---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Wed 06/15/11: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:08 AM - Re: slight leak at coolant hose elbow at #1 cyl. (Roger Lee) 2. 11:58 AM - RPM Variation (John Fasching) 3. 12:11 PM - Re: RPM Variation (Bob Comperini) ________________________________ Message 1 _____________________________________ Time: 06:08:47 AM PST US Subject: RotaxEngines-List: Re: slight leak at coolant hose elbow at #1 cyl. From: "Roger Lee" Hi Lucien, It happens once in a while, but not real common -------- 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=343034#343034 ________________________________ Message 2 _____________________________________ Time: 11:58:15 AM PST US From: "John Fasching" Subject: RotaxEngines-List: RPM Variation I posted this querry on Vansairforce net but got no response. My RV-12 with a Rotax 912ULS works fine. Good weather has allowed me to fly each day for the past 6 days, and I note an engine rpm variation of perhaps 100-rpm up or down while in cruise. I suspect, but am not certain by any means, that this is due to slight up or down pitch changes that change the loading on the engine. Doesn't seem to hurt anything, but I'd rather not have to keep an eye on the engine rpm. Your take? ________________________________ Message 3 _____________________________________ Time: 12:11:32 PM PST US From: Bob Comperini Subject: Re: RotaxEngines-List: RPM Variation > >My RV-12 with a Rotax 912ULS works fine. Good weather has allowed me to fly each day for the past 6 days, and I note an engine rpm variation of perhaps 100-rpm up or down while in cruise. > >I suspect, but am not certain by any means, that this is due to slight up or down pitch changes that change the loading on the engine. Caused by pitch changes? Yeah, I suspect that's the case. Do you use a digital tach? If so, those things can almost drive you nuts, because they do report every little variation. heck, you probably wouldn't even notice such a small change when using an analog gauge. Just my opinion. -- Bob Comperini e-mail: bob@fly-ul.com WWW: http://www.fly-ul.com ------------------------------------------------------------------------------------- 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.