---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Wed 06/12/13: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:25 PM - Hi CHT on the Rotax 912uls (Rich L) 2. 08:18 PM - Re: Hi CHT on the Rotax 912uls (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 04:25:39 PM PST US Subject: RotaxEngines-List: Hi CHT on the Rotax 912uls From: "Rich L" A lot has been said about the 912uls cooling. I have had CHT temps over 240 degF for over 2 years in the summer. Not to red line but Not Comfortable to fly any distance with. I have over 1100 hours on my Kitfox S7 and my Evans "lifetime" coolant and was ready for a change. I read an article, (I think by Roger) about using 50/50 Antifreeze instead of Evans would reduce bring the temps by 25 to 30 degrees. It works!!!! My CHT and Coolant Temp are down 25 degrees today with the same OAT as when they were in the 240 range. I am ready to take a summer trip again. BTW, I chose Prestone DexCool (Orange). Thanks Roger -------- Rich Little N812RL S-7 912ULS North Idaho Kiev Prop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=402577#402577 ________________________________ Message 2 _____________________________________ Time: 08:18:43 PM PST US Subject: RotaxEngines-List: Re: Hi CHT on the Rotax 912uls From: "Roger Lee" Your Welcome. Evans isn't a bad coolant it just comes with a temp penalty. I wouldn't use it unless my engine was an open air engine. These newer tight cowled aircraft just don't help out much for cooling. To help keep down radiated and convective heat on the inside of the cowl on all the hoses and wiring you can use some header wrap on the exhaust pipes from the head down and under the springs. Many of us have been doing this for 10+ years without any issues. The header wrap can be purchased from most automotive stores. -------- 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=402590#402590 ------------------------------------------------------------------------------------- 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.