Today's Message Index:
----------------------
1. 08:39 AM - compression (Thomas Lukasczyk)
2. 09:18 AM - Re: compression (linn Walters)
3. 11:13 AM - Re: compression (Bob J.)
4. 12:17 PM - Electronic Ignition (David Schaefer)
5. 12:30 PM - Re: Electronic Ignition (Konrad L. Werner)
6. 01:52 PM - Re: Electronic Ignition (Doug Weiler)
7. 04:17 PM - Re: Electronic Ignition (John Huft)
8. 04:50 PM - Re: Electronic Ignition (David Schaefer)
9. 05:06 PM - Re: Electronic Ignition (Konrad L. Werner)
10. 07:02 PM - Hangar building code issues (Jeff Point)
11. 07:08 PM - Need Users Guide for KLN 90b (Bill Schlatterer)
12. 07:47 PM - Re: Electronic Ignition (Jim Jewell)
13. 08:40 PM - Re: Electronic Ignition (Michael W Stewart)
14. 08:53 PM - Re: Electronic Ignition (Ed)
15. 09:38 PM - Electronic Ignition (mikerv6a@ao.com)
Message 1
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Hello
Yesterday, I checked my compression and found all cylinders to be 80/77 exept the
famous fourth one. My number 4 was at 80/72. The oil consumption is quite normal
at a little over one quart every 20 hours and I have not noticed any performance
losses or increased oil consumption over the last 100 hours. My number
4 is not runnig hot, nor are exhaust temperatures above normal. Head-temp is
usually around 350F and oil temperatures vary between 190F and 210F depending
on the power setting. The plugs looked good and an older test-report (done 100
hours ago) indicated all cylinders to be 80/76 exept number 3 (three) which
was at 80/74 at that time. I am confused here and it looks like things got mixed
up. Do I have to worry about the result I got? The engine was not at it's normal
operation temperature when I performed the test and I know it is supposed
to be. There was another strange effect, though. The compression-test is done
when the piston is at or near TDC. There the prop w
ill not move although the cylinder is pressurized. I read 80/72 (#4) and a little
less once I moved the prop slightly (only 1/4 inch). Does that necessarily
indicate a ring problem?
Thanks you for your opinion
Thomas, RV-4
--
Psssst! Schon vom neuen GMX MultiMessenger gehrt?
Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
Message 2
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Thomas Lukasczyk wrote:
>
>Hello
>
>Yesterday, I checked my compression and found all cylinders to be 80/77 exept
the famous fourth one. My number 4 was at 80/72. The oil consumption is quite
normal at a little over one quart every 20 hours and I have not noticed any performance
losses or increased oil consumption over the last 100 hours. My number
4 is not runnig hot, nor are exhaust temperatures above normal. Head-temp is
usually around 350F and oil temperatures vary between 190F and 210F depending
on the power setting. The plugs looked good and an older test-report (done 100
hours ago) indicated all cylinders to be 80/76 exept number 3 (three) which
was at 80/74 at that time. I am confused here and it looks like things got mixed
up. Do I have to worry about the result I got?
>
I wouldn't. The numbers will change a little no matter what you do ....
a little carbon under the seat or maybe the ring gaps are closer
together ..... who knows???
> The engine was not at it's normal operation temperature when I performed the
test and I know it is supposed to be.
>
Well, it should be. Makes it hard on the fingers getting the plugs out,
but with everything up to temp you'll see better results on the test.
Getting some oil under the rings also helps.
> There was another strange effect, though. The compression-test is done when the
piston is at or near TDC. There the prop w
> ill not move although the cylinder is pressurized. I read 80/72 (#4) and a little
less once I moved the prop slightly (only 1/4 inch). Does that necessarily
indicate a ring problem?
>
Not really. I could have said "no", but I'm no expert. The rings will
flex a little and the seal isn't as good. The very top of the cylinder
doesn't wear as much over time as the rest of the barrel. Your numbers
are fairly good, so I wouldn't worry.
Linn ..... just my opinion
>
>
>Thanks you for your opinion
>
Oh, you're quite welcome .... I have a lot!!!
do not archive
>
>Thomas, RV-4
>
>
Message 3
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Go fly it a couple of times then check it again, hot. Chances are the
compression numbers will fall in line with your other cylinders. If the
ring gaps line up then you will get a low compression reading.
Regards,
Bob Japundza
RV-6 flying F1 under const.
On 7/15/07, Thomas Lukasczyk <Lukasczyk@gmx.net> wrote:
>
>
> Hello
>
> Yesterday, I checked my compression and found all cylinders to be 80/77
> exept the famous fourth one. My number 4 was at 80/72. The oil consumptio
n
> is quite normal at a little over one quart every 20 hours and I have not
> noticed any performance losses or increased oil consumption over the last
> 100 hours. My number 4 is not runnig hot, nor are exhaust temperatures ab
ove
> normal. Head-temp is usually around 350F and oil temperatures vary betwee
n
> 190F and 210F depending on the power setting. The plugs looked good and a
n
> older test-report (done 100 hours ago) indicated all cylinders to be 80/7
6
> exept number 3 (three) which was at 80/74 at that time. I am confused her
e
> and it looks like things got mixed up. Do I have to worry about the resul
t I
> got? The engine was not at it's normal operation temperature when I
> performed the test and I know it is supposed to be. There was another
> strange effect, though. The compression-test is done when the piston is a
t
> or near TDC. There the prop w
> ill not move although the cylinder is pressurized. I read 80/72 (#4) and
a
> little less once I moved the prop slightly (only 1/4 inch). Does that
> necessarily indicate a ring problem?
>
> Thanks you for your opinion
>
> Thomas, RV-4
> --
> Psssst! Schon vom neuen GMX MultiMessenger geh=F6rt?
> Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
>
===========
===========
===========
>
>
Message 4
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| Subject: | Electronic Ignition |
I saw a brand new Lightspeed fail this weekend .. most probably due to heat
under the cowl since it eventually re-set. The aircraft had mags on one
side ... so no big deal. However, wouldn't you think that the current
generation of electronic ignitions would take into account that under the
cowl on an airplane is HOT and make some sort of consideration? It's my
understanding that the vast majority of these ignitions controllers are
installed on the fire-wall? Anyone else had any ideas, recommendations
here? I think these are great electronic ignition systems and am looking to
install a pair on an aircraft .. but it was an old fashioned MAG that got us
back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
Message 5
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| Subject: | Re: Electronic Ignition |
I believe the Klaus recommends to put the controller on the cold side of
the firewall (inside the cabin). Was this recommendation followed by the
builder?
do not archive
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 1:16 PM
Subject: RV-List: Electronic Ignition
I saw a brand new Lightspeed fail this weekend .. most probably due to
heat under the cowl since it eventually re-set. The aircraft had mags
on one side ... so no big deal. However, wouldn't you think that the
current generation of electronic ignitions would take into account that
under the cowl on an airplane is HOT and make some sort of
consideration? It's my understanding that the vast majority of these
ignitions controllers are installed on the fire-wall? Anyone else had
any ideas, recommendations here? I think these are great electronic
ignition systems and am looking to install a pair on an aircraft .. but
it was an old fashioned MAG that got us back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
Message 6
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| Subject: | Re: Electronic Ignition |
Yes, the computer must be on the cold side of the firewall!!!
Doug Weiler
N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours of use.
----- Original Message -----
From: Konrad L. Werner
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 2:29 PM
Subject: Re: RV-List: Electronic Ignition
I believe the Klaus recommends to put the controller on the cold side
of the firewall (inside the cabin). Was this recommendation followed by
the builder?
do not archive
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 1:16 PM
Subject: RV-List: Electronic Ignition
I saw a brand new Lightspeed fail this weekend .. most probably due
to heat under the cowl since it eventually re-set. The aircraft had
mags on one side ... so no big deal. However, wouldn't you think that
the current generation of electronic ignitions would take into account
that under the cowl on an airplane is HOT and make some sort of
consideration? It's my understanding that the vast majority of these
ignitions controllers are installed on the fire-wall? Anyone else had
any ideas, recommendations here? I think these are great electronic
ignition systems and am looking to install a pair on an aircraft .. but
it was an old fashioned MAG that got us back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.
com/Navigator?RV-List
href="http://forums.matronics.com">http://forums.matronics.com
Message 7
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| Subject: | Re: Electronic Ignition |
Dang, I guess I am about to fall out of the sky!
David, which model Lightspeed are we talking about?
John
Doug Weiler wrote:
> Yes, the computer must be on the cold side of the firewall!!!
>
> Doug Weiler
> N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours of use.
>
>
>
> ----- Original Message -----
> *From:* Konrad L. Werner <mailto:klwerner@comcast.net>
> *To:* rv-list@matronics.com <mailto:rv-list@matronics.com>
> *Sent:* Sunday, July 15, 2007 2:29 PM
> *Subject:* Re: RV-List: Electronic Ignition
>
> I believe the Klaus recommends to put the controller on the cold
> side of the firewall (inside the cabin). Was this recommendation
> followed by the builder?
>
> do not archive
>
> ----- Original Message -----
> *From:* David Schaefer <mailto:n142ds@gmail.com>
> *To:* rv-list@matronics.com <mailto:rv-list@matronics.com>
> *Sent:* Sunday, July 15, 2007 1:16 PM
> *Subject:* RV-List: Electronic Ignition
>
> I saw a brand new Lightspeed fail this weekend .. most
> probably due to heat under the cowl since it eventually
> re-set. The aircraft had mags on one side ... so no big
> deal. However, wouldn't you think that the current generation
> of electronic ignitions would take into account that under the
> cowl on an airplane is HOT and make some sort of
> consideration? It's my understanding that the vast majority
> of these ignitions controllers are installed on the
> fire-wall? Anyone else had any ideas, recommendations here?
> I think these are great electronic ignition systems and am
> looking to install a pair on an aircraft .. but it was an old
> fashioned MAG that got us back to the airport!
>
> --
> David W. Schaefer
> RV-6A N142DS "Geek One"
> TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
> www.n142ds.com <http://www.n142ds.com>
>
> *
>
> href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com">http://forums.matronics.com
>
> *
>
> *
>
> href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com">http://forums.matronics.com
>
> *
>
> *
>
>
> *
Message 8
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| Subject: | Re: Electronic Ignition |
No the unit was on the engine side of the firewall, where I've mostly seen
them. Room is the primary issue here. Thanks for the info. I'm wondering
about blast tubes directed on it?
DWS
On 7/15/07, John Huft <rv8tor@lazy8.net> wrote:
>
> Dang, I guess I am about to fall out of the sky!
>
> David, which model Lightspeed are we talking about?
>
> John
>
>
> Doug Weiler wrote:
>
> Yes, the computer must be on the cold side of the firewall!!!
>
> Doug Weiler
> N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours of use.
>
>
> ----- Original Message -----
> *From:* Konrad L. Werner <klwerner@comcast.net>
> *To:* rv-list@matronics.com
> *Sent:* Sunday, July 15, 2007 2:29 PM
> *Subject:* Re: RV-List: Electronic Ignition
>
> I believe the Klaus recommends to put the controller on the cold side of
> the firewall (inside the cabin). Was this recommendation followed by the
> builder?
>
> do not archive
>
> ----- Original Message -----
> *From:* David Schaefer <n142ds@gmail.com>
> *To:* rv-list@matronics.com
> *Sent:* Sunday, July 15, 2007 1:16 PM
> *Subject:* RV-List: Electronic Ignition
>
> I saw a brand new Lightspeed fail this weekend .. most probably due to
> heat under the cowl since it eventually re-set. The aircraft had mags on
> one side ... so no big deal. However, wouldn't you think that the current
> generation of electronic ignitions would take into account that under the
> cowl on an airplane is HOT and make some sort of consideration? It's my
> understanding that the vast majority of these ignitions controllers are
> installed on the fire-wall? Anyone else had any ideas, recommendations
> here? I think these are great electronic ignition systems and am looking to
> install a pair on an aircraft .. but it was an old fashioned MAG that got us
> back to the airport!
>
> --
> David W. Schaefer
> RV-6A N142DS "Geek One"
> TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
> www.n142ds.com
>
> *
>
> href="http://www.matronics.com/Navigator?RV-List" <http://www.matronics.com/Navigator?RV-List>>http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com" <http://forums.matronics.com>>http://forums.matronics.com
> *
>
> *
>
> href="http://www.matronics.com/Navigator?RV-List" <http://www.matronics.com/Navigator?RV-List>>http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com" <http://forums.matronics.com>>http://forums.matronics.com
> *
>
> *
>
> *
>
> *
>
>
> *
>
>
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
Message 9
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| Subject: | Re: Electronic Ignition |
That is not such a great location, ...even if it had blast tubes.
Computers are like brains, keep them cool so they can think!
I'd mount them inside the cool cabin, instead in the hot engine
compartment.
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 5:49 PM
Subject: Re: RV-List: Electronic Ignition
No the unit was on the engine side of the firewall, where I've mostly
seen them. Room is the primary issue here. Thanks for the info. I'm
wondering about blast tubes directed on it?
DWS
On 7/15/07, John Huft <rv8tor@lazy8.net> wrote:
Dang, I guess I am about to fall out of the sky!
David, which model Lightspeed are we talking about?
John
Doug Weiler wrote:
Yes, the computer must be on the cold side of the firewall!!!
Doug Weiler
N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours
of use.
----- Original Message -----
From: Konrad L. Werner
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 2:29 PM
Subject: Re: RV-List: Electronic Ignition
I believe that Klaus recommends to put the controller on the
cold side of the firewall (inside the cabin). Was this recommendation
followed by the builder?
do not archive
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 1:16 PM
Subject: RV-List: Electronic Ignition
I saw a brand new Lightspeed fail this weekend .. most
probably due to heat under the cowl since it eventually re-set. The
aircraft had mags on one side ... so no big deal. However, wouldn't you
think that the current generation of electronic ignitions would take
into account that under the cowl on an airplane is HOT and make some
sort of consideration? It's my understanding that the vast majority of
these ignitions controllers are installed on the fire-wall? Anyone else
had any ideas, recommendations here? I think these are great electronic
ignition systems and am looking to install a pair on an aircraft .. but
it was an old fashioned MAG that got us back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
href="http://www.matronics.com/Navigator?RV-List">
http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">
http://forums.matronics.com
href="http://www.matronics.com/Navigator?RV-List">
http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">
http://forums.matronics.com
http://www.matronics.com/Navigator?RV-List
http://forums.matronics.com
www.n142ds.com
Message 10
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| Subject: | Hangar building code issues |
I'm looking for someone with expertise on hangar building codes.
Specifically IBC 412.2.4 and how it relates to furnace installations.
Please email me at jpoint@mindspring.com.
It's RV related since I'm going to put my RV in the hangar.
Jeff Point
RV-6 flying
RV-8 building
Milwaukee
do not archive
Message 11
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| Subject: | Need Users Guide for KLN 90b |
I know this is old stuff but I am looking for a downloadable version of the
Users Guide for a KLN 90b GPS. Any help appreciated.
Thanks Bill S
7a Arkansas
Do Not Archive
Message 12
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| Subject: | Re: Electronic Ignition |
Heat might not be the only enemy here.;
If the best location (in the cabin behind firewall) is not an option,
the brain box could be shrouded inside a .020 aluminium cool box with a
blast air tube feeding it cool air.
The possibility of the introduction of humidity and whatnot being
introduced via the blast tube must be considered.
Keep in mind that the brain box was designed to be inside the cabin out
of the ravages of weather and under cowl contaminates.
It might not be completely weather and environment proof such as most
ignition cdi modules etc. that are found under the hoods of automobiles.
Take care,
Jim in Kelowna - C-GIIG - 30 hr.
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 4:49 PM
Subject: Re: RV-List: Electronic Ignition
No the unit was on the engine side of the firewall, where I've mostly
seen them. Room is the primary issue here. Thanks for the info. I'm
wondering about blast tubes directed on it?
DWS
On 7/15/07, John Huft <rv8tor@lazy8.net> wrote:
Dang, I guess I am about to fall out of the sky!
David, which model Lightspeed are we talking about?
John
Doug Weiler wrote:
Yes, the computer must be on the cold side of the firewall!!!
Doug Weiler
N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours
of use.
----- Original Message -----
From: Konrad L. Werner
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 2:29 PM
Subject: Re: RV-List: Electronic Ignition
I believe the Klaus recommends to put the controller on the cold
side of the firewall (inside the cabin). Was this recommendation
followed by the builder?
do not archive
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 1:16 PM
Subject: RV-List: Electronic Ignition
I saw a brand new Lightspeed fail this weekend .. most
probably due to heat under the cowl since it eventually re-set. The
aircraft had mags on one side ... so no big deal. However, wouldn't you
think that the current generation of electronic ignitions would take
into account that under the cowl on an airplane is HOT and make some
sort of consideration? It's my understanding that the vast majority of
these ignitions controllers are installed on the fire-wall? Anyone else
had any ideas, recommendations here? I think these are great electronic
ignition systems and am looking to install a pair on an aircraft .. but
it was an old fashioned MAG that got us back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
href="http://www.matronics.com/Navigator?RV-List">
http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">
http://forums.matronics.com
href="http://www.matronics.com/Navigator?RV-List">
http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">
http://forums.matronics.com
http://www.matronics.com/Navigator?RV-List
http://forums.matronics.com
www.n142ds.com
Message 13
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| Subject: | Re: Electronic Ignition |
I dont think so.
I ran duals ON THE FIREWALL. 1500hours no troubles. Even hit em with th
e
power washer a few times.
Mike
do not archive
"Doug Weiler"
<dcw@mnwing.org>
Sent by:
To
owner-rv-list-ser <rv-list@matronics.com>
ver@matronics.com
cc
Subj
ect
07/15/2007 04:51 Re: RV-List: Electronic Ignition
PM
Please respond to
rv-list@matronics
.com
Yes, the computer must be on the cold side of the firewall!!!
Doug Weiler
N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours of use
.
----- Original Message -----
From: Konrad L. Werner
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 2:29 PM
Subject: Re: RV-List: Electronic Ignition
I believe the Klaus recommends to put the controller on the cold side
of
the firewall (inside the cabin). Was this recommendation followed by t
he
builder?
do not archive
----- Original Message -----
From: David Schaefer
To: rv-list@matronics.com
Sent: Sunday, July 15, 2007 1:16 PM
Subject: RV-List: Electronic Ignition
I saw a brand new Lightspeed fail this weekend .. most probably due to
heat under the cowl since it eventually re-set. The aircraft had mags
on
one side ... so no big deal. However, wouldn't you think that the cur
rent
generation of electronic ignitions would take into account that under
the
cowl on an airplane is HOT and make some sort of consideration? It's
my
understanding that the vast majority of these ignitions controllers ar
e
installed on the fire-wall? Anyone else had any ideas, recommendation
s
here? I think these are great electronic ignition systems and am look
ing
to install a pair on an aircraft .. but it was an old fashioned MAG th
at
got us back to the airport!
--
David W. Schaefer
RV-6A N142DS "Geek One"
TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
www.n142ds.com
href="http://www.matronics.com/Navigator?RV-List
">http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/Navigator?RV-List
">http://www.matronics.com/Navigator?RV-List
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Message 14
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| Subject: | Re: Electronic Ignition |
I don't know about current production, but Klaus' ignitions always used
to have a port for forced air cooling to be fed with an avionics fan or
similar. Before I hogged the port on ours out to 5/8" and got a good fan
on it, it ran very warm and it did need a new power transformer after
about 700 hrs. He uses a different transformer now which is supposedly
less susceptible to heat damage, but all the same, I would put it on the
cabin side of the firewall and fan cool it if I were you.
Pax,
Ed Holyoke
Jim Jewell wrote:
>
> Heat might not be the only enemy here.;
>
> If the best location (in the cabin behind firewall) is not an option,
> the brain box could be shrouded inside a .020 aluminium cool box
> with a blast air tube feeding it cool air.
> The possibility of the introduction of humidity and whatnot being
> introduced via the blast tube must be considered.
> Keep in mind that the brain box was designed to be inside the cabin
> out of the ravages of weather and under cowl contaminates.
> It might not be completely weather and environment proof such as most
> ignition cdi modules etc. that are found under the hoods of automobiles.
>
> Take care,
>
> Jim in Kelowna - C-GIIG - 30 hr.
>
>
> ----- Original Message -----
> *From:* David Schaefer <mailto:n142ds@gmail.com>
> *To:* rv-list@matronics.com <mailto:rv-list@matronics.com>
> *Sent:* Sunday, July 15, 2007 4:49 PM
> *Subject:* Re: RV-List: Electronic Ignition
>
> No the unit was on the engine side of the firewall, where I've
> mostly seen them. Room is the primary issue here. Thanks for the
> info. I'm wondering about blast tubes directed on it?
>
> DWS
>
> On 7/15/07, *John Huft* <rv8tor@lazy8.net
> <mailto:rv8tor@lazy8.net>> wrote:
>
> Dang, I guess I am about to fall out of the sky!
>
> David, which model Lightspeed are we talking about?
>
> John
>
>
> Doug Weiler wrote:
>
>> Yes, the computer must be on the cold side of the firewall!!!
>>
>> Doug Weiler
>> N722DW, 400 hours, dual Lightspeeds with no issues in 150
>> hours of use.
>>
>>
>>
>> ----- Original Message -----
>> *From:* Konrad L. Werner <mailto:klwerner@comcast.net>
>> *To:* rv-list@matronics.com <mailto:rv-list@matronics.com>
>> *Sent:* Sunday, July 15, 2007 2:29 PM
>> *Subject:* Re: RV-List: Electronic Ignition
>>
>> I believe the Klaus recommends to put the controller on
>> the cold side of the firewall (inside the cabin). Was
>> this recommendation followed by the builder?
>>
>> do not archive
>>
>> ----- Original Message -----
>> *From:* David Schaefer <mailto:n142ds@gmail.com>
>> *To:* rv-list@matronics.com
>> <mailto:rv-list@matronics.com>
>> *Sent:* Sunday, July 15, 2007 1:16 PM
>> *Subject:* RV-List: Electronic Ignition
>>
>> I saw a brand new Lightspeed fail this weekend ..
>> most probably due to heat under the cowl since it
>> eventually re-set. The aircraft had mags on one side
>> ... so no big deal. However, wouldn't you think that
>> the current generation of electronic ignitions would
>> take into account that under the cowl on an airplane
>> is HOT and make some sort of consideration? It's my
>> understanding that the vast majority of these
>> ignitions controllers are installed on the
>> fire-wall? Anyone else had any ideas,
>> recommendations here? I think these are great
>> electronic ignition systems and am looking to install
>> a pair on an aircraft .. but it was an old fashioned
>> MAG that got us back to the airport!
>>
>> --
>> David W. Schaefer
>> RV-6A N142DS "Geek One"
>> TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
>> www.n142ds.com <http://www.n142ds.com>
>>
>>*
>>
>>href="http://www.matronics.com/Navigator?RV-List" <http://www.matronics.com/Navigator?RV-List>>
>>http://www.matronics.com/Navigator?RV-List
>>href="http://forums.matronics.com" <http://forums.matronics.com>>
>>http://forums.matronics.com
>>
>>*
>>
>>*
>>
>>href="http://www.matronics.com/Navigator?RV-List" <http://www.matronics.com/Navigator?RV-List>>
>>http://www.matronics.com/Navigator?RV-List
>>href="http://forums.matronics.com" <http://forums.matronics.com>>
>>http://forums.matronics.com
>>
>>*
>>
>>*
>>
>>
>>*
>>
>*
>
>http://www.matronics.com/Navigator?RV-List
>http://forums.matronics.com
>
>www.n142ds.com <http://www.n142ds.com>
>
>*
>
>**
>
>href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List
>href="http://forums.matronics.com">http://forums.matronics.com
>
>**
>
>*
>
>
>*
>
Message 15
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| Subject: | Electronic Ignition |
Hi all
I'm a '6A builder in Corvallis, Oregon. Long time builder, first
time poster. I happened to install my LSE module this week.
Here is the relevant text from the current edition LSE manual on
installation of the Plasma II and III modules:
"
2.4 IGNITION MODULE AND IGNITION COILS
The PLASMA CDI module should be mounted in a clean and dry place on the cold
side of the firewall. If space limitations require mounting on the engine
side of the firewall, a protective metal cover should be used to protect the
module from water/engine cleaning materials and heat. In this situation,
the module should be oriented such that the connectors are to the sides of
the plane. Air must be allowed to flow between the bottom of the module
and the mounting surface. "
Mike Linse
RV-6A finishing and finishing...
Corvallis, OR
>
> Heat might not be the only enemy here.;
>
> If the best location (in the cabin behind firewall) is not an option, the
> brain box could be shrouded inside a .020 aluminium cool box with a blast
> air tube feeding it cool air.
> The possibility of the introduction of humidity and whatnot being
> introduced via the blast tube must be considered.
> Keep in mind that the brain box was designed to be inside the cabin out of
> the ravages of weather and under cowl contaminates.
> It might not be completely weather and environment proof such as most
> ignition cdi modules etc. that are found under the hoods of automobiles.
>
> Take care,
>
> Jim in Kelowna - C-GIIG - 30 hr.
>
> ----- Original Message -----
> From: David Schaefer
> To: rv-list@matronics.com
> Sent: Sunday, July 15, 2007 4:49 PM
> Subject: Re: RV-List: Electronic Ignition
>
>
> No the unit was on the engine side of the firewall, where I've mostly
> seen them. Room is the primary issue here. Thanks for the info. I'm
> wondering about blast tubes directed on it?
>
> DWS
>
>
> On 7/15/07, John Huft <rv8tor@lazy8.net> wrote:
> Dang, I guess I am about to fall out of the sky!
>
> David, which model Lightspeed are we talking about?
>
> John
>
>
> Doug Weiler wrote:
> Yes, the computer must be on the cold side of the firewall!!!
>
> Doug Weiler
> N722DW, 400 hours, dual Lightspeeds with no issues in 150 hours of
> use.
>
>
> ----- Original Message -----
> From: Konrad L. Werner
> To: rv-list@matronics.com
> Sent: Sunday, July 15, 2007 2:29 PM
> Subject: Re: RV-List: Electronic Ignition
>
>
> I believe the Klaus recommends to put the controller on the cold
> side of the firewall (inside the cabin). Was this recommendation
> followed by the builder?
>
> do not archive
> ----- Original Message -----
> From: David Schaefer
> To: rv-list@matronics.com
> Sent: Sunday, July 15, 2007 1:16 PM
> Subject: RV-List: Electronic Ignition
>
>
> I saw a brand new Lightspeed fail this weekend .. most probably
> due to heat under the cowl since it eventually re-set. The
> aircraft had mags on one side ... so no big deal. However,
> wouldn't you think that the current generation of electronic
> ignitions would take into account that under the cowl on an
> airplane is HOT and make some sort of consideration? It's my
> understanding that the vast majority of these ignitions
> controllers are installed on the fire-wall? Anyone else had any
> ideas, recommendations here? I think these are great electronic
> ignition systems and am looking to install a pair on an aircraft
> .. but it was an old fashioned MAG that got us back to the
> airport!
>
> --
> David W. Schaefer
> RV-6A N142DS "Geek One"
> TMX-IOF360 FADEC, Hartzell Blended Airfoil, GRT EFIS
> www.n142ds.com
>
>
> href="http://www.matronics.com/Navigator?RV-List">
> http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com">
> http://forums.matronics.com
>
>
> href="http://www.matronics.com/Navigator?RV-List">
> http://www.matronics.com/Navigator?RV-List
> href="http://forums.matronics.com">
> http://forums.matronics.com
>
>
> http://www.matronics.com/Navigator?RV-List
> http://forums.matronics.com
> www.n142ds.com
>
>
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