REFLECTOR: LIGHTSPEED IGNITION PROBLEM
dandemitchell at earthlink.net
dandemitchell at earthlink.net
Sun Feb 27 16:45:08 CST 2005
>From a safety standpoint, I would think two dissimilar units
(manufacturers) would be the best protection. I don't know how these units
breakdown and there should be some information available but where? It also
would seem wise to have a health monitor circuit within the ignition module
to warn of impending problems, something NASA and the rest of the aerospace
industry are clamoring for. In the case of two similar units you could say
that the odds are against both breaking down in close proximity in time,
but people spend Millions of dollars in Vegas every year just to prove the
odds are wrong. Now what was the name of the other company again?
Ed
> [Original Message]
> From: Scott Derrick <scott at tnstaafl.net>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Date: 2/27/2005 10:19:20 AM
> Subject: Re: REFLECTOR: LIGHTSPEED IGNITION PROBLEM
>
> As a counter point, I have a LSI, crank mounted pickup.
>
> Been reliable for 400+ hours and works great.. Mine is mounted on teh
> firewall, cabin side on small rubber standoffs.
>
> Scott
>
> davedent at comcast.net wrote:
>
> > We had two of these moduls fail on us on our Cozy IV> We found that
> > first the halograph pickups failed at the aluminum plate that spins
> > with the magnet. Very poorly made. Then we found the computer moduls
> > fail with vibration because the components are board mounted. We had
> > two components on the boards fail. Look right in the middle of the
> > large coil on the board. You will find it burnt. As well smell it to
> > see if you can smell anything burnt. This is how I found mine bad.
> > They replaced them with no problem. They are not just made to take
> > some of the punishment that they get.
> > Also check for a short in the coax cable going to the coils.
> > Disconnect at the coil and check across the B&C connector. We have
> > lost every one of our cables. If you have one plug wire come loose
> > during flight it can and will blow a coil or even two. It tries
> > to jump the plug and it can blow the computer or the coils. If a
> > direct short happens it should blow a fuse before blowing the
> > computer. So look for a loose wire to the plugs as well. With his
> > system there are way to many things that can go wrong. And shut down
> > the whole system.
> > I would never buy another one with the problems we have had. I found
> > the Jeff Rose unit gave me no problems at all in my ten years plus
> > that I flew them. But he don't make them for the six cylinders and
> > don't sell them at all anymore.
> > I will be testing the prototype for the Emag on the six cylinder units
> > sometime this summer. Hopefully they work as good as they say.
> >
> >
> > -------------- Original message --------------
> >
> > > No matter where I plug it in, left or right ... it trips the
> > breaker. And when
> > > I plug the good one into the other side ... it does NOT trip the
> > breaker. So,
> > > it must be the module.
> > >
> > > ________________________________
> > >
> > > From: reflector-bounces at tvbf.org on behalf of Randy Wharton
> > > Sent: Sat 2/26/2005 1:08 PM
> > > To: 'Velocity Aircraft Owners and Builders list'
> > > Subject: RE: REFLECTOR: LIGHTSPEED IGNITION PROBLEM
> > >
> > >
> > > The first thing I would check, Tom, is the breaker. Maybe the
> > ignition module is
> > > ok.
> > >
> > >
> > > ________________________________
> > >
> > > From: reflector-bounces at tvbf.org
> > [mailto:reflector-bounces at tvbf.org] On Behalf
> > > Of Tom Martino
> > > Sent: Saturday, February 26, 2005 3:06 PM
> > &! gt; To: reflector at www.tvbf.org
> > > Subject: REFLECTOR: LIGHTSPEED IGNITION PROBLEM
> > >
> > > My first major squawk came yesterday while coming in for the
> > final landing of
> > > the day. The left Lightspeed ignition module simply popped a
> > breaker.
> > >
> > > I began troubleshooting today and verified that there are no
> > shorts or problems
> > > with the wiring. And before this the engine purred perfectly.
> > >
> > > Its this simple: when I plug in the left module -- it pops the
> > breaker.
> > >
> > > This concerns me a bit, since the modules don't have but a dozen
> > hours on them.
> > > Has anyone ever had such a failure? For no apparent reason?
> > >
> > > I looked inside the module and it is as clean as a whistle ...
> > no burnt traces,
> > > no foreign objects, no bare wires, etc.
> > >
> > > I had them mounted on the cabin side of the firewall, just above
> > the main spar.
> > > They were not too cold, nor too hot ... and I! don't believe
> > there is enough
> > > vibration there to affect the solid state components ..
> > >
> > > BUT HEY ... SOMETHING WENT WRONG!!??
> > >
> > > Any ideas. I will be contacting Klaus.
> > >
> >
> >
> > ------------------------------------------------------------------------
> >
> > Subject:
> > RE: REFLECTOR: LIGHTSPEED IGNITION PROBLEM
> > From:
> > "Tom Martino" <tmartino at troubleshooter.com>
> > Date:
> > Sat, 26 Feb 2005 20:41:23 +0000
> > To:
> > "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> >
> > To:
> > "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> >
> >
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> >------------------------------------------------------------------------
> >
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