---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Tue 06/02/09: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:41 AM - AW: Re: Low oil temps on 912ULS (icrashrc) 2. 08:31 AM - Re: Rotax 912 - interesting observation (jimk) 3. 09:19 AM - Re: Re: Rotax 912 - interesting observation (Robert C Harrison) 4. 10:36 AM - Re: Rotax 912 - interesting observation (jimk) 5. 11:37 AM - Re: Rotax 912 - interesting observation (lucien) ________________________________ Message 1 _____________________________________ Time: 12:41:36 AM PST US Subject: RotaxEngines-List: AW: Re: Low oil temps on 912ULS From: "icrashrc" Thank you. I've saved the site for future use, if needed. -------- Scott www.ill-EagleAviation.com do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246422#246422 ________________________________ Message 2 _____________________________________ Time: 08:31:24 AM PST US Subject: RotaxEngines-List: Re: Rotax 912 - interesting observation From: "jimk" I have a 912ULS with 25 hrs on it. I have noticed that if the engine is warm or has been run in the last 24 hrs the compression "bumps" are very obvious when burbing the engine. However, if the engine has not been run for a few days it is much easier to turn over and the compression spots are much less noticeable. I had the Rotax 25hr check done by a Rotax Service Center but a compression check was not done and is not specified by Rotax until the 50hr check. Engine seems to be running OK. Still it makes me wonder if all is well. Jim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246458#246458 ________________________________ Message 3 _____________________________________ Time: 09:19:58 AM PST US From: "Robert C Harrison" Subject: RE: RotaxEngines-List: Re: Rotax 912 - interesting observation Hi! Jim I don't think you have any problem. Having stood for a period the piston rings and valve guides will have lost the oil so you can expect compressions to be less sharp. Regards Bob Harrison G-PTAG (Europa c/w Rotax 914) -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of jimk Sent: 02 June 2009 16:31 Subject: RotaxEngines-List: Re: Rotax 912 - interesting observation I have a 912ULS with 25 hrs on it. I have noticed that if the engine is warm or has been run in the last 24 hrs the compression "bumps" are very obvious when burbing the engine. However, if the engine has not been run for a few days it is much easier to turn over and the compression spots are much less noticeable. I had the Rotax 25hr check done by a Rotax Service Center but a compression check was not done and is not specified by Rotax until the 50hr check. Engine seems to be running OK. Still it makes me wonder if all is well. Jim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246458#246458 ________________________________ Message 4 _____________________________________ Time: 10:36:39 AM PST US Subject: RotaxEngines-List: Re: Rotax 912 - interesting observation From: "jimk" Thanks. I hadn't thought of that. (Taking an 800 mile cross-country next week and was a little nervous about it) Jim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246479#246479 ________________________________ Message 5 _____________________________________ Time: 11:37:42 AM PST US Subject: RotaxEngines-List: Re: Rotax 912 - interesting observation From: "lucien" jimk wrote: > Thanks. I hadn't thought of that. > > (Taking an 800 mile cross-country next week and was a little nervous about it) > > Jim Mine 912uls is the same way. Super stiff when hot and looser by a bunch when cold. I've always figured that was because all the clearances are tighter when it's hot... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246485#246485 ------------------------------------------------------------------------------------- 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.