Today's Message Index:
----------------------
1. 08:41 AM - Re: Jabiru Magneto Wiring (Robert L. Nuckolls, III)
2. 09:48 AM - MaxPulse warm-up and pulse rates suitability for HID (XeVision)
3. 12:26 PM - Re: Jabiru Magneto Wiring (messydeer)
4. 12:43 PM - Re: Re: Jabiru Magneto Wiring (Robert L. Nuckolls, III)
Message 1
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| Subject: | Re: Jabiru Magneto Wiring |
At 06:48 PM 11/5/2009, you wrote:
>
>Hello!
>
>The Jabiru manual doesn't say much about the mag wiring. On each of
>my coils, there is a 1/4" faston tab. I have 20awg shielded wire for
>each ignition. I've read through the Book and understand when the
>mags are ungrounded, they are hot. Flipping the mag switch off
>completes the ground ground and kills the mag.
>
>I've attached a doc that shows what I understand and what I don't.
>Quotes are from Bob's book in Note 3 of the Z appendix, I believe:
>
>1. "Attach the shield to one and only one switch terminal at the
>cockpit end..."
>
>How do I do this? I can strip off the outer insulation and expose
>the braided shield. For a 20awg wire, using a 16awg stripper is
>about right. That's about as far as my brain will take me. Seems
>like I would splice the outer braid to a wire, and connect that wire
>via faston to terminal #2 of the switch. Another faston would go on
>the inner wire and connect to terminal #3. I just don't know how.
>
>2. "Attach the shield to engine ground at the magneto end."
>
>The drawing shows shield going to one spot on the ignition and the
>inner wire going to another. I have just the faston tab of the coil.
>How is this done?
See:
http://aeroelectric.com/articles/shldwire/shldwire.html
Put faston female on engine end of center conductor
and install on magneto coil tab. Put ring terminal on
engine end shield and take to crankcase ground via
mounting bolt (on ignition coil?). If necessary, slice
onto the shield to extend to nearest practical mounting
bolt. NOTE "mounting bolt" means some fastener that holds
detail parts and/or accessories on the engine. This does
not mean any bolt with a critical torque value
for the maintenance of structural integrity. I
once had a guy remove a head-bolt to "ground" some
wire to his engine!
Attach other end of shielded wire to switch. Prepare
ends the same way. Install fast-on or ring terminals
as appropriate. Connect so that the wire and shield
are connected to each other when the ignition switch
is closed (OFF).
Bob . . .
---------------------------------------
( It's MATRONICS FUND RAISER MONTH! )
( Do your part to keep this marvelous )
( tool sharp and available to all our )
( brothers in the OBAM aviation )
( community. )
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Message 2
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| Subject: | MaxPulse warm-up and pulse rates suitability for HID |
http://forum.matronics.com/viewtopic.php?t=62495
Read the 2nd 1/2 of this thread.
--------
LED still has a long way to go to compete with HID as a landing light. This is
true in terms of total lumens and reach (distance).
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=271374#271374
Message 3
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| Subject: | Re: Jabiru Magneto Wiring |
Thanks, for running down that article, Bob. Not sure how I missed it. Nice, easy
to understand article.
--------
Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=271393#271393
Message 4
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| Subject: | Re: Jabiru Magneto Wiring |
At 06:56 PM 11/5/2009, you wrote:
>
>I also just read this searching through the Yahoo Jab group:
>
>"...at the switch end,
>you should connect both L and R shield grounds together (but not to
>anything else but the switch), for redundancy, in case of a break in
>one of the ground leads, you can still shut off the engine. This
>should not cause a ground loop/noise problem..."
This refers to the O-L-R-B-S key-switch and is not
applicable to the use of toggles and push-button.
Bob . . .
---------------------------------------
( It's MATRONICS FUND RAISER MONTH! )
( Do your part to keep this marvelous )
( tool sharp and available to all our )
( brothers in the OBAM aviation )
( community. )
---------------------------------------
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