---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 11/09/09: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 12:33 AM - Fund Raiser List of Contributors - Please Make A Contribution Today! (Matt Dralle) 1. 03:43 AM - Re: Re: Tanis engine preheat systems (Matt Tucciarone) 2. 03:52 AM - Re: Re: Tanis engine preheat systems (Matt Tucciarone) 3. 07:11 AM - Re: Tanis engine preheat systems (Roger Lee) 4. 07:37 AM - Re: Tanis engine preheat systems (rampil) 5. 01:37 PM - Re: Re: Tanis engine preheat systems (Matt Tucciarone) ________________________________ Message 0 _____________________________________ Time: 12:33:18 AM PST US From: Matt Dralle Subject: RotaxEngines-List: Fund Raiser List of Contributors - Please Make A Contribution Today! Each year at the end of the List Fund Raiser, I post a message acknowledging everyone that so generously made a Contribution to support the Lists. Its my way of publicly thanking everyone that took a minute to show their appreciation for the Lists. Won't you take a moment and assure that your name is on that List of Contributors (LOC)? As a number of members have pointed out over the years, the List seems at least - if not a whole lot more - valuable as a building/flying/recreating/entertainment tool as your typical magazine subscription! Please take minute and assure that your name is on this year's LOC! Show others that you appreciate the Lists. Making a Contribution to support the Lists is fast and easy using your Credit card or Paypal on the Secure Web Site: http://www.matronics.com/contribution or by dropping a personal check in the mail to: Matt Dralle / Matronics PO Box 347 Livermore CA 94551-0347 I would like to thank everyone that has so generously made a Contribution thus far in this year's List Fund Raiser! Remember that its YOUR support that keeps these Lists going and improving! Don't forget to include a little comment about how the Lists have helped you! Best regards, Matt Dralle Matronics Email List Administrator ________________________________ Message 1 _____________________________________ Time: 03:43:36 AM PST US From: "Matt Tucciarone" Subject: RE: RotaxEngines-List: Re: Tanis engine preheat systems Your right Roger, that is why I have 2 50 watt pads on my crank case. What I have done is like the Reiff preheater for the 912 engines. http://www.reiffpreheat.com/Rotax912.htm I also put a blanket around my engine so that it keeps the heat in. The only difference with the Tanis system is that you have the bolt heaters in each cylinder. I do like that but am not willing to pay $650 for it. I do not live in a real cold climate but I find that even when the engine is around 50f it starts harder than when warmed up. The other day that was the case. Hanger temp was 50f, I had the heater plugged in all night, it had been 2 weeks since I had been flying, the engine started like I had been flying it all morning. I believe any time you can get the engine closer to operating temps on start up, it is a good thing. So I will plug in the heater the night before anytime I go flying. Even in the summer. Matt Hi Guys, Before you think you have done a good preheat job read this article. Just warming oil does not preheat a system. Metal parts expand at different rates. There are a couple of factors. http://www.tanisaircraft.com/article_info.php?articles_id=4 -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=271739#271739 ________________________________ Message 2 _____________________________________ Time: 03:52:03 AM PST US From: "Matt Tucciarone" Subject: RE: RotaxEngines-List: Re: Tanis engine preheat systems As far as those bolds that are replaced in the Tanis system, this is what Reiff has to say about it: quote from their web site. A big advantage of our system is that it is non-invasive. All our parts are installed "on" the engine. Nothing is installed inside the engine, and you do not need to remove any Rotax parts or replace any Rotax parts with our parts. For example, one competitor's system replaces the Rotax intake manifold bolts and a crankcase bolt with their own heated bolts. These are simply hollowed out bolts with heating elements epoxied into the hollowed out core. As a general design philosophy we feel it is safer not to replace parts that were installed by the engine manufacturer, especially critical structural parts like bolts. Before you think you have done a good preheat job read this article. Just warming oil does not preheat a system. Metal parts expand at different rates. There are a couple of factors. http://www.tanisaircraft.com/article_info.php?articles_id=4 -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=271739#271739 ________________________________ Message 3 _____________________________________ Time: 07:11:05 AM PST US Subject: RotaxEngines-List: Re: Tanis engine preheat systems From: "Roger Lee" Tanis is approved by Rotax for those bolts and they are not structurally significant bolts. Any thing that you can do to get the entire engine warm before a cold start is good. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=271904#271904 ________________________________ Message 4 _____________________________________ Time: 07:37:15 AM PST US Subject: RotaxEngines-List: Re: Tanis engine preheat systems From: "rampil" I live in a place where the temp varies from -20F to 100F. I am also using electric heating pads from an amazon eShop. Heat spreads through metal very similarly to electricity, after enough time most everything gets warm. Personally, I would NOT put too much stock what Rotax suggests regarding 3rd party products. Cross marketing endorsements often have more to do with under the table financial arrangements than just the engineering. Just look at the history of approved and delisted engine oils. Honda oil never made the list because they make competing engines, for example. Ira -------- Ira N224XS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=271911#271911 ________________________________ Message 5 _____________________________________ Time: 01:37:02 PM PST US From: "Matt Tucciarone" Subject: RE: RotaxEngines-List: Re: Tanis engine preheat systems It is funny you should say that because with the Tanis system, you can only buy it from a Rotax dealer. All the other systems they sell, you can buy directly from Tanis. I am sure it works great but my 50 buck systems works great too. $650 is a rip off in my opinion. Matt I live in a place where the temp varies from -20F to 100F. I am also using electric heating pads from an amazon eShop. Heat spreads through metal very similarly to electricity, after enough time most everything gets warm. Personally, I would NOT put too much stock what Rotax suggests regarding 3rd party products. Cross marketing endorsements often have more to do with under the table financial arrangements than just the engineering. Just look at the history of approved and delisted engine oils. Honda oil never made the list because they make competing engines, for example. Ira -------- Ira N224XS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=271911#271911 ------------------------------------------------------------------------------------- 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.