---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Fri 05/30/08: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:31 AM - Re: Fuel Levels (ashontz) 2. 06:19 AM - Re: Re: Fuel Levels (MacDonald Doug) 3. 05:03 PM - Re: part of the 701 wiring question - 912 master warning (txpilot) 4. 07:21 PM - Jab 2200 vs 3300 (Tim Juhl) ________________________________ Message 1 _____________________________________ Time: 05:31:49 AM PST US Subject: Zenith701801-List: Re: Fuel Levels From: "ashontz" I've never seen the sender in my '85 Nissan, but I'm guessing it's capacitance due to the fact that my 91 suburban obviously has a float because the needle jumps around all over the place when I make a turn and the fuel sloshes around. The pickup truck doesn't do that, it takes it's good old time coming up to level after I fill it up at the gas station. It acts like it's a capacitance type sender. Interesting concept though that an ethanol blend would change the characteristics of the sender signal. Good argument for a float type sender. SafeAirOne wrote: > > ashontz wrote: > > This would explain why I ran out of gas, for the first time in 13 years, in my pickup truck a few months ago. The gauge works and was reading a little less than 1/4 tank. > > > You have a capacitance fuel sender in your pickup? Most are simple float-types... > > -Mark -------- Andy Shontz do not archive CH601XL - Corvair www.mykitlog.com/ashontz Read this topic online here: http://forums.matronics.com/viewtopic.php?p=185505#185505 ________________________________ Message 2 _____________________________________ Time: 06:19:43 AM PST US From: MacDonald Doug Subject: Re: Zenith701801-List: Re: Fuel Levels Andy, it has been my exprience that automotive senders are almost exclusivly float type senders. I belive the lag time in the fuel readings is a function of lag built into the gauge. My reasoning is that the circuitry for the capacitance type sender would be more complicated and therefor more expensive with little added benifit. Automotive companies would not spend the additional amount on something that is not obvious. Of course with an import vehicle, anything is possible. Doug MacDonald CH-701 Scratch Builder NW Ontario, Canada Do not archive --- ashontz wrote: > > > I've never seen the sender in my '85 Nissan, but I'm > guessing it's capacitance due to the fact that my 91 > suburban obviously has a float because the needle > jumps around all over the place when I make a turn > and the fuel sloshes around. The pickup truck > doesn't do that, it takes it's good old time coming > up to level after I fill it up at the gas station. > It acts like it's a capacitance type sender. > > Interesting concept though that an ethanol blend > would change the characteristics of the sender > signal. Good argument for a float type sender. > > ________________________________ Message 3 _____________________________________ Time: 05:03:07 PM PST US Subject: Zenith701801-List: Re: part of the 701 wiring question - 912 master warning From: "txpilot" > So how do you turn the master off in an emergency without damaging the rectifier? Sounds like a safety issue to me in that someone who may in fact need to turn the master off for safety reasons would be less inclined to, thinking they're going to have an expensive fix on their hands and instead winds up with a cockpit fire. > If it's that big a concern, purchase a Cessna-like master switch that prevents switching off the battery and leaving the alternator on-line. http://www.aircraftspruce.com/catalog/elpages/cessnasplit.php You can wire a relay to the alternator side of the switch that would take the alternator off-line when the relay is de-energized. See Bob Nuckoll's diagram Z-16 on how to do this: http://www.aeroelectric.com/articles/Rev11/AppZ_R11M.pdf Problem solved. Dan Ginty N787DG Read this topic online here: http://forums.matronics.com/viewtopic.php?p=185564#185564 ________________________________ Message 4 _____________________________________ Time: 07:21:23 PM PST US Subject: Zenith701801-List: Jab 2200 vs 3300 From: "Tim Juhl" I and a friend are at Jabiru USA taking the engine class this weekend. He ordered a 3300 which he is yet to take delivery on. There has been some discussion as to whether the 3300 is too powerful for the airframe and that a 2200 might be a much better fit. I'm building a 601 so I hope some of you 701 pilots can share your experiences and advice. Tim Juhl -------- ______________ CFII Champ L16A flying Zodiac XL - Jabiru 3300A Working on fuselage Read this topic online here: http://forums.matronics.com/viewtopic.php?p=185576#185576 ------------------------------------------------------------------------------------- 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.