Hal=2C
Thanks for your comments. I've sent 3 invoices=2C two in Oct. And another
two weeks ago. Please check your junk mail. I'll send the cap on payment.
Best Regards=2C
Bud
Sent from my Verizon Wireless 4G LTE DROID
Hal Carpenter <wtcef@arn.net> wrote:
Hi Bud=2C
Thanks for all this good information. We have used Ethanol free mogas
almost exclusively...locally....trips are a different story as most
airports don't keep mogas let alone e free gas. So=2C we carry lead bindin
g
solution.
Anyway=2C what about the fuel caps? Have they been shipped out yet?
Hal Carpenter-Amarillo=2C TX
On Thu=2C Nov 27=2C 2014 at 8:11 PM=2C Bud Yerly <budyerly@msn.com> wrote:
>
> Gordon=2C
> At the shop we have seen the results of up to 10% ethanol in MOGAS.
>
> I did a paper on the pros and cons of MOGAS vs AVGAS. See my website:
> www.customflightcreations.com/sitebuildercontent/
> sitebuilderfiles/ethanol.pdf
>
> Effects ethanol on the Europa are summarized and editorialized below:
>
> The fuel tank is unaffected by ethanol (or alcohol) of any type. The
> "plastic tanks" are not as prone to water condensation as metal tanks are
.
> Note: Ethanol absorbs water=2C so read below.
>
> The fuel filler neck (that 57 degree black rubber hose between the tank
> and the FS18 cobra neck inlet tube) tends to harden with ethanol laced fu
el
> when the tank is filled well into the neck. It also tends to stink.
> Using 2 inch aluminum pipe bent or welded to the proper angle and trimme
d
> close the the plastic tank and FS18=2C cures this.
>
> The Red stripped fuel hose used on the fuel tank bosses are fine=2C
> especially if you change the hoses every 5 years anyway. When installed
> properly=2C the hose doesn't contact the fuel. I've been known to use
> ProSeal 890 to seal the aluminum to tank boss gap then put the hose on to
> assure a good seal.
>
> The Redux used to secure the coarse screens in the tank fuel fittings
> tends to get brittle with exposure to ethanol. About the 10 year point o
r
> so it's really crumbly. It may be a good idea on the 5 year hose change
to
> pull these fittings and inspect /replace the Redux. Since ethanol laced
> fuel cannot be used in ANY fiberglass tank (epoxy or polyester) that
> problem should be expected. Pro Seal (PPG 890) fuel sealant will soften
> with ethanol but holds up well with up to 10 percent ethanol.
>
> Fuel delivery lines should be of the newer SAE J30 R-9 or better. In the
> US=2C the EPA carb fuel lines (now a SAE J30 R 14 or better (incorporates
a
> synthetic flourelastomer liner) have proven to be quite reliable. The fu
el
> hose has an inner liner and a normal outer rubber with fiber reinforcemen
t
> in the rubber section and works well on barbed fittings. The fuel smell
> does not permeate these lines. Caution=2C do not over tighten these line
s
> with your hose clamps.
>
> The braided fuel hose sold by Aeroquip is not double lined and tends to
> permeate the smell through the lines over time=2C but I only use them in
the
> mono wheel well=2C and have no smell problems with the MOGAS as the wheel
> well is ventilated. Everywhere else in the mono=2C I use an SAE J30 R-14
> line. IF USING MOGAS WITH AEROQUIP RUBBER LINES=2C change them at 5 years
as
> although they seem fine with ethanol up to 10%=2C they do harden over tim
e.
>
> Teflon fuel lines are fine=2C but know your fuel line. PTFE fuel lines
> crack just like the tank does with flexing. Do not bend them beyond thei
r
> radius. Use only proper fittings=2C and in our experience=2C these lines
take a
> set after a few years. If removed and bent from their original shape
> during re-installation=2C test them as they do crack easily if flexed.
> Nothing lasts forever=2C so I tend not to use these lines as they are
> expensive to purchase and make=2C and over time have proven to be fragile
...
>
> The fuel pumps are OK as the Facet pumps for the 912 Series can handle up
> to 10% ethanol. The Piersburgs fail about every 5-7 years in some way s
o
> I can't verify the 914 pumps over time.
>
> The Rotax engine and its components is fine with fuel with up to 10%
> ethanol. Mechanics have concerns about flying with ethanol of 10% due to
> vaporization. Read on below.
>
> Many have commented on and shared their own experiences with ethanol lace
d
> fuel in the past. Do your research. My clients get shown a video we did
> on ethanol effects on a 914 and its tank from an aircraft that sat for s
ix
> months with a half a tank of MOGAS with 10% ethanol gas. It is sobering.
>
> Here are the problems I have experienced:
>
> Ethanol laced fuel should not be stored in the aircraft for any longer
> than 30 days. Especially if in low temp high humidity conditions such as
> winter. Water condenses in the fuel over time and once the ethanol reache
s
> water saturation=2C a layer of nasty scum forms in the water on the bott
om
> of the tank. This is some sort of fungus by the looks of it and quite
> tough to clean out.
>
> Even if the aircraft was properly decommissioned at the end of the flying
> season=2C pull the carb float bowls=2C clean them=2C re-commission the en
gine and
> prep for startup.
>
> Ethanol fuel will also affect the oil so be sure to put new oil in at the
> end of the season=2C fog the cylinders and turn the engine over to keep t
he
> gears and cylinders coated.
>
> When in doubt or buying a used aircraft=2C fuel lines which do not meet t
he
> current fuel permeation standards tend not to leak but do allow the fuel
> scent to permeate through the lines and smell up the aircraft (so you thi
nk
> you have a leak) and are brittle or cracked on the ends=2C so do yourself
a
> favor and replace them.
>
> Rotax 91X engines:
>
> Ethanol will corrode the carb bowls if the fuel is left to sit for a few
> months (many manufacturers say degradation begins in less than 30 days).
> The aluminum coating in the float bowls actually flakes off the bottom.
> This particulate causes premature wear in the main and needle jets and ca
n
> clog the jets.
>
> The 912S and 914=2C with the higher octane rating requirements=2C are fin
e
> with fresh MOGAS fuel. However=2C six month old premium fuel in Florida
or
> wet climates will absorb water=2C to saturation and will lower the ethano
l
> content and octane. I have never had a problem with detonation or pingin
g
> at high power after the aircraft has set in the hanger up to 30 days.
> Plugs look good over 50 hours of engine operation at cruise operation and
> local flying. (Sorry=2C but I change plugs every annual and typically ave
rage
> only 50 to 100 hours per year=2C and since plugs are cheap=2C I don't cle
an
> them.)
>
> Flying with fresh ethanol MOGAS has not been a problem. Up to 10K we hav
e
> had no problems with vaporization=2C detonation or misfires over various
> power settings ranging from max power down to 65% power. Some reliable
> sources have commented that after landing on a cross country fuel stop=2C
> fuel vaporization has prevented engine start. I have not had the proble
m
> as we properly shield and run our fuel lines clear of heat sources and
> always use fresh fuel. We do Young Eagle orientation flights and have
> found on hot summer days=2C engine restarts between two and three flights
> have been problem free.
>
> Bottom line is=2C don't leave ethanol laced fuel in the system over a mon
th
> (my opinion) and if the plane is to be stored for any length of time (ove
r
> 30 days)=2C use a fuel stabilizer and run it through the engine to assure
the
> fuel additive fills the float bowls. Even if the aircraft was properly
> decommissioned at the end of the flying season=2C pull the carb float bow
ls=2C
> clean them=2C re-commission the engine and prep for startup. Drain the
> MOGAS and refill with fresh fuel.
>
> OR=2C drain or burn off the ethanol MOGAS and fill completely with 100LL
> AVGAS. It is fairly easy to just use AVGAS in your last couple of tanks
of
> the year then ad a fuel stabilizer if you like=2C and put the covers on t
he
> plane until flying again. Some aviation fuel suppliers say that 100LL do
es
> lose some of its lead and should not be used if stagnant in the tanks for
a
> year=2C but Shell Aviation experts says properly stored and free of water
=2C
> AVGAS lasts for years with no degradation.
>
> I do not use ethanol fuel in my 914 any longer as our local MOGAS fuel
> suppliers can only supply 92 octane=2C and can't guarantee it being that
high
> after only a short period of time. I do not leave even AVGAS in my tank
> for over six months without pumping out a large amount to assure the
> bottom of the tank=2C filters and float bowls are clean=2C and the fuel h
as the
> right color=2C odor and cleanliness. I change oil every 25 hours with AV
GAS
> and use a fuel additive (Decalin) to keep the lead in suspension. Works
> Great. The fuel price difference and extra oil cost is made back in
> consistent engine operation and piece of mind.
>
> Best Regards=2C
> Bud Yerly
> Custom Flight Creations=2C Inc.
>
>
> --------------------------------------------------
> From: "GBWFH2010" <gaxuk2001@gmail.com>
> Sent: Wednesday=2C November 26=2C 2014 6:38 PM
> To: <europa-list@matronics.com>
> Subject: Europa-List: Europa fuel system - is it suitable for MOGAS with
> ethanol?
>
>>
>> It is getting difficult to obtain ethanol-free MOGAS in the UK. Given
>> that Rotax equipped microlights in the UK have been operating using MOGA
S
>> containing ethanol for several years=2C seemingly without incident=2C th
e
>> indications are the CAA/LAA may be willing to grant dispensation for
>> ethanol based fuel on a type by type basis.
>>
>> We know the Rotax 912 is approved for up to 10% ethanol and the fuel
>> pipes and connectors in our Europas are the same as many microlights=2C
so in
>> theory these would appear to be suitable=2C but my question is does anyb
ody
>> know if the Europa fuel tank is ethanol resistant? If it is we may be ab
le
>> to get clearance to operate on MOGAS with ethanol.
>>
>> Of course whenever possible it would always be preferable to use ethanol
>> free fuel=2C but it would be good to have the flexibility to operate leg
ally
>> on MOGAS with ethanol when necessary.
>>
>> --------
>> Gordon Grant
>>
>> G-BWFH
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=434794#434794
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>
>
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