---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Wed 06/20/12: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:18 PM - High EGTs when Climbing (michael baker) 2. 03:28 PM - Re: High EGTs when Climbing (FLYaDIVE) 3. 03:28 PM - Re: High EGTs when Climbing (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 02:18:25 PM PST US From: michael baker Subject: RotaxEngines-List: High EGTs when Climbing Hi Have Rotax 80hp UL, experiencing high EGTs when climbing. Today outside temp 85F. One EGT 1605F the other 1565F. Oil and cylinder temps in normal range. Water temp also in normal range. If I lower the A/C nose and reduce the power the EGTs drop to top of the normal range. Is it ok to continue climbing with high EGTs if oil, cylinder head, and water temps are in normal range? Thanks, Mike ________________________________ Message 2 _____________________________________ Time: 03:28:46 PM PST US Subject: Re: RotaxEngines-List: High EGTs when Climbing From: FLYaDIVE Hi Mike: It does not make sense to climb at an angle that produces high temps. The heat has to go somewhere and that put stress on cylinders and cooling systems and of course the exhaust system that directly has to handle the higher temps. If all it takes is a lower AOA then just do it. You will be saving the engine. Don't even start with a high AOA, keeping FULL POWER in is OK as long as there is air for cooling. Rase the nose and your air diminishes. And you problems begin to increase. Also remember - Heat is a LAGGING device, just like the Temp Gauge. By the time you see Red Line the temps are ABOVE RED LINE. Just like Air Speed... By the time you see an Indicated Air Speed the true air speed is past that point. Barry On Wed, Jun 20, 2012 at 5:15 PM, michael baker wrote: > > Hi > > Have Rotax 80hp UL, experiencing high EGTs when climbing. Today outside > temp 85F. > One EGT 1605F the other 1565F. Oil and cylinder temps in normal range. > Water temp > also in normal range. If I lower the A/C nose and reduce the power the > EGTs drop to top of > the normal range. > > Is it ok to continue climbing with high EGTs if oil, cylinder head, and > water temps are in normal range? > > Thanks, Mike > > ________________________________ Message 3 _____________________________________ Time: 03:28:46 PM PST US Subject: RotaxEngines-List: Re: High EGTs when Climbing From: "Roger Lee" Hi Mike, The EGT's typically are the more stable temps in climb compared to all the others like oil and coolant because it is more regulated by fuel consistency and not as subjected to air flow like coolant or oil with air passing over the radiator. I would do some checking on all temps and sensors before I would believe everything is okay except the EGT's. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center - Heavy Maint. Rated Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=376167#376167 ------------------------------------------------------------------------------------- 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.