Today's Message Index:
----------------------
1. 05:13 AM - Re: Ethanol? (dave)
2. 06:36 AM - Re: Re: Ethanol? (Noel Loveys)
3. 06:58 AM - Re: Re: Ethanol?Ethanol? (Chuck Popenoe)
4. 12:33 PM - Re: Re: Ethanol?Ethanol? (Noel Loveys)
5. 01:41 PM - Re: Re: Ethanol?Ethanol? (Ted Palamarek)
6. 02:59 PM - Re: Re: Ethanol?Ethanol? (Guy Buchanan)
Message 1
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> Our engines don't require high octane fuel but I'm sure it doesn't hurt.
Rotax 447/503/532/582 912 UL can run fine on reg gas assuming it not over a
few months old. gas will lose a bit of octane over time as well if you pre mix
it it can lose a bit more. These are NOT high compression or high performance
engines the way we are set up to run them. My current 582 in my Kitfox has
over 460 hours on it in last 23 months running 98% reg gas a few time av gas,marine
gas(who know what is was) Engine has Never been apart. Changed plugs 3 times
now. Just put in 4th set a few weeks ago. Working well but my disclaimer
is that it is on borrowed time and could fly apart at anytime even as soon as
my next flight.
--------
Rotax Dealer, Ontario Canada
Flying Videos and Kitfox Info
http://www.cfisher.com/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=185595#185595
Message 2
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Dave:
I have no doubt you are intentionally pushing the envelope a bit. I also
have no doubt that you wouldn't try a take off if you weren't sure you'd
clear the trees. I've seen certified engines that have gone as long as 4000
hr "On condition" and were still running strong. They wouldn't be allowed
in trainers or commercial planes but for the guy who zipped out early in the
morning to get breakfast at the "secret gullies" it was perfect.
Noel
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of dave
Sent: Saturday, May 31, 2008 9:41 AM
Subject: Kitfox-List: Re: Ethanol?
> Our engines don't require high octane fuel but I'm sure it doesn't hurt.
Rotax 447/503/532/582 912 UL can run fine on reg gas assuming it not over
a few months old. gas will lose a bit of octane over time as well if you pre
mix it it can lose a bit more. These are NOT high compression or high
performance engines the way we are set up to run them. My current 582 in my
Kitfox has over 460 hours on it in last 23 months running 98% reg gas a few
time av gas,marine gas(who know what is was) Engine has Never been apart.
Changed plugs 3 times now. Just put in 4th set a few weeks ago. Working well
but my disclaimer is that it is on borrowed time and could fly apart at
anytime even as soon as my next flight.
--------
Rotax Dealer, Ontario Canada
Flying Videos and Kitfox Info
http://www.cfisher.com/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=185595#185595
Message 3
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| Subject: | Re: Ethanol?Ethanol? |
I=92ve been flying my Avid A model for about 14 years with pure
gasoline.
About 2 years ago 10% ethanol was mandated in Maryland, and I have had
several incidents which have caused me to make off-airport landings or
abort
take-offs due to engine malfunction. Extensive analysis has led to the
inescapable conclusion that the ethanol had dissolved some of the
polyester
resin of my 1990 vintage wing tank and the dissolved resin plugged up
the
fuel filter. Examination of the filter showed that the element was
covered
with a slimy goo, and I could barely blow through it. I have since
scouted
out distant areas which still have pure fuel, which I now buy and
transport
in large quantities, and have had no more trouble since! I understand
that
Avid and Kitfox changed their wing tank resin to epoxy or vinylester at
some
point (anybody know when?), and that the later manufactured tanks
probably
won=92t have this problem.
Chuck
Flying and grinning since 1956
Checked by AVG.
5/30/2008
2:53 PM
Message 4
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| Subject: | Re: Ethanol?Ethanol? |
Vinylester fillers are supposed to be "ethanol resistant" whatever that
means. I'd wait to see something "ethanol proof". In the mean time Dave,
of this list, has the address for slip in tanks that will fit the wings.
Those tanks are rotary moulded HDPE which is just about as close to ethanol
proof as you can get. Check back through the archives or wait a few hours
I'm sure Dave will post the address again for you.
Sigtaturea
Noel Loveys
Campbellton, NL, Canada
CDN AME intern, PP-Rec
C-FINB, Kitfox III-A
582 B box, Ivo IFA, Aerocet 1100 floats
noelloveys@yahoo.ca
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Chuck Popenoe
Sent: Saturday, May 31, 2008 11:26 AM
Subject: Re: Kitfox-List: Re: Ethanol?Ethanol?
I've been flying my Avid A model for about 14 years with pure gasoline.
About 2 years ago 10% ethanol was mandated in Maryland, and I have had
several incidents which have caused me to make off-airport landings or abort
take-offs due to engine malfunction. Extensive analysis has led to the
inescapable conclusion that the ethanol had dissolved some of the polyester
resin of my 1990 vintage wing tank and the dissolved resin plugged up the
fuel filter. Examination of the filter showed that the element was covered
with a slimy goo, and I could barely blow through it. I have since scouted
out distant areas which still have pure fuel, which I now buy and transport
in large quantities, and have had no more trouble since! I understand that
Avid and Kitfox changed their wing tank resin to epoxy or vinylester at some
point (anybody know when?), and that the later manufactured tanks probably
won't have this problem.
Chuck
Flying and grinning since 1956
Checked by AVG.
5/30/2008 2:53 PM
Message 5
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| Subject: | Re: Ethanol?Ethanol? |
Noel
The site is http://wingtanks.com/
Ted Palamarek
Edmonton
_____
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Noel Loveys
Sent: May 31, 2008 1:29 PM
Subject: RE: Kitfox-List: Re: Ethanol?Ethanol?
Vinylester fillers are supposed to be "ethanol resistant" whatever that
means. I'd wait to see something "ethanol proof". In the mean time Dave,
of this list, has the address for slip in tanks that will fit the wings.
Those tanks are rotary moulded HDPE which is just about as close to ethanol
proof as you can get. Check back through the archives or wait a few hours
I'm sure Dave will post the address again for you.
Noel Loveys
Message 6
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| Subject: | Re: Ethanol?Ethanol? |
At 12:29 PM 5/31/2008, you wrote:
>Vinylester fillers are supposed to be "ethanol resistant" whatever
>that means. I'd wait to see something "ethanol proof".
There are vinylesters that are "ethanol proof". They are used to make
tanks for gas stations, most of which are now fiberglass. I'm
guessing John's using such a formulation for his current crop of wing tanks.
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.
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