---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Fri 01/15/10: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:18 AM - Re: Fuel pump failure (Thom Riddle) 2. 08:05 AM - Muffler FS (Chris Fordham) 3. 09:12 AM - Re: Re: Fuel pump failure (Joel M.) ________________________________ Message 1 _____________________________________ Time: 06:18:11 AM PST US Subject: RotaxEngines-List: Re: Fuel pump failure From: "Thom Riddle" I used to own a 701 and its nose up pitch potential is amazing. I suggest the following: Put the nose wheel up on a block or chair or whatever to get the tail down as low as possible. Then measure vertical distance from the wing tank outlet and the inlet to the mechanical fuel pump. You may be surprised to find that this distance is minimal and probably insufficient to provide enough head pressure for reliable gravity flow during full power nose high attitude. The suggestion made by someone else to pressure feed the tank vents is also a good one. I once owned a RANS S6S with these vent tubes. I had unequal draining from the two wing tanks due to a slight mis-alignment of the two filler cap vent tubes, so this minor pressure differential can make a big difference in flow rate. -------- Thom Riddle Buffalo, NY Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x31 I have reached an age when, if someone tells me to wear socks, I don't have to. - Albert Einstein Read this topic online here: http://forums.matronics.com/viewtopic.php?p=281605#281605 ________________________________ Message 2 _____________________________________ Time: 08:05:26 AM PST US From: "Chris Fordham" Subject: RotaxEngines-List: Muffler FS Muffler for Rotax 912uls, used very little in excellent condition, was off a Evector. $200.00.+ shipping Thanks. email - fconsult@telus.net ________________________________ Message 3 _____________________________________ Time: 09:12:16 AM PST US From: "Joel M." Subject: Re: RotaxEngines-List: Re: Fuel pump failure Here is an article about someone's fuel system modification on a Rans S-7. - It may be helpful.-------- http://www.pipcom.com/~cowcam/fu elsys.htm Joel --- On Fri, 1/15/10, Thom Riddle wrote: From: Thom Riddle Subject: RotaxEngines-List: Re: Fuel pump failure I used to own a 701 and its nose up pitch potential is amazing. I suggest t he following: Put the nose wheel up on a block or chair or whatever to get the tail down as low as possible. Then measure vertical distance from the w ing tank outlet and the inlet to the mechanical fuel pump. You may be surpr ised to find that this distance is minimal and probably insufficient to pro vide enough head pressure for reliable gravity flow during full power nose high attitude. The suggestion made by someone else to pressure feed the tank vents is also a good one. I once owned a RANS S6S with these vent tubes. I had unequal d raining from the two wing tanks due to a slight mis-alignment of the two fi ller cap vent tubes, so this minor pressure differential can make a big dif ference in flow rate. -------- Thom Riddle Buffalo, NY Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x31 I have reached an age when, if someone tells me to wear socks, I don't have to. - Albert Einstein Read this topic online here: http://forums.matronics.com/viewtopic.php?p=281605#281605 le, List Admin. ------------------------------------------------------------------------------------- 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.