: cooling the ignition coils (N1BZRich@aol.com) 7. 02:17 PM - Re: cooling the ignition coils (James, Clive R) 8. 06:25 PM - Re: Coil Cooling Tubes (Chuck Deiterich) ________________________________ Message 1 _____________________________________ Time: 12:32:27 AM PST US Subject: JabiruEngine-List: Re: Coil Cooling Tubes From: "jetboy" The cooling tube mod came out after there was a high coil failure rate. This was the different make of coils that are never used now. I ran an infrared temperature check on my coils after flight, only the left side behind cyl 4 was a little warm. seing that its directly behind the duct just drilled a bleed hole in the duct for it. Ralph -------- Ralph - CH701 / 2200a Read this topic online here: http://forums.matronics.com/viewtopic.php?p=230804#230804 ________________________________ Message 2 _____________________________________ Time: 01:46:58 AM PST US Subject: JabiruEngine-List: Re: Coil Cooling Tubes From: "ianwilson2" Thanks Buz, Rick, Lynn and Ralph for your experience. That's the great thing about forums like this. I think that I'll have a check on the critters after I'm flying and monitor how cool, or not, they are and take it from there. Should be an easy mod to do retrospectively. I could spend the rest of my life modifying this and that but never end up flying the thing! Thanks again. Ian Read this topic online here: http://forums.matronics.com/viewtopic.php?p=230805#230805 ________________________________ Message 3 _____________________________________ Time: 07:33:22 AM PST US From: "steve" Subject: Re: JabiruEngine-List: Re: Coil Cooling Tubes Homebuilt aircraft are never "done". There will always be something to fix or improve. Thats the game we play... SW ----- Original Message ----- From: "ianwilson2" Sent: Wednesday, February 18, 2009 2:45 AM Subject: JabiruEngine-List: Re: Coil Cooling Tubes > > > Thanks Buz, Rick, Lynn and Ralph for your experience. That's the great > thing about forums like this. I think that I'll have a check on the > critters after I'm flying and monitor how cool, or not, they are and take > it from there. Should be an easy mod to do retrospectively. > > I could spend the rest of my life modifying this and that but never end up > flying the thing! > > Thanks again. > > Ian > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=230805#230805 > > > ________________________________ Message 4 _____________________________________ Time: 08:40:07 AM PST US Subject: RE: JabiruEngine-List: Re: Coil Cooling Tubes From: "Don Honabach" And once you truly do stop finding stuff to fix/improve then it is time for a new plane :) Don do not archive -----Original Message----- From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of steve Sent: Wednesday, February 18, 2009 08:32 Subject: Re: JabiruEngine-List: Re: Coil Cooling Tubes Homebuilt aircraft are never "done". There will always be something to fix or improve. Thats the game we play... SW ----- Original Message ----- From: "ianwilson2" Sent: Wednesday, February 18, 2009 2:45 AM Subject: JabiruEngine-List: Re: Coil Cooling Tubes > > > Thanks Buz, Rick, Lynn and Ralph for your experience. That's the great > thing about forums like this. I think that I'll have a check on the > critters after I'm flying and monitor how cool, or not, they are and take > it from there. Should be an easy mod to do retrospectively. > > I could spend the rest of my life modifying this and that but never end up > flying the thing! > > Thanks again. > > Ian > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=230805#230805 > > > ________________________________ Message 5 _____________________________________ Time: 01:21:41 PM PST US From: Alvie Johnson Subject: JabiruEngine-List: cooling the ignition coils Hi All-- While perusing the recent correspondence about cooling the ignition coils with blast tubes, another facet of cooling the coils came to mind. I recall reading some time ago somewhere about Jabiru recommending using fiberglass washers on the cooling coils to isolate them from engine block heat. Now I can't find anything about that on the factory website (or anywhere else, for that matter). I also have a question about where the washers would be installed. On the outside of the coil under the bolt head wouldn't seem to be nearly as effective as between the coil and the engine; yet that raises the question of offsetting the alignment of the coils with the magnets on the periphery of the flywheel. Thoughts, anyone? Alvie Sonex #102 Jab. 3300A Ser.No. 174 ________________________________ Message 6 _____________________________________ Time: 01:38:22 PM PST US From: N1BZRich@aol.com Subject: Re: JabiruEngine-List: cooling the ignition coils In a message dated 2/18/2009 4:22:17 P.M. Eastern Standard Time, alvie102@yahoo.com writes: between the coil and the engine Alvie, Between the coil and the engine is how my engine came and what I have continued to use for the past 500 + hours. The alignment of the coil is not a problem, but of course the gap between the coil and the magnet is critical, especially for cold weather starting. Blue Skies, Buz Rich **************Need a job? Find an employment agency near you. (http://yellowpages.aol.com/search?query=employment_agencies&ncid=emlcntusyelp00000003) ________________________________ Message 7 _____________________________________ Time: 02:17:04 PM PST US Subject: RE: JabiruEngine-List: cooling the ignition coils From: "James, Clive R" The fibre washers are indeed fitted between the coil and the engine. There maybe washers under the head as well, I can't recall? My 2200 doesn't have them where as my 3300 does, it's all about when the engine was built. It's a good point about the alignment and although I thought about it I haven't ever examined the difference. the washers are quite thick. Maybe the engines with the washers fitted have a little metal removed from the mount area so the alignment is still good. I haven't retrofitted washers to my 2200 engine even though I heard about it. On that I did lose a coil at 700 hours though the other of the pair has now done 1060 hrs, neither engine has blast tubes (yet). Maybe some one can have a look at an engine with washers? Be simple enough to gain some clearance. Regards, Clive ________________________________ From: owner-jabiruengine-list-server@matronics.com [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Alvie Johnson Sent: 18 February 2009 21:21 Subject: JabiruEngine-List: cooling the ignition coils Hi All-- While perusing the recent correspondence about cooling the ignition coils with blast tubes, another facet of cooling the coils came to mind. I recall reading some time ago somewhere about Jabiru recommending using fiberglass washers on the cooling coils to isolate them from engine block heat. Now I can't find anything about that on the factory website (or anywhere else, for that matter). I also have a question about where the washers would be installed. On the outside of the coil under the bolt head wouldn't seem to be nearly as effective as between the coil and the engine; yet that raises the question of offsetting the alignment of the coils with the magnets on the periphery of the flywheel. Thoughts, anyone? Alvie Sonex #102 Jab. 3300A Ser.No. 174 ________________________________ Message 8 _____________________________________ Time: 06:25:09 PM PST US From: "Chuck Deiterich" Subject: Re: JabiruEngine-List: Coil Cooling Tubes Ian, Look at http://www.geocities.com/cffd66/Airplane/BlastTube.html to see how I used 1/2" CPVC. The one on the left coil is cut at a 45 degree towards the front to allow the air to expand forward and cool the coil that is slightly forward of the tube. I used JB Weld to cement the tubes in place. Chuck D. N701TX > > Time: 01:27:55 AM PST US > Subject: JabiruEngine-List: Coil Cooling Tubes > From: "ianwilson2" > > > In my 2200A installation manual it says to fabricate some cooling tubes > for the > ignition coils on the ram air ducts. As my plane hasn't flown yet, can > anyone > with running experience tell me whether I need to do this or not? It > looks > to me that the holes already in the ducts are aligned fairly well with the > coils, > so they will get a fair amount of cool air. > > Many thanks in advance. > > Ian Wilson ------------------------------------------------------------------------------------- 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.