---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Tue 01/22/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:05 AM - Re: reverse prop rotation at shut down (Catz631@aol.com) 2. 07:47 AM - Re: reverse prop rotation at shut down (Ricardo Urio) 3. 03:19 PM - 582 parts (jerry evans) ________________________________ Message 1 _____________________________________ Time: 06:05:38 AM PST US From: Catz631@aol.com Subject: Re: RotaxEngines-List: reverse prop rotation at shut down Roger, I had the gearbox disassembled and re shimmed about 65 hrs ago. It didn't make any difference at all, it still goes backward sometimes. For what it is worth, the engine is a mid 90's 912 UL with about 350 hrsTT. The only thing that appears to help is to pull the throttle back until the engine sounds like a "grinder' (not good on the box I am sure) around 1000 rpm and then shut it down . The much lighter Kiev (vs Warp) really reduced these events though. The last one was my fault as I shut down about 1400 rpm. Why hasn't it sucked air into the lifters so far ? It turns backwards at least 3 full revolutions. They told us in all my Rotax classes to never turn the prop backwards or this could happen. I have had the reverse business at least 10 times and on each occasion I have done the valve check and it never caught any air in the valves. Oil filter analysis doesn't reveal any metal either. I do like to work on engines,airframes ,etc which is a good thing cause the Rotax has given me a lot of practice and I learn more about it. This engine is a mystery in many ways requiring research and advice from gurus such as yourself (which I thank you for !) I am sure that if I had a younger engine I would not have the problems that I do.(broken coil wires,old HD wires,spark plug caps,etc) I am still adverse to taking my plane on a long trip though as there would be little to no support if the engine decides to act up again. We do have a guy here in Pensacola that flys his CT back and forth to the West coast and thinks nothing of it. An AI friend of mine(with my assist) help to maintain it for him and it has been very reliable. By the way,I was able to get new NGK plug caps for $6.30 each vs the almost $50 Rotax wanted. They are the same part number. Overall I saved about $500 on my plug harness replacement and it did solve my misfire problem. The engine runs even smoother now ! Dick Maddux Rotax 912UL Kitfox 4 ________________________________ Message 2 _____________________________________ Time: 07:47:29 AM PST US Subject: Re: RotaxEngines-List: reverse prop rotation at shut down From: Ricardo Urio It=B4s like autoignition. Maybe a hot point inside engine can do it, like excessive carbonization, of a incomplete very rich burn, or maybe wrong spark plugs. Have you tested your magneto switch to see if it is grounding appropriately the magneto wire ? Ricardo Urio 2013/1/22 > ** > Roger, > I had the gearbox disassembled and re shimmed about 65 hrs ago. It didn' t > make any difference at all, it still goes backward sometimes. > For what it is worth, the engine is a mid 90's 912 UL with about 350 > hrsTT. > The only thing that appears to help is to pull the throttle back until > the engine sounds like a "grinder' (not good on the box I am sure) around > 1000 rpm and then shut it down . > The much lighter Kiev (vs Warp) really reduced these events though. The > last one was my fault as I shut down about 1400 rpm. > Why hasn't it sucked air into the lifters so far ? It turns backwards at > least 3 full revolutions. They told us in all my Rotax classes to never > turn the prop backwards or this could happen. I have had the reverse > business at least 10 times and on each occasion I have done the valve che ck > and it never caught any air in the valves. Oil filter analysis doesn't > reveal any metal either. > I do like to work on engines,airframes ,etc which is a good thing cause > the Rotax has given me a lot of practice and I learn more about it. This > engine is a mystery in many ways requiring research and advice from gurus > such as yourself (which I thank you for !) I am sure that if I had a > younger engine I would not have the problems that I do.(broken > coil wires,old HD wires,spark plug caps,etc) > I am still adverse to taking my plane on a long trip though as there > would be little to no support if the engine decides to act up again. We d o > have a guy here in Pensacola that flys his CT back and forth to the West > coast and thinks nothing of it. An AI friend of mine(with my assist) help > to maintain it for him and it has been very reliable. > By the way,I was able to get new NGK plug caps for $6.30 each vs the > almost $50 Rotax wanted. They are the same part number. Overall I saved > about $500 on my plug harness replacement and it did solve my misfire > problem. The engine runs even smoother now ! > > Dick Maddux > > Rotax 912UL > > Kitfox 4 > > * > =========== =========== =========== =========== > * > > ________________________________ Message 3 _____________________________________ Time: 03:19:28 PM PST US From: jerry evans Subject: RotaxEngines-List: 582 parts I have a C- box with 150 hr on it in great shape $600 a pair of bing 54 carbs with carb heat $250 a new IVO med prop two blade with10 hr , oil injector, plated exhaust system, CDI also a BRS parachute let me know if anyone want anything 530-228-5185 or kitfox555@sbcglobal.net Jerry Evans KitfoxII Magalia Calif. N582'er' kitfox 555 ------------------------------------------------------------------------------------- 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.