Hi There All,
I'm a bit puzzled with this topic or maybe I miss something: never had for the
last 42 years any trouble of debris in filters on my (numerous) cars nor with
my motor bikes (namely BMW using Bing 64 carbs). Why should have I using the
same
SP98 carried from the fuel pumps via clean cans (assuming the tank of F-LH
is clean after 10 years of service and the pipes are Mogas compatible) ?
Max Cointe
mcointe@free.fr
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 450 hours
F-PLDJ DynAro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1550 heures
-----Message d'origine-----
De : owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] De la part de Christoph Both
Envoy : lundi 2 septembre 2013 14:39
: europa-list@matronics.com
Objet : Re: Europa-List: Fuel funnel for Mogas
--> <christoph.both@acadiau.ca>
Hello,
I wonder what kind of practical size for a FUEL FILETR FUNNEL have proven to be
most suitable for the Europa? From your comments it appears more practical to
rather pre-filter mogas at the filling station into the clean fuel containers
rather than sticking a filter into the fuel fill opening on the EUROPA SX style
on the side.
More specifically, Aircraft Spruce has 3 models, small, middle and large with
2.5,3.5
and 5 rpm throughput, but significant size differences. Which one would
you recommend? I am filling up my AC first time this week Christoph Both
#223 Wolfville, Nova Scotia,Canada
On 13-09-01 8:21 AM, "Carl Pattinson" <carl@flyers.freeserve.co.uk> wrote:
><carl@flyers.freeserve.co.uk>
>
>Hi All,
>
>I am surprised that anyone ever gets blocked filters after the initial
>shakedown. I know it is difficult to clean out tanks after build but
>it's definitely worth pumping a few gallons of fuel through the system
>before assuming everything is clean.
>
>If you have dirty fuel in your tanks this is an issue that should be
>addressed first rather instead of relying on the fuel filters to do
>their job. I accept that some of us have less control over what we put
>in our tanks than others (ie: if you are purchasing fuel at the airfield
>pumps).
>
>In the early days I recall that clogged filters were an issue for some
>builders. The filters were becoming overwhelmed by large amounts of
>crud which should never have been there in the first place - I do not
>believe that changing the size of the filter mesh would address this
>particular issue.
>
>Personally I never liked the factory system and opted for a gascolator
>setup instead - nothing fancy like an Andair, just the cheap kit
>builders one available from LAS or Aircraft Spruce (I priced one at the
>LAA yesterday and they are selling for 60) . The beauty of the setup
>is that any large lumps of crud (or water) tend to settle in the bottom
>of the gascolator bowl and will be drained off when you do your do your
>daily fuel checks - very little muck reaches the filter mesh at the top
>of the bowl (this is a 120 micron screen).
>
>We are fortunate in that all our fuel is from cans which we insist on
>filtering through a fine mesh funnel and we have never found any signs
>of a clogged filter. It is worth noting that metal fuel cans generate
>their own debris as the internal paint on the cans tends to flake off
>and if not filtered would cause problems if not pre filtered.
>
>For those who have to rely on airfield based supplies if it should be
>possible to carry a filter sock (wire or nylon mesh) which could be
>dropped down the fuel filler opening to ensure the cleanliness of any
>external sources of fuel. This could even be a permanent installation.
>
>Additionally as a backup, a fuel pressure gauge which would give a
>visual warning of low pressure due to a filter blockage.
>
>Carl Pattinson
>G-LABS
>
>-----Original Message-----
>From: owner-europa-list-server@matronics.com
>[mailto:owner-europa-list-server@matronics.com] On Behalf Of Pete
>Lawless
>Sent: 01 September 2013 11:08
>To: europa-list@matronics.com
>Subject: Europa-List: Fuel filters
>
>
>Hi John
>
>I have the original glass filters and am very happy with them. In the
>first few hours of a new Europa they do get blocked and mine needed
>cleaning every
>5 hours or so for the first 25 hours and on one occasion at about 10
>hours caused fuel starvation on the climb out. Then less frequently
>cleaning until the tank settled down at about 100 hours. At 550 hours
>the filter now need a clean about every 50 hours.
>
>My filters are installed under the seats protected by a Perspex cover,
>as per the original Classic layout. I inspect them BEFORE EVERY
>FLIGHT. The beauty of the glass container is that you can see what is
>going on, all that is needed is to pull up the seat cushion and look.
>Cleaning is very easy you just change the filter screen for a new one
>and wipe the inside of the glass.
>
>I would be very reluctant to install a filter unit I could not inspect
>without taking it to bits.
>
>Pete
>Classic #109 Rotax 912UL
>
>
>-----Original Message-----
>From: owner-europa-list-server@matronics.com
>[mailto:owner-europa-list-server@matronics.com] On Behalf Of John
>Wighton
>Sent: 01 September 2013 09:23
>To: europa-list@matronics.com
>Subject: Europa-List: Re: Daily Mail report of father and daughter
>fatality
>
>
>The photos taken in 2002 of the crashed aircraft are shocking and
>hopefully not an indicator of the condition she was in at the time of
>the accident.
>But l have to say that if the level of neglect extended to the systems,
>especially the fuel system, the cause of the incident may easily have
>been a blocked filter. According to a close friend of David, whom l
>spoke to yesterday at the Rally, the accident occurred at full power
>in the climb out after refuelling. If so the classic case of power
>starvation due to a blocked filer is a possible cause. I note that the
>photos show the inline filter used is the standard glass tube variety.
>Blockage of this type of inline filter has caused many incidents and at
>least one written off Europa.
>
>Analysing this filter shows it uses a 22 micron sized mesh. This is
>way smaller than the 100 micron (largest) stipulated by Rotax. I had a
>stoppage due to a blocked primary filter (same type) a few years ago,
>this led to a hasty decent into Elstree using the reserve feed (thanks
>for the fire cover guys). The filter was partially blocked with
>translucent material. It ran on the ground but would not feed fuel to
>the goverened 5000 rpm of my
>AP332
>controller.
>
>Having thereafter spent a year in a constant state of fuel feed anxiety
>l changed them for Andair filters which have a 60 micron filter size.
>To date these have proven extremely reliable (100%).
>
>In 2012 l contacted Andy at Andair to ask if a version for 1/4in bore
>fuel lines could be made. He said it was quite easy, just a CNC
>program change, the filters would then have a push-on nipple type end
>and not require screw fit unions (as in my installation). Some
>discussion occurred with Andy Draper about the mod.
>
>Yesterday l checked with Andair, he had not got around to adapting the
>CNC code and hence nothing had occurred at LAA Engineering.
>
>If it turns out that the cause of the stoppage on GBXS was filter
>related (this is speculative but informed on my part) we should support
>some action which will lead to changes in the use of these standard
>glass tube filters.
>A possibility for Europas could be a new filter, perhaps the Andair
>version.
>
>
>I shall write to the LAA with my concerns over the continued use of the
>glass tube, 22. Micron filters. If any Europa flyer, or other aircraft
>operator with the same filter type, can supply information regarding
>the use of these filters it may assist in deciding which way to go.
>Information such as frequency of inspection, frequency of cleaning,
>stoppage or partial blockage info, leaks, other issues will br
>gratefully received and treated in confidence. Likewise any info
>showing satisfactory in service history is also welcome. Please post
>info or email direct to me.
>John(dot)wighton@ultraflight.net
>
>John Wighton
>Chief of Stress
>Pilatus Aircraft
>
>--------
>John Wighton
>Europa XS trigear G-IPOD
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=407837#407837
>
>
>--
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