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
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| Subject: | 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
--> <barriegittens@yahoo.com>
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
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| Subject: | 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 <JohnCiolino@carolina.rr.com> 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
>
> --> <barriegittens@yahoo.com>
>
> 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
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| Subject: | Re: magneto problems |
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
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| Subject: | Re: magneto problems |
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
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| Subject: | Re: 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>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 . . .
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