---------------------------------------------------------- Allegro-List Digest Archive --- Total Messages Posted Mon 09/03/07: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:33 PM - Oil Thermostat (Bernhard10) 2. 05:34 PM - Allegro 2000 Wing Tanks - Fill/Drain Procedure (Hugh McKay III) 3. 11:49 PM - Re: Allegro 2000 Wing Tanks - Fill/Drain Procedure (Aero Siam) ________________________________ Message 1 _____________________________________ Time: 01:33:42 PM PST US Subject: Allegro-List: Oil Thermostat From: "Bernhard10" Due to the cooler temperatures here in the NW my oil temps stay mostly on the cool side and it take a pretty long warm up period to reach the min. temp.. I decided to buy and Oil thermostat from CPS ( see attached pic ) I am curious if anybody is using this thermostat and if so, how & where did you mount it ?? Some pictures would greatly help. Thanks in advance Read this topic online here: http://forums.matronics.com/viewtopic.php?p=132550#132550 Attachments: http://forums.matronics.com//files/oil_therm_208.jpg ________________________________ Message 2 _____________________________________ Time: 05:34:15 PM PST US From: "Hugh McKay III" Subject: Allegro-List: Allegro 2000 Wing Tanks - Fill/Drain Procedure Gentlemen: I have aluminum wing tanks on my Allegro 2000, but have not yet used them. I have a number of questions relative to using these tanks. If any of you have wing tanks, what is the procedure you follow to fill the two tanks. Also what is the procedure to follow to drain them back to the main belly tank? I assume you use the electric fuel pump to fill the wing tanks, pumping fuel from the main tank to one wing tank, and then to the other wing tank. How do you know when the tank is full? Can you see fuel returning to the main tank through the clear overflow line? How long does it take to fill one tank using the electric fuel pump? I also assume you do this pumping using the battery with the engine off. Correct? If you are flying and you need the fuel from the wing tanks, I assume you cut the electric fuel pump off and open each wing tank valve to drain back to the main tank. The two wing tanks combined hold aprx.10 gallons (5 gallons each). If you start draining the 10 gallons before you have enough empty volume in the main tank, what happens when the main tank fills? Does it fill over the lip of the fuel tank cap on the side of the plane? When you normally fill the main tank you can never fill the tank higher than the lip of the cap opening (i.e. this is a full tank!). I am somewhat confused about this whole matter, and would appreciate some guidance and direction. Hugh McKay Allegro 2000 Rotax 912 UL N661WW ________________________________ Message 3 _____________________________________ Time: 11:49:48 PM PST US Subject: Allegro-List: Re: Allegro 2000 Wing Tanks - Fill/Drain Procedure From: "Aero Siam" Hugh Your assumptions are correct. The valve has 3 positions - 12 o'clock pump up, 3 normal flight, 6 drain down. I made a color coded decal for the 3 positions. Fill the belly tank. Engine off, set valve to pump up and switch on pump. Open 1 wing tank valve. It takes about 10-15 mins to fill a tank. When full, the transparent tubes fill with fuel and recirculate back to the belly tank. Set valve back to normal flight and switch off pump.. In flight, open both wing valves and set to drain down. I think some of the fuel goes direct to the engine so the belly will appear to refill slowly. I refill when my guage shows 25 litres or 6.7 gall and stop at 40 litres (10.8 gall) because my guage shows full at 40 litres. Do this twice in flight. Return the valve to normal flight. We measuresd the usable capacity as 18.7 for each wing tank. I have never overfilled the belly tank. I think it would overflow out of the overflow tube if the filler cap seal is good. Note there is a recent Rotax mandatory about electric pumps and certain serial numbers of Rotax mechanical pumps. The tanks are expensive and a little fiddly to use but give the plane huge range and a safety margin for a divert Regards Paul Read this topic online here: http://forums.matronics.com/viewtopic.php?p=132620#132620 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message allegro-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Allegro-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/allegro-list Browse Digests http://www.matronics.com/digest/allegro-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.