---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Mon 07/24/06: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:30 AM - Re: Magneto P leads (Noel Loveys) 2. 10:01 AM - Re: Magneto P leads (DEAN PSIROPOULOS) (Matt Jurotich) ________________________________ Message 1 _____________________________________ Time: 05:30:09 AM PST US From: "Noel Loveys" Subject: RE: Engines-List: Magneto P leads --> Engines-List message posted by: "Noel Loveys" The centre wire of your P Lead should go to your Ignition switch. The nut you are talking about holds the P-Lead in place and prevents the P-Lead from grounding at the mag end. When the P-Lead is grounded there is no spark to fire the plugs. In order for the engine to work the P-Lead must "float" with no grounds any where in it. Noel > -----Original Message----- > From: owner-engines-list-server@matronics.com > [mailto:owner-engines-list-server@matronics.com] On Behalf Of > DEAN PSIROPOULOS > Sent: Monday, July 24, 2006 3:14 AM > To: engines-list@matronics.com > Subject: Engines-List: Magneto P leads > > > --> Engines-List message posted by: "DEAN PSIROPOULOS" > > > I'm wondering about connecting the P leads at the magneto. > Looking at the > top of the (Slick) magneto, I removed the nut and star washer > and found an > insulating fiber washer underneath. Looking under the > washer, there is the > threaded stud which projects from a piece of white plastic > that is in turn > surrounded by a shiny piece of metal that looks like a large nut. My > question has to do with grounding the P lead out on the > magneto which is > recommended for lowest system noise. I assume that the fiber > washer is > there to keep the P lead terminal from grounding the threaded > stud to the > "shiny metal nut" that surrounds the plastic that the stud > projects out of. > If so, can I use two ring terminals on the coax, one with a > much larger ring > placed under the fiber washer which will serve as the return > grounding path > and then place a smaller ring terminal (connected to the > other wire in the > coax) on top of the fiber washer (which is on top of the larger ring > terminal contacting the shiny metal nut) under the nut that > goes on the stud > and not have to worry about magneto grounding somewhere else > on the engine? > I'm just trying to not have to strip a whole bunch of shield > off the P lead > for grounding at a separate location and this looks like it > should work but > I know nothing about magnetos so I'm not sure if my > hypothesis is correct. > I hope you can decipher what I trying to say. Thanks. > > Dean Psiropoulos > RV-6A N197DM > Stringing wire (still) > > > > > > > > > > > > > > > > ________________________________ Message 2 _____________________________________ Time: 10:01:06 AM PST US From: Matt Jurotich Subject: Engines-List: Re: Magneto P leads (DEAN PSIROPOULOS) --> Engines-List message posted by: Matt Jurotich At 02:56 AM 7/24/2006, you wrote: >* > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > >Today's complete Engines-List Digest can also be found in either of the >two Web Links listed below. The .html file includes the Digest formatted >in HTML for viewing with a web browser and features Hyperlinked Indexes >and Message Navigation. The .txt file includes the plain ASCII version >of the Engines-List Digest and can be viewed with a generic text editor >such as Notepad or with a web browser. > >HTML Version: > > >http://www.matronics.com/digest/engines-list/Digest.Engines-List.2006-07-23.html > >Text Version: > > >http://www.matronics.com/digest/engines-list/Digest.Engines-List.2006-07-23.txt >Slick mags have tow teminals one is labeled ground. You need to only >strip about 3 inches (8 cm) of shield braid. > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > Engines-List Digest Archive > --- > Total Messages Posted Sun 07/23/06: 1 > ---------------------------------------------------------- > > >Today's Message Index: >---------------------- > > 1. 10:49 PM - Magneto P leads (DEAN PSIROPOULOS) > > >________________________________ Message >1 _____________________________________ > > >Time: 10:49:15 PM PST US >From: "DEAN PSIROPOULOS" >Subject: Engines-List: Magneto P leads > >--> Engines-List message posted by: "DEAN PSIROPOULOS" > > >I'm wondering about connecting the P leads at the magneto. Looking at the >top of the (Slick) magneto, I removed the nut and star washer and found an >insulating fiber washer underneath. Looking under the washer, there is the >threaded stud which projects from a piece of white plastic that is in turn >surrounded by a shiny piece of metal that looks like a large nut. My >question has to do with grounding the P lead out on the magneto which is >recommended for lowest system noise. I assume that the fiber washer is >there to keep the P lead terminal from grounding the threaded stud to the >"shiny metal nut" that surrounds the plastic that the stud projects out of. >If so, can I use two ring terminals on the coax, one with a much larger ring >placed under the fiber washer which will serve as the return grounding path >and then place a smaller ring terminal (connected to the other wire in the >coax) on top of the fiber washer (which is on top of the larger ring >terminal contacting the shiny metal nut) under the nut that goes on the stud >and not have to worry about magneto grounding somewhere else on the engine? >I'm just trying to not have to strip a whole bunch of shield off the P lead >for grounding at a separate location and this looks like it should work but >I know nothing about magnetos so I'm not sure if my hypothesis is correct. >I hope you can decipher what I trying to say. Thanks. > >Dean Psiropoulos >RV-6A N197DM >Stringing wire (still) > > Matthew M. Jurotich e-mail mail to: phone : 301-286-5919