Today's Message Index:
----------------------
1. 07:22 AM - EGT question (rtmarshall)
2. 09:56 AM - Re: EGT question (Lynn Matteson)
3. 10:11 AM - Re: EGT question (Clint Bazzill)
4. 10:37 AM - Re: EGT question (rtmarshall)
5. 11:24 AM - Re: EGT question (rtmarshall)
6. 12:04 PM - Re: myth busters duct tape plane (jdmcbean)
7. 12:05 PM - Re: EGT question (kerrjohna@comcast.net)
8. 05:08 PM - Re: EGT question (Roger Lee)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hello KF Flyers, Food for thought? The EGT on our 80 HP Rotax goes up
when you retard the throttle to 5000 rpm and it actually pegs the
gauge.(west tach) If you run full power@ 5350 rpm it stays at 1550 to
1575 degrees. It has a new probe, plugs are good, Carbs are stock
jetting from the factory and needle jet I confirmed settings with
Lockwood, and the BING manual, It really runs great except this issue.
I do not want to cause a future problem. BTW the ship has done this from
day one, I recently confirmed this with the builder. It has 310 Hrs. It
has only one EGT probe and it is at the factory suggested location.
Right rear exhaust. Anyone have any ideas. Thanks,
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: EGT question |
Could the timing be retarded by any chance? A late timing setting
will allow fuel to be still burning as the exhaust valve.....oops! Is
this a two-stroke engine? Maybe the same laws apply? I have recently
discovered that my Jabiru engine will respond with much lower EGT's
when the timing is advanced, so a late timing should increase the
EGT's, I would think.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: down for repair....
On Oct 18, 2011, at 10:19 AM, rtmarshall wrote:
> Hello KF Flyers, Food for thought? The EGT on our 80 HP Rotax
> goes up when you retard the throttle to 5000 rpm and it actually
> pegs the gauge.(west tach) If you run full power@ 5350 rpm it stays
> at 1550 to 1575 degrees. It has a new probe, plugs are good, Carbs
> are stock jetting from the factory and needle jet I confirmed
> settings with Lockwood, and the BING manual, It really runs great
> except this issue. I do not want to cause a future problem. BTW the
> ship has done this from day one, I recently confirmed this with the
> builder. It has 310 Hrs. It has only one EGT probe and it is at the
> factory suggested location. Right rear exhaust. Anyone have any
> ideas. Thanks,
> Toodie & Bob Marshall
> Beckwourth, CA
> KF/4/1200 flying
> www.matronics.com/contribution _-
> ===========================================================
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hi Bob=2C
It sounds to me like you may be over pitched on your prop. If you can only
get 5350 with full power would indicate too much pitch. If you could chec
k your MP=2C you would find it very high.
Clint
> From: lynnmatt@jps.net
> Subject: Re: Kitfox-List: EGT question
> Date: Tue=2C 18 Oct 2011 12:52:02 -0400
> To: kitfox-list@matronics.com
>
>
> Could the timing be retarded by any chance? A late timing setting
> will allow fuel to be still burning as the exhaust valve.....oops! Is
> this a two-stroke engine? Maybe the same laws apply? I have recently
> discovered that my Jabiru engine will respond with much lower EGT's
> when the timing is advanced=2C so a late timing should increase the
> EGT's=2C I would think.
>
> Lynn Matteson
> Kitfox IV Speedster=2C taildragger
> Jabiru 2200=2C #2062
> Prince prop 64 x 30=2C P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: down for repair....
>
>
> On Oct 18=2C 2011=2C at 10:19 AM=2C rtmarshall wrote:
>
> > Hello KF Flyers=2C Food for thought? The EGT on our 80 HP Rotax
> > goes up when you retard the throttle to 5000 rpm and it actually
> > pegs the gauge.(west tach) If you run full power@ 5350 rpm it stays
> > at 1550 to 1575 degrees. It has a new probe=2C plugs are good=2C Carbs
> > are stock jetting from the factory and needle jet I confirmed
> > settings with Lockwood=2C and the BING manual=2C It really runs great
> > except this issue. I do not want to cause a future problem. BTW the
> > ship has done this from day one=2C I recently confirmed this with the
> > builder. It has 310 Hrs. It has only one EGT probe and it is at the
> > factory suggested location. Right rear exhaust. Anyone have any
> > ideas. Thanks=2C
> > Toodie & Bob Marshall
> > Beckwourth=2C CA
> > KF/4/1200 flying
> > =======================
===========
>
>
===========
===========
===========
===========
>
>
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: EGT question |
Hi Clint, I should have said the 5350 was in a climb configuration, the
issue is not at full power but when I pull back on the throttle to go to
cruise at 5000 RPM that the EGT goes up. It is a 80 HP four stroke
Rotax. thanks for the help.
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
Sent: Tuesday, October 18, 2011 10:09 AM
To: Kitfox list
Subject: RE: Kitfox-List: EGT question
Hi Bob,
It sounds to me like you may be over pitched on your prop. If you can
only get 5350 with full power would indicate too much pitch. If you
could check your MP, you would find it very high.
Clint
> From: lynnmatt@jps.net
> Subject: Re: Kitfox-List: EGT question
> Date: Tue, 18 Oct 2011 12:52:02 -0400
> To: kitfox-list@matronics.com
>
>
> Could the timing be retarded by any chance? A late timing setting
> will allow fuel to be still burning as the exhaust valve.....oops!
Is
> this a two-stroke engine? Maybe the same laws apply? I have recently
> discovered that my Jabiru engine will respond with much lower EGT's
> when the timing is advanced, so a late timing should increase the
> EGT's, I would think.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: down for repair....
>
>
> On Oct 18, 2011, at 10:19 AM, rtmarshall wrote:
>
> > Hello KF Flyers, Food for thought? The EGT on our 80 HP Rotax
> > goes up when you retard the throttle to 5000 rpm and it actually
> > pegs the gauge.(west tach) If you run full power@ 5350 rpm it
stays
> > at 1550 to 1575 degrees. It has a new probe, plugs are good, Carbs
> > are stock jetting from the factory and needle jet I confirmed
> > settings with Lockwood, and the BING manual, It really runs great
> > except this issue. I do not want to cause a future problem. BTW
the
> > ship has done this from day one, I recently confirmed this with
the
> > builder. It has 310 Hrs. It has only one EGT probe and it is at
the
> > factory suggested location. Right rear exhaust. Anyone have any
> > ideas. Thanks,
> > Toodie & Bob Marshall
> > Beckwourth, CA
> > KF/4/1200 flying
> > === Archive Search & Download, 7-Day Browse, Chat, FAQ,
>========================
>
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: EGT question |
BTW Clint: enjoyed your trip up the coast to SF Golden Gate bridge....
looked like a really nice flight...........thanks for sharing because, I
use to fly gliders at Hummingbird Haven just east of the Livermore
airport long ago. Started flying at Warm Springs (now gone) then up to
Centerville (now gone)/Fremont and then out to Livermore (now gone) The
glider guys now fly from Bryon and the Sierra's in summer. Never got
over to Half Moon Bay, but Bob did when he was instructing out of
Concord/Buchannan Airport. Appreciate the soft air...........not so in
the Sierra's! Get's wild up here.... Toodie
From: rtmarshall
Sent: Tuesday, October 18, 2011 10:34 AM
To: kitfox-list@matronics.com
Subject: Re: Kitfox-List: EGT question
Hi Clint, I should have said the 5350 was in a climb configuration,
the issue is not at full power but when I pull back on the throttle to
go to cruise at 5000 RPM that the EGT goes up. It is a 80 HP four stroke
Rotax. thanks for the help.
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
Sent: Tuesday, October 18, 2011 10:09 AM
To: Kitfox list
Subject: RE: Kitfox-List: EGT question
Hi Bob,
It sounds to me like you may be over pitched on your prop. If you
can only get 5350 with full power would indicate too much pitch. If you
could check your MP, you would find it very high.
Clint
> From: lynnmatt@jps.net
> Subject: Re: Kitfox-List: EGT question
> Date: Tue, 18 Oct 2011 12:52:02 -0400
> To: kitfox-list@matronics.com
>
<lynnmatt@jps.net>
>
> Could the timing be retarded by any chance? A late timing setting
> will allow fuel to be still burning as the exhaust valve.....oops!
Is
> this a two-stroke engine? Maybe the same laws apply? I have
recently
> discovered that my Jabiru engine will respond with much lower
EGT's
> when the timing is advanced, so a late timing should increase the
> EGT's, I would think.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: down for repair....
>
>
> On Oct 18, 2011, at 10:19 AM, rtmarshall wrote:
>
> > Hello KF Flyers, Food for thought? The EGT on our 80 HP Rotax
> > goes up when you retard the throttle to 5000 rpm and it actually
> > pegs the gauge.(west tach) If you run full power@ 5350 rpm it
stays
> > at 1550 to 1575 degrees. It has a new probe, plugs are good,
Carbs
> > are stock jetting from the factory and needle jet I confirmed
> > settings with Lockwood, and the BING manual, It really runs
great
> > except this issue. I do not want to cause a future problem. BTW
the
> > ship has done this from day one, I recently confirmed this with
the
> > builder. It has 310 Hrs. It has only one EGT probe and it is at
the
> > factory suggested location. Right rear exhaust. Anyone have any
> > ideas. Thanks,
> > Toodie & Bob Marshall
> > Beckwourth, CA
> > KF/4/1200 flying
> > === Archive Search & Download, 7-Day Browse, Chat, FAQ,
>========================
>
>
>
href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | myth busters duct tape plane |
I sent an email to Mythbusters regarding this episode.. wish we had know
sooner.
We actually had a Kitfox Series 7 here in Idaho taken out by a Bear. someone
left peaches in the baggage area.. Not a good plan when in the wilderness
areas with your aircraft. Repair was done with Duct Tape and flown out so
that a final repair could be done.
Fly Safe !!
John McBean
Ph 208.337.5111
www.kitfoxaircraft.com
"The Sky is not the Limit... It's a Playground"
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Malcolm
Brubaker
Sent: Monday, October 17, 2011 7:18 PM
Subject: Kitfox-List: myth busters duct tape plane
this wednesday, october 19th, on the Discovery chanel the myth busters are
going to duct tape a B-lite kitfox to replicate the plane that was fixed
with duct tape then flew out of the bush in alaska after being torn up by a
hungry bear.
Malcolm & Jeanne Brubaker
Michigan Sport Pilot Repair
LSRM-A, PPC, WS
Great Sails - Sailmaker
for Ultralight & Light Sport
(989)513-3022
From: "bjones@dmv.com" <bjones@dmv.com>
Sent: Monday, October 17, 2011 11:01 AM
Subject: Re: Kitfox-List: Flying the Calif Coast
One of my favorite bucket list flights was from Watkinsville up the coast,
into Half Moon Bay with Snoopy on the hanger roof, then up to the Golden
Gate and notorious prison on the island in my Kitfox IV based out of
Marathon in the Florida Keys.
Thanks for jogging the memory.
BJ
> Very Nice I love to see those videos Just wished my plane was flying had a
> small ground loop into a hanger OOPS $$$$$
>
>
> Jerry Evans
> KitfoxII
> Magalia Calif.
> N582'er'
> kitfox 555
>
> --- On Fri, 10/14/11, Clint Bazzill <clint_bazzill@hotmail.com> wrote:
>
>
> From: Clint Bazzill <clint_bazzill@hotmail.com>
> Subject: Kitfox-List: Flying the Calif Coast
> To: "Kitfox list" <kitfox-list@matronics.com>
> Date: Friday, October 14, 2011, 1:03 PM
>
>
> Hi all,
>
>
> Just a link to video I made a few years ago. First one from airplane, had
> a little audio problem but got it fixed by designing a new cable.
>
>
> The video is from Davenport, which is just north of Santa Cruz to San
> Francisco.
>
>
> Enjoy,
>
>
> Clint Bazzill Kitfox IV. 912ULS since 1999. 1600 hours.
>
>
> http://www.youtube.com/watch?v=K8pdcZcHhGg
>
>
&= Use the Matronics List Features Navigator to sp; -Matt
Dralle, List Admin.
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: EGT question |
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: EGT question |
Two things are going on. First re-pitch your prop to get between 5500-5600. This
will unload the engine and let it run a little cooler and it is less stress
on the engine. Everyone with a 912 should run at least 5500 rpm WOT. Second the
Rotax 912 series engine runs hotter down at lower rpms (4600-4900) and cooler
at the higher rpm (i.e. 5100-5300). The 912 carbs run richer at the higher rpms
and leaner in the mid range rpms.
So if you reduce the pitch to get over 5500 WOT and run at 5100-5200 in cruise
you should see lower temps.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=355482#355482
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|