---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 08/04/08: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:08 AM - Re: Rotax 912 UL (Catz631@aol.com) 2. 01:46 PM - () 3. 02:56 PM - Spring Loading on the 912 carbs (Tommy Walker) 4. 04:05 PM - Re: 912 UL dieseling (jackandval) 5. 04:53 PM - Re: Re: 912 UL dieseling (Robert Borger) 6. 04:53 PM - Re: 912 UL dieseling (Roger Lee) 7. 04:56 PM - Re: Spring Loading on the 912 carbs (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 05:08:06 AM PST US From: Catz631@aol.com Subject: Re: RotaxEngines-List: Rotax 912 UL Rocky and Roger, Thanks for your replies. I have replaced the P leads and that seems to have solved the problem with one "mag' running rougher than the other. I pulled the old leads and still can't find any problem with them. Oh well, the new ones are working. As too the dieseling I have switched to premium auto fuel for these hot summer months and so far it hasn't happened again. Roger,I thought the timing was fixed on the 912. I also removed the Rotax tach and installed the new UMA tach and my "spiking" problem with the Rotax gage stopped. The new tach also has a wire that powers the Hobbs so that it runs only with the engine turning which is a nice feature. (also has internal painted range marks) Dick Maddux Kitfox 4-1200 Rotax 912UL Pensacola,Fl **************Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos. (http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut00050000000017 ) ________________________________ Message 2 _____________________________________ Time: 01:46:11 PM PST US ________________________________ Message 3 _____________________________________ Time: 02:56:25 PM PST US Subject: RotaxEngines-List: Spring Loading on the 912 carbs From: "Tommy Walker" Hi, I have a question for your guys. Is there any chance of stretching the throttle springs on the 912 carbs if you leave the throttle fully closed when the airplane is parked? It seems to me that if you hold a spring at a certain tension over a long period of time, it might lose some of it's tension. Is that not enough tension on the spring to worry about? Thanks Tommy Walker in Alabama N8701 68.2 HRS -------- Tommy Walker Read this topic online here: http://forums.matronics.com/viewtopic.php?p=196490#196490 ________________________________ Message 4 _____________________________________ Time: 04:05:53 PM PST US Subject: RotaxEngines-List: Re: 912 UL dieseling From: "jackandval" I didn't think you could adjust timing on a 912 Rotax? I thought it was fixed? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=196503#196503 ________________________________ Message 5 _____________________________________ Time: 04:53:05 PM PST US From: Robert Borger Subject: Re: RotaxEngines-List: Re: 912 UL dieseling Jack, Yes, that's correct. The timing is fixed, controlled by a set of lugs on the flywheel and sensors on the frame. I guess you could get in and grub around with the sensor position but you are treading on thin ice at that point. Good building and great flying, Bob Borger Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S http://www.europaowners.org/N914XL (99.9% done) Presently fighting gremlins in the starting circuit. 3705 Lynchburg Dr. Corinth, TX 76208 Home: 940-497-2123 Cel: 817-992-1117 On Aug 4, 2008, at 18:03, jackandval wrote: > > > > I didn't think you could adjust timing on a 912 Rotax? I thought it > was fixed? > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=196503#196503 > > ________________________________ Message 6 _____________________________________ Time: 04:53:43 PM PST US Subject: RotaxEngines-List: Re: 912 UL dieseling From: "Roger Lee" Hi Jack, For the most part you are correct that timing is not something to mess with , but if the ignition coils are not set up correctly or go bad there will be a change. There are 5 coils. The 5th. is the trigger coil for the tach. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=196513#196513 ________________________________ Message 7 _____________________________________ Time: 04:56:29 PM PST US Subject: RotaxEngines-List: Re: Spring Loading on the 912 carbs From: "Roger Lee" Hi Tommy, I don't think I have ever heard of a spring going bad from leaving the throttle closed. I think most people leave their planes that way. I have had 912's for a long time and not had any issues. I have to say that is one part I have never replaced. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=196514#196514 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-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/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-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.