---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Thu 08/16/12: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:28 AM - Mooney Alternator woes (Ralph E. Capen) ________________________________ Message 1 _____________________________________ Time: 06:28:46 AM PST US From: "Ralph E. Capen" Subject: Avionics-List: Mooney Alternator woes My hangar neighbor is trying to figure out why his alternator occasionally drops off line - requiring a weird reset sequence. He has to shut off the battery and field, then go to a low power setting and bring it back up again. Something about resetting an overvoltage protection device. It is an M20S with Cont 550 and gear driven alternator. The first regulator lasted only a couple of years before giving up the ghost and the replacement was a special from Mooney. My first line of thinking is to locate the regulator and test it. Nobody knows where it is hiding. (I'm in DC - the plane is in DE...I'll be home next weekend to help more.) Meanwhile, does anyone have an electronic copy of the Light Plane Maintenance article on troubleshooting alternators...and the Mooney M20S maintenance manual? If we can find it, I'm hoping that we can determine if the regulator is the culprit. Thanks in advance, Ralph RV6A N822AR in N06 - waiting for my engine/prop to come back from overhaul after being hit by a flying hangar door! ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-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/avionics-list Browse Digests http://www.matronics.com/digest/avionics-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.