---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Sat 01/13/07: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:00 AM - Re: Evans Coolant and SB-912-043-R2 (Thom Riddle) 2. 10:18 AM - Re: Evans Coolant and SB-912-043-R2 (D Wysong) 3. 11:29 AM - Re: Re: Evans Coolant and SB-912-043-R2 () 4. 02:50 PM - Re: Evans Coolant and SB-912-043-R2 (Roger Lee) 5. 03:30 PM - Re: Evans Coolant and SB-912-043-R2 (Tommy Walker) 6. 05:02 PM - Re: Evans Coolant and SB-912-043-R2 (Roger Lee) 7. 05:04 PM - Re: Evans Coolant and SB-912-043-R2 (Gilles Thesee) 8. 07:51 PM - Re: Evans Coolant and SB-912-043-R2 (Tommy Walker) 9. 08:18 PM - Re: Re: Evans Coolant and SB-912-043-R2 (NYTerminat@aol.com) ________________________________ Message 1 _____________________________________ Time: 05:00:23 AM PST US From: Thom Riddle Subject: Re: RotaxEngines-List: Evans Coolant and SB-912-043-R2 The spec. for the higher pressure radiator cap (1.2 bar vs .9 bar) is in same service bulletin as the Evans coolant.... SB-912-043 Thom in Buffalo ________________________________ Message 2 _____________________________________ Time: 10:18:54 AM PST US From: "D Wysong" Subject: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 Howdy Tommy, No need for a new cap, just a new sticker for your old/stock cap that says you're running Evans (... and to remind anyone working on your airplane NOT to add water to the system). Regarding the cap, Evans says you can go to a zero-pressure cap if using their fluid. However, Rotax prefers (per the article below) that you continue to operate the engine under pressure with the original cap. Here's a preview link to a Sport Pilot article written by Lockwood that explains all of the details. The page you'll be taken to gives the direct URL to the article PDF or you can click the tinyurl link instead. The article tells you where to get the $0.50 sticker, too. http://preview.tinyurl.com/y56tml Hope this helps! D --------------------------- On 1/13/07, RotaxEngines-List Digest Server wrote: > > Time: 08:44:05 AM PST US > Subject: RotaxEngines-List: Evans Coolant and SB-912-043-R2 > From: "Tommy Walker" > > > I have just about decided to use Evans Coolant instead of putting another > gauge > on my panel to monitor temp of the 50/50 mix on our 912ULS. > > I seem to remember reading somewhere that I should use another radiator > cap with > a different pressure setting. Can someone point me to that thread? > > Thanks, > > Tommy Walker in Alabama > N8701 90% > ________________________________ Message 3 _____________________________________ Time: 11:29:30 AM PST US Subject: Re: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 From: Hello D "Evans says you can go to a zero-pressure cap if using their fluid." Sometimes you need to know the whole story. It is true Evans says you can run a zero pressure cap, but they also tell you that the cap needs to be on the suction side of the pump. Rotax is not on the suction side. They also want you to help out with the lower thermal conductivity of their fluid compared to 50/50 by increasing pump volume or increase surface area of radiator, and want not too much restriction in the radiator itself. This is from the mouth of their research guy. I am going to run a .9 on my 914. Ron P. ________________________________ Message 4 _____________________________________ Time: 02:50:37 PM PST US Subject: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 From: "Roger Lee" HI All, I had Evans in my last 912s and I liked it. I really did not notice any temp. change. I just put Evans in my new Flight Desin CT. I did a double flush and then put in the Evans NPG+ and everything seems to be good. I have Evans in my Honda Goldwing, too. In 3 years I have never had any issues and have been happy with their product. I use the original cap when a have switched over and just put the Evans sticker on the cap. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=87407#87407 ________________________________ Message 5 _____________________________________ Time: 03:30:26 PM PST US Subject: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 From: "Tommy Walker" Thanks all, that's a lot of good information. I have the .9 bar cap and I'm going to use it. This just occurred to me. Will the Evans coolant boil? I have my expansion tank in line, but am not sure if it will be needed. Thanks, Tommy Walker in Alabama -------- Tommy Walker Read this topic online here: http://forums.matronics.com/viewtopic.php?p=87417#87417 ________________________________ Message 6 _____________________________________ Time: 05:02:59 PM PST US Subject: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 From: "Roger Lee" Hi Tommy, It should not boil. I have never had a problem. The boiling temp. is 375F. If your coolant gets that hot you have much bigger issues to worry about. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=87430#87430 ________________________________ Message 7 _____________________________________ Time: 05:04:58 PM PST US From: Gilles Thesee Subject: Re: RotaxEngines-List: Evans Coolant and SB-912-043-R2 Tommy Walker a crit : > > Thanks all, that's a lot of good information. I have the .9 bar cap and I'm going to use it. > > This just occurred to me. Will the Evans coolant boil? I have my expansion tank in line, but am not sure if it will be needed. > > Tommy, It won't boil, but it will certainly expand. What advantages do you actually see in the use of the Evans coolant against 50/50 mix ? Regards, Gilles Thesee Grenoble, France http://contrails.free.fr ________________________________ Message 8 _____________________________________ Time: 07:51:53 PM PST US Subject: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 From: "Tommy Walker" Gilles, Unless I misunderstood the following, I think that I am required to either switch to Evans, or install a water temperature gauge in order to keep using 50/50 mix of water and glyco antifreeze. Please see below. I have the entire document if you would like me to forward it to you. Maybe I just misread it? Release of REVISED MANDATORY Rotax Service Bulletins For Rotax 912 & 914 Engines "...Understanding the benefits provided by conventional water - glycol coolant in some applications, Rotax has now released a new revision of Service Bulletin SB-912-043 / SB-914-029. With the release Service Bulletin SB-912-043 R2 / SB-914-029 R2, use of conventional 50/50 water - glycol coolant is once again allowed, provided certain conditions can be met. In order for a 912 or 914 series engine to be safely operated with conventional water - glycol coolant, SB-912-043 R2 / SB-914-029 R2 mandates that both cylinder head temperatures AND coolant exit temperature must be monitored at all times...." Gilles.Thesee(at)ac-greno wrote: > Tommy Walker a crit : > > > > > > > Thanks all, that's a lot of good information. I have the .9 bar cap and I'm going to use it. > > > > This just occurred to me. Will the Evans coolant boil? I have my expansion tank in line, but am not sure if it will be needed. > > > > > > > > > > Tommy, > > It won't boil, but it will certainly expand. > What advantages do you actually see in the use of the Evans coolant > against 50/50 mix ? > > Regards, > Gilles Thesee > Grenoble, France > http://contrails.free.fr -------- Tommy Walker Read this topic online here: http://forums.matronics.com/viewtopic.php?p=87472#87472 ________________________________ Message 9 _____________________________________ Time: 08:18:30 PM PST US From: NYTerminat@aol.com Subject: Re: RotaxEngines-List: Re: Evans Coolant and SB-912-043-R2 Tommy, I believe you are right, I used the standard cap, labeled it with the Evans label and yes you still need the overflow bottle for expansion if nothing else. Bob Spudis In a message dated 1/13/2007 10:52:56 P.M. Eastern Standard Time, twalker@cableone.net writes: Gilles, Unless I misunderstood the following, I think that I am required to either switch to Evans, or install a water temperature gauge in order to keep using 50/50 mix of water and glyco antifreeze. Please see below. I have the entire document if you would like me to forward it to you. Maybe I just misread it? ------------------------------------------------------------------------------------- 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.