---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Tue 05/12/09: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:16 AM - Re: 701 fuel system design (jetboy) 2. 08:26 AM - Quick Fuel Drains (Dan Wilde) 3. 09:22 AM - Re: Needed: Zenith 701 gascolator 7E4-2 (bryanekholm) 4. 11:56 AM - Re: Quick Fuel Drains. (Gary Gower) ________________________________ Message 1 _____________________________________ Time: 01:16:52 AM PST US Subject: Zenith701801-List: Re: 701 fuel system design From: "jetboy" There are a few guidelines I was told by an experimental builder, that all fuel lines should run downhill to the lowest point, of a drainable location, thence travel uphill to the carb inlet. With the CZAW layout supplied, most of this was not possible due to the location of the andair fuel selector on one side of the rear cabin meaning the fuel line from the other side had to travel up and over to the valve. I scrapped that layout, instead running the fuel lines down from the cabin wing roots, behind the pillars, across the rear of the seat back, into the fuel selector which is located just above the control tunnel mounted on the seat back panel. There is an area there, inside the working arc of the control system, that clears everything. The single fuel line exits the valve, runs down and across to an ACS gascolator on the right side panel just aft of the main gear mountings. Drain valve hangs through a hole there. mounting was easy with a P clamp around each line connection. The otlet line runs along the floor on the right side, thru the firewall and up to the carb. As I have a Jabiru, with a low carb position and gravity feed I have not required any fuel pumps. I found the location of the fuel selector, forward facing and between the seats, easy to reach and operate - perhaps harder to see but easy to feel the correct position, and I orientated it so the pointer is towards the tank selected (had to re-label the faceplate) Hope this explanation helps the planes too far away for a photo right now. Ralph -------- Ralph - CH701 / 2200a Read this topic online here: http://forums.matronics.com/viewtopic.php?p=243672#243672 ________________________________ Message 2 _____________________________________ Time: 08:26:34 AM PST US From: Dan Wilde Subject: Zenith701801-List: Quick Fuel Drains I have had two of the Push-Type Quick Fuel Drains start leaking on me. They will start to slowly drip and at first can be fixed by just snapping the valve open and closed. However, this only lasts a short time and then they drip again. On removal of the drain, I have found that the little "O" ring has worn down and does not fit tight. Is there a better drain valve type out there? I really don't want to have to change these valves every year. Dan Wilde N948DW ________________________________ Message 3 _____________________________________ Time: 09:22:20 AM PST US Subject: Zenith701801-List: Re: Needed: Zenith 701 gascolator 7E4-2 From: "bryanekholm" Bobkat, I'll take one of the four. Bryan Ekholm 5077 County Road 3 NW Annandale, MN 55302 320-282-7042 ekholmbk@lakedalelink.net Let me know how much for the postage and I'll send you a check. Bryan Ekholm -------- Bryan Ekholm Read this topic online here: http://forums.matronics.com/viewtopic.php?p=243727#243727 ________________________________ Message 4 _____________________________________ Time: 11:56:00 AM PST US From: Gary Gower Subject: Re: Zenith701801-List: Quick Fuel Drains. Hello Dan, - Both of the wing tanks valves leaked at the very beguining of flying my 701 ,- my fault, probably I was not very carefull in cleaning (flushing) enou gh the fuel system.- when I checked them I found very little debris.- - We had to change also the lexan from the doors (fuel stained and cracke d them). I cleaned the valves-well,- and installed them.-- We-remove and carefully inspect-all the QFD's o rings (wings and-gasc olator) every 100 hrs (or yearly),- not a big deal...-- -240 hrs la ter (drained about 8 times a month) no more leaks.- Probably I am lucky. -- I- have always some extra o rings (Viton type) as spares in my sma ll airplane tool (plastic) box, never had to use them yet. - Saludos Gary Gower. Flying from Chapala, Mexico. 701 912S --- On Tue, 5/12/09, Dan Wilde wrote: From: Dan Wilde Subject: Zenith701801-List: Quick Fuel Drains I have had two of the Push-Type Quick Fuel Drains start leaking on me. The y will start to slowly drip and at first can be fixed by just snapping the va lve open and closed. However, this only lasts a short time and then they drip again. On removal of the drain, I have found that the little "O" ring has worn down and does not fit tight. Is there a better drain valve type o ut there? I really don't want to have to change these valves every year. Dan Wilde N948DW =0A=0A=0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith701801-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith701801-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/zenith701801-list Browse Digests http://www.matronics.com/digest/zenith701801-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.