---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Tue 02/17/09: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:27 AM - Coil Cooling Tubes (ianwilson2) 2. 07:29 AM - Re: Coil Cooling Tubes (N1BZRich@AOL.COM) 3. 07:37 AM - Coil Cooling Tubes (Beckman, Rick) 4. 07:58 AM - Re: Coil Cooling Tubes (N1BZRich@AOL.COM) 5. 08:02 AM - Coil Cooling Tubes (Beckman, Rick) 6. 08:48 AM - Re: Oil in exhaust & Exhaust Pipe Capscrews (Chuck Deiterich) 7. 10:30 AM - Re: Coil Cooling Tubes (Lynn Matteson) ________________________________ Message 1 _____________________________________ 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 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=230622#230622 ________________________________ Message 2 _____________________________________ Time: 07:29:38 AM PST US From: N1BZRich@AOL.COM Subject: Re: JabiruEngine-List: Coil Cooling Tubes Ian, My experience based on two Jab 3300 installations is that the cooling tubes are worth the effort. My aircraft (a highly modified Esqual) has about 530 hours in just over 3 years. It has had no ignition coil issues - it has had the blast cooling tubes from day one. On the aircraft that our EAA chapter built (a 601XL) that has about 200 hours in just under 2 years; it had a coil failure about 10 hours ago. It now has the two blast cooling tubes. My guess is that the existing holes in the ducts are adequate for cooling the starter but not sufficient for long life of the coils. Blue Skies, Buz Rich Williamsburg, VA **************Need a job? Find an employment agency near you. (http://yellowpages.aol.com/search?query=employment_agencies&ncid=emlcntusyelp00000003) ________________________________ Message 3 _____________________________________ Time: 07:37:57 AM PST US Subject: JabiruEngine-List: Coil Cooling Tubes From: "Beckman, Rick" Now, here's a question for you, Ian... in adding the coil cooling tubes, do you think you have robbed the starter of its cooling blast of air? Don't you have to use the same holes for the coil coolers as the ones that supply the air for the starter? Just curious... I am running a Jab 3300 also. Rick Ian, My experience based on two Jab 3300 installations is that the cooling tubes are worth the effort. My aircraft (a highly modified Esqual) has about 530 hours in just over 3 years. It has had no ignition coil issues - it has had the blast cooling tubes from day one. On the aircraft that our EAA chapter built (a 601XL) that has about 200 hours in just under 2 years; it had a coil failure about 10 hours ago. It now has the two blast cooling tubes. My guess is that the existing holes in the ducts are adequate for cooling the starter but not sufficient for long life of the coils. Blue Skies, Buz Rich Williamsburg, VA ________________________________ Message 4 _____________________________________ Time: 07:58:56 AM PST US From: N1BZRich@AOL.COM Subject: Re: JabiruEngine-List: Coil Cooling Tubes In a message dated 2/17/2009 10:38:20 A.M. Eastern Standard Time, Rick.Beckman@atk.com writes: Don't you have to use the same holes for the coil coolers as the ones that supply the air for the starter? Rick, I did not use the same holes. I fabricated "blast tubes" from small pvc pipe that blow directly on each coil. The left coil "blast tube" comes from the back end of the left duct, has a 90 degree elbow and then blows directly on the left coil. The right "blast tube" comes out of the right duct just aft of the back cylinder, has a 45 degree fitting and then an extension that takes it to the right coil. The end of this "blast tube" that is inside the duct is cut at 45 degrees to pick up blast air from the aft end of the duct. Hope this helps, Blue Skies, Buz Rich **************Need a job? Find an employment agency near you. (http://yellowpages.aol.com/search?query=employment_agencies&ncid=emlcntusyelp00000003) ________________________________ Message 5 _____________________________________ Time: 08:02:43 AM PST US Subject: JabiruEngine-List: Coil Cooling Tubes From: "Beckman, Rick" It does help. Thanks! Do not archive ________________________________ Message 6 _____________________________________ Time: 08:48:34 AM PST US From: "Chuck Deiterich" Subject: JabiruEngine-List: Re: Oil in exhaust & Exhaust Pipe Capscrews Larry, I would not use any locktite on these screws. They have a star lock washer on them. In fact, I use antiseize on mine. I check mine every oil change. If you ever need to remove them, chances are the bolt will have seized to the aluminum and will break off. You need to be very careful of screws in aluminum especially hot locations like the exhaust pipes to aluminum heads. Same antiseize compound as the spark plugs. My opinion. Chuck D. > Subject: Re: JabiruEngine-List: Oil in exhaust & Exhaust Pipe Capscrews > From: Richard Girard > > Larry, It's my experience that 262 Locktite (red, permanent) just gets > undone by the heat in the exhaust pipe area, 242 (blue, service removable) > seems a bit better. For what it's worth. > Rick > > On Sun, Feb 15, 2009 at 7:17 PM, lwhitlow wrote: > >> > >> >> Ok So I got the EGT probes installed. >> >> I took off the cap screws holding the pipes on Drilled the hole for the >> EGT and re-installed the pipe. The question is should I use Loctite on >> the >> the cap screws when I put them back in? >> >> On another note when I took of the number one pipe, I noted a amount of >> engine oil in this pipe alone. Normal?? None of the others had any oil >> just >> the number one >> >> Thanks >> >> Larry >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=230431#230431 >> >> > > > -- > Checked by AVG. > 02/15/2009 6:09 PM > > ________________________________ Message 7 _____________________________________ Time: 10:30:49 AM PST US From: Lynn Matteson Subject: Re: JabiruEngine-List: Coil Cooling Tubes Unless I'm missing something, why do you think you need to cool the starter? It only operates for 2-3 seconds and unless something is VERY wrong, it should not get hot during that short run. When I first got my engine back in 2005, Ben Krotje told me they "hardly ever" saw the need for the cooling tubes to the coils. BUT...this was in 2005...things may have changed. I went ahead and put the tubes in anyway, and had no coil issues for as long as I had coils. Lynn Matteson Kitfox IV Speedster, taildragger Jabiru 2200, #2062, 605 hrs Sensenich 62x46 Electroair direct-fire ignition system New skis done and flying On Feb 17, 2009, at 10:37 AM, Beckman, Rick wrote: > Now, here's a question for you, Ian in adding the coil > cooling tubes, do you think you have robbed the starter of its > cooling blast of air? Don't you have to use the same holes for the > coil coolers as the ones that supply the air for the starter? > > Just curious I am running a Jab 3300 also. > > Rick > > > Ian, > > My experience based on two Jab 3300 installations is that the > cooling tubes are worth the effort. My aircraft (a highly modified > Esqual) has about 530 hours in just over 3 years. It has had no > ignition coil issues - it has had the blast cooling tubes from day > one. On the aircraft that our EAA chapter built (a 601XL) that has > about 200 hours in just under 2 years; it had a coil failure about > 10 hours ago. It now has the two blast cooling tubes. My guess is > that the existing holes in the ducts are adequate for cooling the > starter but not sufficient for long life of the coils. > > Blue Skies, > > Buz Rich > > Williamsburg, VA > > > href="http://www.matronics.com/Navigator?JabiruEngine-List">http:// > www.matronics.com/Navigator?JabiruEngine-Listhref="http:// > forums.matronics.com">http://forums.matronics.comhref="http:// > www.matronics.com/contribution">http://www.matronics.com/c_- > ============================================================ _- > ============================================================ _- > ============================================================ _- > contribution_- > =========================================================== ------------------------------------------------------------------------------------- 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.