---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 11/06/17: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:16 AM - Electronics ignition harness (Achille) 2. 04:55 AM - Re: Electronics ignition harness (Werner Schneider) 3. 06:20 AM - Re: Ray Allen Trim Servos and Garmin GAD 27 (The Kuffels) 4. 11:45 AM - voltage fluctuations (erich weaver) 5. 02:15 PM - Re: voltage fluctuations (user9253) 6. 05:25 PM - Re: voltage fluctuations (erich weaver) 7. 05:43 PM - Re: voltage fluctuations (user9253) 8. 06:37 PM - Re: Re: voltage fluctuations (Charlie England) ________________________________ Message 1 _____________________________________ Time: 03:16:41 AM PST US Subject: AeroElectric-List: Electronics ignition harness From: "Achille" Hello, Finishing to wire the Z19RB on my plane, I have a problem to resolve... the latest before flying again ! [Rolling Eyes] :P Something is missing between sparks and ignition coil... And to chose with my lack of knoweldge about this kind of technologie I'm a bit lost. I bought 2 electronics ignition from a UK shop (Leburg ignition) for my Vw 1835cc engine, and I just have in the user manuel : "Use only plug leads with high resistance (carbon) cores. Expect damage to the controllers if you use copper cored leads" I am unable to have from the seller another information (no very professional for a shop...) And I don't want to take a bad part and to risk ignition blow. What kind of wire, boots and sparks (resistance or whitout resistance) I have to use with this kind of ignition knowing that I just have to use (and to find !) wire with carbon cores ? I find an un-official source (forum) that, in the past, the conceptor of this ignition told that we have to use a resistance from 5Kohm (minimum) to 10Kohm. (But we couldn't ask him the question anymore...) I don't know if it's good choice, but for the moment I was thinking about to use silicone/steel wire (2,3 ft that is around 4Kohm resistance with this kind of wire : http://www.classicautoelec.com/fr/fil-haute-tension/1975-fil-haute-tension-silicone-rsistif-beru.html ) and sparks with a 5 Kohm resistance), to reach around 7,5 Kohms total resistance for each wire. (But it's not carbon core wire [Rolling Eyes] ) I will appreciate your point of view. Thank you. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=474463#474463 ________________________________ Message 2 _____________________________________ Time: 04:55:16 AM PST US Subject: Re: AeroElectric-List: Electronics ignition harness From: Werner Schneider Hi, if you click on their link for leads, you get to another UK company and they refer to their HT leads being made from Ferroflex and Maglite cables. searching them you should be able to find the material. e.g. http://www.gsparkplug.com/ignition/ignition-lead/graphite-resisted-core Good luck ;) Werner On 06.11.2017 12:15, Achille wrote: > > > I bought 2 electronics ignition from a UK shop (Leburg ignition) for my Vw 1835cc engine, and I just have in the user manuel : > > "Use only plug leads with high resistance (carbon) cores. > > ________________________________ Message 3 _____________________________________ Time: 06:20:25 AM PST US From: "The Kuffels" Subject: Re: AeroElectric-List: Ray Allen Trim Servos and Garmin GAD 27 << RAC actuators ... I think they draw about 100 mA. >> What I measured, with a large scale ammeter, was under 200 mA (first mark) so "about 100 mA" sounds correct. Tom Kuffel --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 4 _____________________________________ Time: 11:45:20 AM PST US Subject: AeroElectric-List: voltage fluctuations From: "erich weaver" I have my RV-7A wired per Z-13/8. I sometimes observe rapidly fluctuating voltage, varying from approximately 13.0 to 14.0 V, as indicated on my EFIS display. I figured it was just a loose connection at the EFIS, but I hooked up a voltage meter to the battery terminals and ran the engine and observed similar occasional fluctuations, so the problem lies elsewhere. I then tested voltage at pin 6 on my B&C LRC voltage regulator with the engine off and the master on, and observed a voltage of about 11.9 V. However, when I remove the wire from my master switch that feeds pin 6 and test voltage on it, I get the expected 13 V. The voltage drop is only observed after connecting the wire to the voltage regulator. B&C specs say the voltage drop should be 0.2V or less. Is my regulator bad and is this the cause of my voltage fluctuations? thanks Erich Read this topic online here: http://forums.matronics.com/viewtopic.php?p=474480#474480 ________________________________ Message 5 _____________________________________ Time: 02:15:33 PM PST US Subject: AeroElectric-List: Re: voltage fluctuations From: "user9253" If I am interpreting your voltage measurements correctly, it sounds like the master switch contacts or terminals have high resistance. Make sure the terminals are tight and cycle the master switch on and off many times to wear away corrosion. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=474481#474481 ________________________________ Message 6 _____________________________________ Time: 05:25:43 PM PST US Subject: AeroElectric-List: Re: voltage fluctuations From: "erich weaver" No, when I measure voltage at the regulator end of the wire, but with it disconnected from the regulator, I see the full 13 V. When I reconnect the wire to the regulator and measure the voltage again at the pin 6 terminal, it drops to 11.9 V. Measurements were repeated several times to confirm. Erich Read this topic online here: http://forums.matronics.com/viewtopic.php?p=474486#474486 ________________________________ Message 7 _____________________________________ Time: 05:43:43 PM PST US Subject: AeroElectric-List: Re: voltage fluctuations From: "user9253" OK Erich. That confirms my interpretation. There is a problem with the master switch or its connections. If you do not believe me, connect that wire to a test lamp instead of to regulator terminal 6. The lamp should be as high wattage as possible without blowing the fuse or tripping the breaker. If the voltage drops at the end of that wire, then there is resistance someplace in the circuit. If the connections are all good, then replace the master switch. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=474487#474487 ________________________________ Message 8 _____________________________________ Time: 06:37:44 PM PST US Subject: Re: AeroElectric-List: Re: voltage fluctuations From: Charlie England If his VOM has a 10 amp DC current range, he could just put it in series with that wire & check the current going through the regulator. (I agree that it's probably a bad switch, or crimp, etc.) On 11/6/2017 7:43 PM, user9253 wrote: > > OK Erich. That confirms my interpretation. There is a problem with the master switch or its connections. If you do not believe me, connect that wire to a test lamp instead of to regulator terminal 6. The lamp should be as high wattage as possible without blowing the fuse or tripping the breaker. If the voltage drops at the end of that wire, then there is resistance someplace in the circuit. If the connections are all good, then replace the master switch. > > -------- > Joe Gores --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.