---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Thu 05/19/11: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:41 AM - Re: Mag Ground (Clive Richards) 2. 07:17 AM - Re: Exhaust spring wear (Roger Lee) 3. 08:29 AM - Re: Re: Exhaust spring wear (Gordon) 4. 11:13 AM - Re: Fw: Kolb-List: hanger break-in (Noel Loveys) ________________________________ Message 1 _____________________________________ Time: 03:41:41 AM PST US From: "Clive Richards" Subject: Re: RotaxEngines-List: Mag Ground Vic I read someware this is OK provided the mags are grounded to prevent plugs firing and you have a seperate start button, as it is the much high voltage generated if a plug cannot fire which causes the damage and is the reason not to use a standard mag selector switch such as in a Cesna . Clive From: Richard Girard To: rotaxengines-list@matronics.com Sent: Thursday, May 19, 2011 12:27 AM Subject: Re: RotaxEngines-List: Mag Ground Gordon, No it's just the part of the module that gets damaged if it attempts to fire an ungrounded spark plug. Rick On Wed, May 18, 2011 at 11:51 AM, Gordon wrote: That's interesting, so is the diode suppose to protect the circuitry? If so it doesn't seem well thought out. Gordon ----- Original Message ----- From: Richard Girard To: rotaxengines-list@matronics.com Sent: Wednesday, May 18, 2011 12:30 PM Subject: Re: RotaxEngines-List: Mag Ground Vic, If your ignitions are still working you got away with it. There's a diode in the circuitry that takes the current when a plug tries to fire ungrounded and gets cooked. With it gone the ignition will be dead and since it's encapsulated the only fix is to replace the ignition module. Rick Girard On Wed, May 18, 2011 at 8:46 AM, Vic Peters wrote: All, In the past I have run my 912UL without plugs and or wires not connected to fill gas lines and bring up oil press. didn't know it was a no no. If I have caused a problem what would the symptoms be? -------- Vic 912ul Xtra Maine Too old to cut the mustard but not the cheese. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340279#340279 ========== -List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List ========== http://forums.matronics.com ========== le, List Admin. ="_blank">http://www.matronics.com/contribution ========== -- Zulu Delta Mk IIIC Thanks, Homer GBYM It isn't necessary to have relatives in Kansas City in order to be unhappy. - Groucho Marx href="http://www.matronics.com/Navigator?RotaxEngines-List">http://www. matronics.com/Navigator?RotaxEngines-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution -- Zulu Delta Mk IIIC Thanks, Homer GBYM It isn't necessary to have relatives in Kansas City in order to be unhappy. - Groucho Marx ________________________________ Message 2 _____________________________________ Time: 07:17:46 AM PST US Subject: RotaxEngines-List: Re: Exhaust spring wear From: "Roger Lee" I am familiar with those other springs and they are fine. Some of you have some excessive spring wear at 150 hrs. Thats lots of vibration pulsation going on or just poor quality springs. I guess the bottom line here is forget the hour time check or replacement on the springs and keep an extra good eye on them all the time. Make sure they are safety wired and silicone will definitely help this wear. Just a note on the silicone. From some of the planes that come in to my shop it is evident that many owners do not use a big enough bead down the spring or work it into the coils. The silicone must have enough mass to do you some good. A thin bead won't cut it. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340390#340390 ________________________________ Message 3 _____________________________________ Time: 08:29:57 AM PST US From: "Gordon" Subject: Re: RotaxEngines-List: Re: Exhaust spring wear 200+ hrs, no silicone and no signs of wear. Wondering if the silicone prevents the springs from holding with enough force to keep them in place. I also have so little vibration that I would not expect the springs to be and issue, but checked yesterday after reading the post. Gordon ----- Original Message ----- From: "Roger Lee" Sent: Thursday, May 19, 2011 10:14 AM Subject: RotaxEngines-List: Re: Exhaust spring wear > > I am familiar with those other springs and they are fine. Some of you have > some excessive spring wear at 150 hrs. Thats lots of vibration pulsation > going on or just poor quality springs. > > I guess the bottom line here is forget the hour time check or replacement > on the springs and keep an extra good eye on them all the time. Make sure > they are safety wired and silicone will definitely help this wear. Just a > note on the silicone. From some of the planes that come in to my shop it > is evident that many owners do not use a big enough bead down the spring > or work it into the coils. The silicone must have enough mass to do you > some good. A thin bead won't cut it. > > -------- > Roger Lee > Tucson, Az. > Light Sport Repairman - Maintenance Rated > Rotax Repair Center > Home 520-574-1080 TRY HOME FIRST > Cell 520-349-7056 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=340390#340390 > > > ________________________________ Message 4 _____________________________________ Time: 11:13:13 AM PST US From: "Noel Loveys" Subject: RE: RotaxEngines-List: Fwd: Kolb-List: hanger break-in Sounds like they knew exactly what they were after... The stolen property is probably in its way out of the country by now. Noel From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Jack Sent: May 18, 2011 11:37 AM Subject: RotaxEngines-List: Fwd: Kolb-List: hanger break-in -------- Original Message -------- Subject: Kolb-List: hanger break-in Tue, 17 May 2011 14:04:19 -0700 From: Ralph B kolb-list@matronics.com kolb-list@matronics.com Thought you guys might be interested in this posted on the Kolb-List. --> Kolb-List message posted by: "Ralph B" I have some sad news to report. Mark's hanger at Forest Lake (25D in Minnesota) was broken into last night and my Kolbra was targeted. The thieves stole the engine, battery, aircraft seatbelts, and all avionics by unbolting and cutting off the engine cable and unscrewing the panel and cutting off the wires to all the instruments. Mark's large snowblower, tools, and battery charger were also stolen. Mark just finished building his new RANS S-7 and he is worried that his fuel may have been compromised although his airplane looked intact. They got in through the locked door and then opened the bi-fold hanger door to bring a hoist and vehicle into the hanger. This was all done under the cover of darkness. Mark called the police this morning and they have the engine serial number (#4400582). The Warp Drive tapered prop was also stolen (#T9433). The engine had a Titan exhaust system with a specially-made prop spacer. This polished aluminum prop spacer is very large and is one-of-a-kind. If anyone has any information on this please contact me or local law enforcement (651-325-6461 Forest Lake Police Department). Please be on the lookout for anyone who has recently acquired a used 912UL 80hp engine. The instruments, include an EIS, transponder, Microair radio, ASI, altimeter, and compass. I would appreciate it if you could forward this to other lists that I am not aware of. Here are some pictures ... Thanks for any information about this theft, Ralph Burlingame Mound, Minnesota -------- Ralph B Original Firestar 447 N91493 E-AB 1000 hours 24 years flying it Kolbra 912UL N20386 3 years flying it 150 hrs Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340179#340179 Attachments: http://forums.matronics.com//files/what_the_panel_looked_like__786.jpg http://forums.matronics.com//files/missing_panel__174.jpg http://forums.matronics.com//files/missing_engine__101.jpg http://forums.matronics.com//files/kolbra_engine_stolen__104.jpg http://forums.matronics.com//files/everything_gone__837.jpg ------------------------------------------------------------------------------------- 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.