---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 05/20/17: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:52 AM - Re: magneto problems (John Ciolino) 2. 06:49 AM - Re: magneto problems () 3. 09:57 AM - Re: magneto problems (barrie) 4. 01:20 PM - Re: magneto problems (barrie) 5. 01:38 PM - Re: Tie wrapping connectors closed (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 02:52:41 AM PST US From: "John Ciolino" Subject: RE: AeroElectric-List: magneto problems Barrie, You probably used shielded wire for the P-lead. Check that the shield wire is not touching the terminal. John Ciolino Bearhawk Patrol -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of barrie Sent: Friday, May 19, 2017 8:14 PM Subject: AeroElectric-List: magneto problems --> Hi, I have just finished an engine install in my homebuilt and have a problem with the Mags(probably of my own doing). After starting and checking for mag a drop, the left mag somehow appears to be grounded. The engine starts ok and the left mag has the impulse so I am assuming that it was working alright to begin with. Also the right one is working just fine. [Question] I am sure that I have overlooked something but just haven't been able to figure it out. Does anybody have the magic solution? Thanks Barrie Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469448#469448 ________________________________ Message 2 _____________________________________ Time: 06:49:33 AM PST US From: Subject: RE: AeroElectric-List: magneto problems It can be difficult to time a mag with an impulse coupling. The impulse coupling must be disengaged or the timing will be incorrect. You should turn the prop in direction of rotation enough to hear the coupling snap. Then you can turn backwards to set the timing advance but not so much to reset the impulse coupling. jrh ---- John Ciolino wrote: > > Barrie, > > You probably used shielded wire for the P-lead. Check that the shield wire > is not touching the terminal. > > John Ciolino > Bearhawk Patrol > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of barrie > Sent: Friday, May 19, 2017 8:14 PM > To: aeroelectric-list@matronics.com > Subject: AeroElectric-List: magneto problems > > --> > > Hi, I have just finished an engine install in my homebuilt and have a > problem with the Mags(probably of my own doing). After starting and checking > for mag a drop, the left mag somehow appears to be grounded. The engine > starts ok and the left mag has the impulse so I am assuming that it was > working alright to begin with. Also the right one is working just fine. > [Question] I am sure that I have overlooked something but just haven't been > able to figure it out. Does anybody have the magic solution? > Thanks > Barrie > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=469448#469448 > > > > > > > > > > > > > > ________________________________ Message 3 _____________________________________ Time: 09:57:28 AM PST US Subject: AeroElectric-List: Re: magneto problems From: "barrie" Just got back from the aircraft. Timing is on the #1 compression stroke and the p leads are not grounding at the terminals. I'm just wondering if the engine would start right up on the right mag and the left one isn't working at all [Question] Thinking back when we originally started the engine it fired right up but after going over the system I did put the bridge in place to ground the right mag when starting. The next startup did take a bit of cranking and I think that it caught just when the starter was released(not sure about that). I guess what I am asking is would the engine start even without impulse. If not I will still be scratching my head. Barrie Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469463#469463 ________________________________ Message 4 _____________________________________ Time: 01:20:41 PM PST US Subject: AeroElectric-List: Re: magneto problems From: "barrie" Hi Kelly & John, Got it :D Had a short on the p lead where it enters the mag. The wire was exposed and grounding on the shield. Thank's for the input. Barrie Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469465#469465 ________________________________ Message 5 _____________________________________ Time: 01:38:54 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Tie wrapping connectors closed At 07:47 PM 5/19/2017, you wrote: >Sebastien; > >Those are "standard" thermocouple plugs and sockets which are >assembled using hollow tubular rivets. The installer in this case >has taken advantage of those hollow rivets to secure the male/female >connector halves to each other with tie wraps. This particular style >of connector uses relatively low pressure contacts and are fairly >easily disconnected as they do not afford must resistance to >separation so the tie wraps are probably good insurance. Kink below >is one source for these. > >https://tinyurl.com/m98tjqe > >For use in an "ignition system" higher pressure, more positive, >connectors such as PIDG style would be advisable. > >Bob McC Agreed. Additionally, the wire-to-connector fastening is accomplished with little screws and clamp plates. See: http://tinyurl.com/lvu596p I wouldn't use these for anything other than their intended purpose . . . Bob . . . ------------------------------------------------------------------------------------- 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.