---------------------------------------------------------- Zenith601-List Digest Archive --- Total Messages Posted Wed 01/02/13: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:18 AM - Re: Need help with diode across battery and starter relays (Jerry Latimer) ________________________________ Message 1 _____________________________________ Time: 07:18:02 AM PST US From: "Jerry Latimer" Subject: RE: Zenith601-List: Need help with diode across battery and starter relays John, You might want to join the aeroelectric forum. This is the type of question that is answered by the gurus on the forum. Anyway here is a link to photo on aeroelectric.om that shows the starter contactor and how it is wired. http://www.aeroelectric.com/Pictures/Contactors/s701-1.jpg Hope this helps. Jerry Latimer CH601HDS N316JL 200 hours and having the time of my life. -----Original Message----- From: owner-zenith601-list-server@matronics.com [mailto:owner-zenith601-list-server@matronics.com] On Behalf Of w8n2bup Sent: Tuesday, January 01, 2013 7:30 PM Subject: Zenith601-List: Need help with diode across battery and starter relays --> After a lot of Googling, I thoroughly understand the reason for the diode but I am hoping that someone can give me the exact placement of a diode for both the battery and the starter contactors (relays) in my Jabiru 3300. First the battery contactor. I have a large post going to the battery, a small post going to the master switch, and a second large post going to the starter relay and elsewhere. When I put my voltmeter on the battery post, I have my 12 volts. When I put it on the small post, I was surprised to find voltage there, too, with the master off. When I flip the master switch on.,, it mostly goes away on the small post. In any case, the best I can figure is to put the cathode (stripe end) on the large post going to the battery and the anode on the small post. I was thrown a bit by some net comments saying it goes "across" the relay. Other comments showed it going to ground. On top of it all, my firewall kit came with a diode made with the cathode (band end! ) going to a small ring connector and the anode going to a large ring. Seems backward. Maybe someone accidentally reversed it? Now the starter relay. It has a few extra large spade connectors and posts. When I put my meter on diode setting, there appears to be a diode built into the relay. With no markings on the relay, I can't look it up to know for sure. I guess it wouldn't hurt to add a diode anyway with the cathode pointing to the battery relay and the anode going to the small starter switch wire post? Just hoping someone knows exactly what I have and how to connect the diode or diodes. If easier, please call me evenings at (913) 915-1989. Still W8N2BUP, John Read this topic online here: http://forums.matronics.com/viewtopic.php?p=391362#391362 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith601-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith601-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/zenith601-list Browse Digests http://www.matronics.com/digest/zenith601-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.