bobbyhester(at)charter.ne
Guest
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 Posted: Sun Nov 19, 2006 5:29 pm Post subject: Fwd: Re: [OhioValleyRVators] Re: 1st time engine start -- k |
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--- In OhioValleyRVators(at)yahoogroups.com, Bobby Hester
<bobbyhester(at)...> wrote:
Below is what I used to wire my key switch to work with my ignition
setup. I have one mag LH and one Lightspeed Ignition RH. Today I checked
my mag to insure it was grounding properly. What I found out and you'll
read about below is this. If you check the mag lead wire while it is
disconnected from the mag you will see that when the key is off and when
it is turned to right, the lead is grounded. But the kicker here is that
when you connect the lead to the mag and then check the stud on the mag
this is what you will find. Key off mag is grounded, key turned to right
mag is grounded, key turned to left the mag is still grounded. You wound
think that it should not be, so that will make you think that it is not
going to work, but do an engine run up and then a mag check and you will
find that everthing works like it should. As far as timing the mag and
timing the LSI I just followed the directions for each one.
Message: #127548
From: Tim Olson <Tim(at)MyRV10.com>
Date: Jul 05, 2006
Subject: Lightspeed with Keyswitch and 1 Mag Wiring
<http://www.matronics.com/searching/getmsg_script.cgi?INDEX=162052513?KEYS=lightspeed_with_keyswitch?LISTNAME=RV?HITNUMBER=1?SERIAL=1926137529?SHOWBUTTONS=NO>
This is a repost of previous info. I had a builder ask me about it
and I couldn't find it in the archives well, so I thought I'd resend
it with a good subject line. ----- Wiring a Keyswitch Ignition -
Lightspeed Plasma III/II+ ignition and a Mag Another non-RV10
builder, Dave Sundberg passed this on to me previously, and I wired
mine this way and it indeed works fine. It does seem a bit like
black magic, but seeing as it works fine I won't be complaining.
Test it out before and after you run the engine, but it should work
fine. The configuration is a Mag on the Left side, feeding the lower
plugs, and a Lightspeed Plasma III (or II+) feeding the top plugs as
the Right system. Note that allthough Lightspeed calls it a
keyswitch "Option", it's always on the system, just optional to
connect. * The P-Lead from the Mag goes to the L-Terminal on the
Switch with the shield connected to the GRN terminal on the mag and
not connected to anything on the switch end. * The P-Lead from the
LS (Pin 1) goes to the R-Terminal on the switch and the shield (Pin
9) goes to the GRN-Terminal in the center of the switch. * Do not
connect the jumper from the R-Term to the GRN-Terminal next to it. *
Do not connect the center GRN-Terminal on the switch to aircraft
ground. Both ignitions are grounded out with the switch in the OFF
position. Dave had been flying and it was working for him. I am
flying too and it's working great for me. I had previously spent
time hooking mine up and ohming things out and was confused as heck.
I also was confused in that the P-Lead on the mag is seemingly
shorted to ground even with the wire disconnected, so I couldn't
easily tell that it would be grounded by the switch. (Turns out this
is normal) If you hook it all up, except for the mag P-Lead, you can
indeed see that they ground the way their supposed to by using your
ohmmeter. I also have this posted on my Electrical Tips section on
my site. Tim -- Tim Olson - RV-10 N104CD - Flying
------
Surfing the web from my laptop in Hopkinsville, KY
Visit my RV7A site: http://www.geocities.com/hester-hoptown/RVSite/
Tom Webster wrote:
| Quote: | Bobby,
I checked your website and see you got
your engine timed and running.
Great news, I know it was a big deal for me.
I didn't want to bother you a few days ago
when you were having timing problems, but when
you find the time I would like to know more
about your ignition setup.
I couldn't find any details on your website.
I have two mags, but am considering installing
one electronic ignition in the future. My engine
has too much power now, but feel variable timing
might buy some fuel economy.
I am also following Nordo's ignition problems.
I feel others might also like to know about
your ignition setup, so have kept this on our
Yahoo list.
Thanks,
Tom Webster
--- In OhioValleyRVators(at)yahoogroups.com
<mailto:OhioValleyRVators%40yahoogroups.com>, Bobby Hester
<bobbyhester(at)> wrote:
>
> Even for the first engine start? I am planning on starting the
engine
> and running it for about 5 min. to insure no leaks and that
everything
> works.
>
> ------
> Surfing the web from my laptop in Hopkinsville, KY
> Visit my RV7A site: http://www.geocities.com/hester-hoptown/RVSite/
<http://www.geocities.com/hester-hoptown/RVSite/>
>
>
>
> Al Grajek wrote:
>
> > -Get a copy of Lycomings "key reprints". Its free on the website.
It
> > explains all the ground run, and break in procedures very well.
make
> > sure you DON'T run it on the ground with the cowling off.
> > Nordo
> >
> > -- In OhioValleyRVators(at)yahoogroups.com
<mailto:OhioValleyRVators%40yahoogroups.com>
> > <mailto:OhioValleyRVators%40yahoogroups.com>, Bobby Hester
> > <bobbyhester(at)>
> > wrote:
> > >
> > > I'm hoping to start my XP O-360 engine for the first time
Wedensday.
> > I
> > > remember some discussion a while back about ground runs. This
is a
> > new
> > > engine and I know that when I fly it I should fly it fast til
the
> > rings
> > > seat and oil consumption stabilizes. I think someone said that
during
> > > the inital ground runs that you should keep the cylinder temps
below
> > a
> > > certain temp untill it flys. So what is that temp?
> > >
> > > --
> > > ------
> > > Surfing the web from my laptop in Hopkinsville, KY
> > > Visit my RV7A site: http://www.geocities.com/hester-
<http://www.geocities.com/hester->
hoptown/RVSite/
> > <http://www.geocities.com/hester-hoptown/RVSite/
<http://www.geocities.com/hester-hoptown/RVSite/>>
> > >
> >
> >
>
>
>
> [Non-text portions of this message have been removed]
>
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[Non-text portions of this message have been removed]
--- End forwarded message ---
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