Today's Message Index:
----------------------
0. 12:06 AM - Make Sure You're Listed! List of Contributors Published Dec 1! (Matt Dralle)
1. 02:13 PM - Rotax 582 & Oil% (Michel Dierick)
2. 02:25 PM - Re: O-320 (kitfoxjunky)
3. 06:34 PM - Re: Rotax 582 & Oil% (Tom Jones)
4. 07:24 PM - Re: Rotax 582 & Oil% (Noel R. C. Loveys)
5. 08:35 PM - Re: Rotax 582 & Oil% (Noel R. C. Loveys)
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| Subject: | Make Sure You're Listed! List of Contributors Published |
Dec 1!
Dear Listers,
The List of Contributors (LOC) is just around the corner! On December 1st I post
a list of everyone that so generously made a Contribution to support the Lists.
Its my way of publicly thanking everyone that took a minute to show their
appreciation for the Lists.
As a number of people have pointed out in their Contribution comments, these Lists
seems at least as valuable of a building/flying/recreating tool as a typical
your magazine subscription! And how interactive is a magazine, after all?
Won't you take minute and assure that your name is on the upcoming LOC? Tell others
that you appreciate the Lists. Making a Contribution to support the Lists
is fast and easy using your Visa, MasterCard, or Paypal account:
http://www.matronics.com/contribution
Or, by dropping a personal check in the mail to:
Matronics / Matt Dralle
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(Please include your email address on the check!)
I would like to thank everyone that has so generously made a Contribution thus
far during this year's List Fund Raiser! Remember that its YOUR support that keeps
these Lists running and improving! Don't forget to include a little comment
about how the Lists have helped you!
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Rotax 582 & Oil% |
Hi,
I tried to make a beautiful flight last Saturday but it turned out completely different.
1. It was quit cold. The mechanic on my airfield advised me to put tape over the
radiator in order to prevent too much cooling. (Radiator was covered for 70%...).
2. Oil-mixture in the fuel. He proposed 1,8% instead of 2%. What I did.
After all, he is the expert (was in a previous young life also mechanic on two-stroke
competition motorbikes) and I'm completely new and unexperienced in two-stroke
engines. (In my country, we say I'm green behind my ears)
The flight became a complete horror.
On take-off, the engine didn't reach 6500rpm full power, just 6000rpm
It wasn't running like a Swiss watch but made a lot of vibrations.
My Kitfox climbed slowly and after reaching 2000ft altitude, I began to smell molten
plastic AND the engine started to cough 3-4 times !
I quickly scanned my instruments and saw the water temp was rising to 115C...
Damned !!
I immediately reduced power, went into a gently dive and made a emergency landing
on my airfield. During descent, I saw the water temp
becoming normal (85C).
It was obvious that the temp was a direct result of too much tape over the radiator.
But was caused the engine to cough ? Was it the high temperature ? Is
it the oil mixture ?
Somebody can help me ?
Greetz,
Michel
--------
Flying, yes, but fly safely
Michel "TheDailyFly"
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=148661#148661
Message 2
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No.
Gary Walsh
KF IV Anphib 912S
C-GOOT
www.decisionlabs.com/kitfox
do not archive
"rich smith" <richs@presys.com>
Sent by: owner-kitfox-list-server@matronics.com
11/23/2007 11:39 PM
Please respond to kitfox-list
To: <kitfox-list@matronics.com>
cc:
Subject: Kitfox-List: O-320
Will an 0-320 work on a series 5. Rich
Message 3
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| Subject: | Re: Rotax 582 & Oil% |
Michel Dierick wrote:
> Hi,
>
>
> It was obvious that the temp was a direct result of too much tape over the radiator.
But was caused the engine to cough ? Was it the high temperature ? Is
it the oil mixture ?
>
> Somebody can help me ?
>
> Greetz,
> Michel
Michel, I don't think the 1.8% oil mixture would cause what you describe. I am
not familiar with the water cooled rotax two strokes, just the air cooled ones,
so I don't know what effect the high water temperature has. Cold air results
in the engine running more lean than in warm air. Pull your sparkplugs out
and post here what they look like and I am sure you will get some help from the
582 flyers.
For what it is worth, the temperature here has been in the low to mid 20 degrees
F for a few days. When I checked my Kitfox today there was ice in the panel
tank vent line.
--------
Tom Jones
Classic IV, Phase one
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=148702#148702
Message 4
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| Subject: | Rotax 582 & Oil% |
It sounds like you had too much of the radiator covered. You already
guessed that.
One of the finicky things about two stroke engines is they have to have the
mixture just about spot on. Lower the temperature of the air 40 to 50 F and
you will find the engine runs too lean. This is because there is actually
more air and O2 getting into the engine at the lower temperatures. For this
reason most of the guys and gals will lift the needles in their carbs a
notch this has the effect of enrichening the mixture at less than full
throttle. This is usually enough correction but you may have to swap the
main jets for a larger size. Try http://www.800-airwolf.com/articles.htm for
jet sizes. http://www.ultralightnews.ca/ definitely has a chart of jets
etc. for different field altitudes and temperatures.
Finally Dave Fisher on this group does hundreds of hours a year on a R582.
Contact him or Bob Robertson also on this group to get the straight dope on
the mixture.
Noel
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-
> server@matronics.com] On Behalf Of Michel Dierick
> Sent: Monday, November 26, 2007 6:42 PM
> To: kitfox-list@matronics.com
> Subject: Kitfox-List: Rotax 582 & Oil%
>
<michel.dierick@skynet.be>
>
> Hi,
>
> I tried to make a beautiful flight last Saturday but it turned out
completely different.
>
> 1. It was quit cold. The mechanic on my airfield advised me to put tape
over the
> radiator in order to prevent too much cooling. (Radiator was covered for
70%...).
> 2. Oil-mixture in the fuel. He proposed 1,8% instead of 2%. What I did.
> After all, he is the expert (was in a previous young life also mechanic on
two-stroke
> competition motorbikes) and I'm completely new and unexperienced in
two-stroke
> engines. (In my country, we say I'm green behind my ears)
>
> The flight became a complete horror.
>
> On take-off, the engine didn't reach 6500rpm full power, just 6000rpm
> It wasn't running like a Swiss watch but made a lot of vibrations.
> My Kitfox climbed slowly and after reaching 2000ft altitude, I began to
smell molten
> plastic AND the engine started to cough 3-4 times !
>
> I quickly scanned my instruments and saw the water temp was rising to
115C...
> Damned !!
>
> I immediately reduced power, went into a gently dive and made a emergency
landing on
> my airfield. During descent, I saw the water temp
> becoming normal (85C).
>
> It was obvious that the temp was a direct result of too much tape over the
radiator.
> But was caused the engine to cough ? Was it the high temperature ? Is it
the oil
> mixture ?
>
> Somebody can help me ?
>
> Greetz,
> Michel
>
> --------
> Flying, yes, but fly safely
>
> Michel "TheDailyFly"
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=148661#148661
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Rotax 582 & Oil% |
I just thought of one other thing.... If you are flying with ethanol
contaminated gasoline and pre mixing the gas you may also be experiencing a
phase separation of the gas and oil at the cooler temperatures. Best bet is
not to use any gas contaminated with Ethanol. If you have to use Ethanol
contaminated fuel, also use oil injection.
Noel
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-
> server@matronics.com] On Behalf Of Michel Dierick
> Sent: Monday, November 26, 2007 6:42 PM
> To: kitfox-list@matronics.com
> Subject: Kitfox-List: Rotax 582 & Oil%
>
<michel.dierick@skynet.be>
>
> Hi,
>
> I tried to make a beautiful flight last Saturday but it turned out
completely different.
>
> 1. It was quit cold. The mechanic on my airfield advised me to put tape
over the
> radiator in order to prevent too much cooling. (Radiator was covered for
70%...).
> 2. Oil-mixture in the fuel. He proposed 1,8% instead of 2%. What I did.
> After all, he is the expert (was in a previous young life also mechanic on
two-stroke
> competition motorbikes) and I'm completely new and unexperienced in
two-stroke
> engines. (In my country, we say I'm green behind my ears)
>
> The flight became a complete horror.
>
> On take-off, the engine didn't reach 6500rpm full power, just 6000rpm
> It wasn't running like a Swiss watch but made a lot of vibrations.
> My Kitfox climbed slowly and after reaching 2000ft altitude, I began to
smell molten
> plastic AND the engine started to cough 3-4 times !
>
> I quickly scanned my instruments and saw the water temp was rising to
115C...
> Damned !!
>
> I immediately reduced power, went into a gently dive and made a emergency
landing on
> my airfield. During descent, I saw the water temp
> becoming normal (85C).
>
> It was obvious that the temp was a direct result of too much tape over the
radiator.
> But was caused the engine to cough ? Was it the high temperature ? Is it
the oil
> mixture ?
>
> Somebody can help me ?
>
> Greetz,
> Michel
>
> --------
> Flying, yes, but fly safely
>
> Michel "TheDailyFly"
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=148661#148661
>
>
>
>
>
>
>
>
>
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