Today's Message Index:
----------------------
1. 08:52 AM - Re: P-leads connector (Robert L. Nuckolls, III)
2. 09:58 AM - Re: P-leads connector (fasilpereira)
3. 02:31 PM - Re: P-leads connector (skywagon185guy)
4. 02:31 PM - Wire stripper deal . . . (Robert L. Nuckolls, III)
Message 1
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| Subject: | Re: P-leads connector |
At 05:41 PM 4/7/2022, you wrote:
><fasilpereira@yahoo.com>
>
>Hi,
>
>I'm installing my engine and I like to have connectors everywhere to
>make it easier to remove and install the engine.
>
>What kind of connectors would be recommended on the Mags P-leads?
>
>I was considering a CPC or maybe a Seal-all, but since the wires are
>shielded, I'm not sure if connecting the shields though these
>connectors will be effective supressing the ignition noise.
>
>Thank you,
>
>Fabricio
Not recommended. Ignition 'noises' will not be
materially affected by breaking the p-leads with
a connector . . . but it DOES introduce risk
of discontinuity by reason of 6 new joints added
to the magneto control system. Joints that add
very low if any utility to maintenance of the
airplane.
The amount of wire from firewall to rear of mags
approaches trivial . . . easily managed during
engine remove/replace operations.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 2
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| Subject: | Re: P-leads connector |
Hi Bob,
Removing/reinstalling the wires to the mags really don't bother me. I just don't
like to mess with cables that are beautifully routed and properly supported.
Since my Rotax ignition system is designed that way by the factory (and I really
like that!), I was considering that option.
But you are right, it will affect the reliability of the system. It may not be
a problem on the Rotax because it will not start if turned by hand with the ignition
not grounded, but it may be risky on a conventional Magneto engine.
Thank you for the advice!
Fabricio
--------
Fabricio Pereira
Engineer / Pilot
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=506513#506513
Message 3
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| Subject: | Re: P-leads connector |
P- Leads .....
Fabricio,
Do use Bob's suggestion about using a solid connection.
An added detail is wire it knowing that engine "Shake" is hard on the
connection especially it you have used too short of a P-lead harness.
Leave it long enough to secure well but tolerate engine movement during
start and stop periods. The extra length will allow you to repair the
P-lead in case future vibration breaks the lead at the mag.
D
On Fri, Apr 8, 2022 at 8:53 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 05:41 PM 4/7/2022, you wrote:
>
> fasilpereira@yahoo.com>
>
> Hi,
>
> I'm installing my engine and I like to have connectors everywhere to make
> it easier to remove and install the engine.
>
> What kind of connectors would be recommended on the Mags P-leads?
>
> I was considering a CPC or maybe a Seal-all, but since the wires are
> shielded, I'm not sure if connecting the shields though these connectors
> will be effective supressing the ignition noise.
>
> Thank you,
>
> Fabricio
>
>
> Not recommended. Ignition 'noises' will not be
> materially affected by breaking the p-leads with
> a connector . . . but it DOES introduce risk
> of discontinuity by reason of 6 new joints added
> to the magneto control system. Joints that add
> very low if any utility to maintenance of the
> airplane.
>
> The amount of wire from firewall to rear of mags
> approaches trivial . . . easily managed during
> engine remove/replace operations.
>
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
Message 4
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| Subject: | Wire stripper deal . . . |
Was in Harbor Freight yesterday and spotted an el cheapo
wire stripper that was interesting. This QUINN product uses
a solid rivet in the pivot point and a handier travel
stop to set wire gage.
Bought one and hauled it home. Does a really nice job
and with the solid shaft, more likely to stay tight
with age/use.
The el-Cheeso design has been around for decades and
I have a few of them . . . which I'm going to pitch
and replace. The $5 HF offer is about 1/2 that of
offers on eBay, et. als.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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