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stokesc(at)wildblue.net Guest
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Posted: Sat Jul 18, 2009 8:53 pm Post subject: 582 stuck - update |
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Stuck seems to be the right word for this situation.
I removed the head - still stuck.
I removed the gear box - still stuck.
I then took off the cylinders - still stuck but not as much.
Took the engine out of the plane and took the ign and oil
pump off. Had a good look inside the crankcase and elsewhere.
And..............found a layer of what looks and feels like tar.
Everything is covered with this and is very sticky.
Even the rings are stuck with the stuff.
It seems to clean up with carb cleaner.
I think this is the "stuck" culprit.
So, where did this stuff come from?
I think maybe the engine was stored with some kind of preservatives
when shipped here.
Then during many storage years it turned into this stuff.
The engine is dated Jan 1991.
I finally hung it on the airplane in 2006 and first run-up for
break-in in 2008. Every thing seemed normal for the hour
break-in procedure. Then during taxi test in 2009 the stuck
problem developed.
Any ideas how this stuff might have developed ?
There is no evidence of any metal to metal dings.
Fuel used was Conoco prem with no evidence of ethanol.
The oil tank shows oil being consumed normally.
Is there any way to clean up this stuff without splitting the case?
I don't have the special tools to disassemble and assemble the engine.
And they are pricey.
Anyone have these tools that would be willing to rent them to me.
Cecil in N. Idaho
N161CP Kitfox IV - 582 C 1050
[quote][b]
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Lynn Matteson
Joined: 10 Jan 2006 Posts: 2778 Location: Grass Lake, Michigan
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Posted: Sun Jul 19, 2009 2:04 am Post subject: 582 stuck - update |
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I had a similar experience just recently with a single-cylinder
Briggs and Stratton engine that was out of a cultivator. The piston
was so stuck in the bore that it needed to be pried out. I found a
sticky substance in the pan that was grey-looking and very sticky.
They grey color was probably from the aluminum cylinder walls, but
the stickiness I just can't explain. I used alcohol, MEK, mineral
spirits, water, lacquer thinner, and finally carburetor cleaner to
try to dissolve the stuff. None of these products seemed to cut the
stuff, but with some soaking, the carb cleaner finally got rid of
it....not like it should have, though. Of course, the EPA has
weakened the carb cleaner to the point that you could damn near drink
it...it sure isn't as potent as it used to be. I hope you find the
answer.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 707.7 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Status: flying
do not archive
On Jul 19, 2009, at 12:47 AM, Cecil Stokesberry wrote:
Quote: | Stuck seems to be the right word for this situation.
I removed the head - still stuck.
I removed the gear box - still stuck.
I then took off the cylinders - still stuck but not as much.
Took the engine out of the plane and took the ign and oil
pump off. Had a good look inside the crankcase and elsewhere.
And..............found a layer of what looks and feels like tar.
Everything is covered with this and is very sticky.
Even the rings are stuck with the stuff.
It seems to clean up with carb cleaner.
I think this is the "stuck" culprit.
So, where did this stuff come from?
I think maybe the engine was stored with some kind of preservatives
when shipped here.
Then during many storage years it turned into this stuff.
The engine is dated Jan 1991.
I finally hung it on the airplane in 2006 and first run-up for
break-in in 2008. Every thing seemed normal for the hour
break-in procedure. Then during taxi test in 2009 the stuck
problem developed.
Any ideas how this stuff might have developed ?
There is no evidence of any metal to metal dings.
Fuel used was Conoco prem with no evidence of ethanol.
The oil tank shows oil being consumed normally.
Is there any way to clean up this stuff without splitting the case?
I don't have the special tools to disassemble and assemble the engine.
And they are pricey.
Anyone have these tools that would be willing to rent them to me.
Cecil in N. Idaho
N161CP Kitfox IV - 582 C 1050
www.matronics.com/contribution _-
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Kitfox IV-Jabiru 2200
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Ken Potter
Joined: 18 Aug 2007 Posts: 85 Location: Lanark, Ontario
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Posted: Sun Jul 19, 2009 3:04 am Post subject: Re: 582 stuck - update |
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I would be interested in any other's experience of Cecil's problem. My 582 was delivered to the previous owner in 1991. In 2003, not even having run it yet he had it "updated" by a rotax dealer. When I purchased the project from him in 2007 I remember him saying that after the update it had been "preserved" by the dealer. Now, my experience as a mechanical engineer tells me that this is normally done just using a preservative oil which is compatible with other oils. But as I'll be ready to start and break mine in within the next couple of months, Cecil's observations have me wondering.....
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_________________ Ken Potter
Model II, No. 483
Rotax 582, C-Box,
99% Complete
C-FJKP
Lanark, Ontario |
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ronlee
Joined: 25 Dec 2006 Posts: 141
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Posted: Sun Jul 19, 2009 5:49 am Post subject: Re: 582 stuck - update |
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Transmission shops use carburetor cleaner to clean the burnt on varnish off parts all the time.
They have it in five gallon containers. maybe you could find some shop with a container large enough to soak the whole crank case. I do not know what it would do to the seals though.
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Tucson, Arizona |
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shanesather(at)netkaster. Guest
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Posted: Sun Jul 19, 2009 8:40 am Post subject: 582 stuck - update |
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This seems almost like mine was when I first kit my fox. The first few hours on the engine all was good. Then all hell poured loose and the inside of the engine got coated with a tar like stuff and had to be cleaned all out. We believe it came from the fuel tanks.
Do not archive.
[quote] ---
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Paul A. Franz, P.E.
Joined: 02 Dec 2008 Posts: 280 Location: Bellevue WA
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Posted: Sun Jul 19, 2009 11:20 am Post subject: 582 stuck - update |
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On Sun, July 19, 2009 9:34 am, Shane Sather wrote:
Quote: | ...... The first few hours on the
engine all was good. Then all hell poured loose and the inside of the engine got
coated with a tar like stuff and had to be cleaned all out. We believe it came from
the fuel tanks.
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I've been following this thread and I too suspect the fouling wasn't present when the
engine was first run. Something in contact with the fuel is the cause rather than the
pickling process on the engine done for long term storage.
--
Paul A. Franz
Registration/Aircraft - N14UW/Merlin GT
Engine/Prop - Rotax 914/NSI CAP
Bellevue WA
CULTURE
"A civilized society's first line of defense is not the law, police and
courts but customs, traditions and moral values. Behavioral norms, mostly
transmitted by example, word of mouth and religious teachings, represent a
body of wisdom distilled over the ages through experience and trial and
error. They include important thou-shalt-nots such as shalt not murder,
shalt not steal, shalt not lie and cheat, but they also include all those
courtesies one might call ladylike and gentlemanly conduct. The failure to
fully transmit values and traditions to subsequent generations represents
one of the failings of the so-called greatest generation. ... Policemen and
laws can never replace customs, traditions and moral values as a means for
regulating human behavior. At best, the police and criminal justice system
are the last desperate line of defense for a civilized society. Our
increased reliance on laws to regulate behavior is a measure of how
uncivilized we've become."
-- Walter E. Williams, George Mason University economics professor
"The Founding Fathers established a system which meant a radical
break from that which preceded it. A written constitution would
provide a permanent form of government, limited in scope, but
effective in providing both liberty and order. Government was not
to be a matter of self-appointed rulers, governing by whim or harsh
ideology. It was not to be government by the strongest or for the
few. Our principles were revolutionary. We began as a small, weak
republic. But we survived. Our example inspired others, imperfectly
at times, but it inspired them nevertheless. This constitutional
republic, conceived in liberty and dedicated to the proposition
that all men are created equal, prospered and grew strong. To this
day, America is still the abiding alternative to tyranny. That is
our purpose in the world -- nothing more and nothing less."
-- Ronald Reagan
"The nation which indulges towards another an habitual hatred, or
an habitual fondness, is in some degree a slave. It is a slave to
its animosity or to its affection, either of which is sufficient to
lead it astray from its duty and its interest."
-- George Washington
About the Federalist Papers - wiki
<http://en.wikipedia.org/wiki/Federalist_Papers>
All of them presented in the Library of Congress
<http://thomas.loc.gov/home/histdox/fedpapers.html>
Searchable e-text of the Federalist and other documents too.
<http://www.foundingfathers.info/federalistpapers/>
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_________________ Paul A. Franz, P.E.
Registration/Aircraft - N14UW/Merlin GT
Engine/Prop - Rotax 914/NSI CAP
Bellevue WA
425.241.1618 Cell
425.440.9505 Office |
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rjdaugh
Joined: 30 Aug 2006 Posts: 195
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Posted: Sun Jul 19, 2009 3:46 pm Post subject: 582 stuck - update |
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I would like to second Shane’s suggestion. I had a similar problem with my 912S. It ran great for several flights then the starter carbs (choke is a misnomer for this engine) stuck. I took them apart, cleaned them up, and then flew a couple of flights and they gummed up again. I got smart this time and drained all the gas from the tanks, cleaned the starter carbs again, and then with new gas, had no more problems.
I hate to admit that I have further confirmation that the problem was with the gas (or more correctly, with the gas tanks!). I took the bad gas home intending to use it to burn slash piles and lost track of it. I put it in my lawn mower and ended up pulling the carb and cleaning it! (*&%#$*(&
This sounds different in scale, but ,,,,
Randy
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Shane Sather
Sent: Sunday, July 19, 2009 10:34 AM
To: kitfox-list(at)matronics.com
Subject: Re: 582 stuck - update
This seems almost like mine was when I first kit my fox. The first few hours on the engine all was good. Then all hell poured loose and the inside of the engine got coated with a tar like stuff and had to be cleaned all out. We believe it came from the fuel tanks.
Do not archive.
[quote]
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_________________ Randy
Kitfox 5/7 912S
Black Hills, South Dakota |
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occom
Joined: 26 Aug 2006 Posts: 404
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Posted: Sun Jul 19, 2009 5:34 pm Post subject: 582 stuck - update |
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The deposits appear in different places and seem related to fiberglass tanks. References to black deposits in engines is more common in marine applications. Here is a link to one.
http://www.ardujenski.com/files/documents/fueltest.pdf
It relates to alchohol but perhaps these deposits show up in new tanks moreso than older ones. In any case it looks like this material is soming into the engine from the tanks.
Maybe a good waashout or seasoning with fuel which must then be disposed is an answer. Anybody starting up a new "fox from early nineties?
[quote][b]
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Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
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Posted: Sun Jul 19, 2009 6:14 pm Post subject: 582 stuck - update |
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I suggest you guys start testing your fuel for ethanol concentration.
Noel
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Shane Sather
Sent: 19 July 2009 14:04
To: kitfox-list(at)matronics.com
Subject: Re: 582 stuck - update
This seems almost like mine was when I first kit my fox. The first few hours on the engine all was good. Then all hell poured loose and the inside of the engine got coated with a tar like stuff and had to be cleaned all out. We believe it came from the fuel tanks.
Do not archive.
Quote: |
----- Original Message -----
From: Cecil Stokesberry (stokesc(at)wildblue.net)
To: Kitfox (Kitfox-list(at)matronics.com)
Sent: Saturday, July 18, 2009 10:47 PM
Subject: 582 stuck - update
Stuck seems to be the right word for this situation.
I removed the head - still stuck.
I removed the gear box - still stuck.
I then took off the cylinders - still stuck but not as much.
Took the engine out of the plane and took the ign and oil
pump off. Had a good look inside the crankcase and elsewhere.
And..............found a layer of what looks and feels like tar.
Everything is covered with this and is very sticky.
Even the rings are stuck with the stuff.
It seems to clean up with carb cleaner.
I think this is the "stuck" culprit.
So, where did this stuff come from?
I think maybe the engine was stored with some kind of preservatives
when shipped here.
Then during many storage years it turned into this stuff.
The engine is dated Jan 1991.
I finally hung it on the airplane in 2006 and first run-up for
break-in in 2008. Every thing seemed normal for the hour
break-in procedure. Then during taxi test in 2009 the stuck
problem developed.
Any ideas how this stuff might have developed ?
There is no evidence of any metal to metal dings.
Fuel used was Conoco prem with no evidence of ethanol.
The oil tank shows oil being consumed normally.
Is there any way to clean up this stuff without splitting the case?
I don't have the special tools to disassemble and assemble the engine.
And they are pricey.
Anyone have these tools that would be willing to rent them to me.
Cecil in N. Idaho
N161CP Kitfox IV - 582 C 1050
Quote: | href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.comhref="http://www.matronics.com/contribution">http://www.matronics.com/c | | 0123456789 Quote: | href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com | 0 Quote: | href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com | 1 Quote: | href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com | 2 Quote: | href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com | 3
[quote][b]
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_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
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Posted: Sun Jul 19, 2009 6:14 pm Post subject: 582 stuck - update |
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Have you tried brake cleaner. It is usually rubber safe and will dissolve
most tars.
I'd like to see an analysis done on the gunk... My bet is it will be epoxy
resin. Check to see if any of this goo is in the float bowls... I have the
funny feeling you may find your tanks dissolving too! Goo in the base can
only get there through the carb... in the fuel. Mineral oils are used to
mothball engines and I find it hard to see that stuff turning to goo while
the engine is operating.
Noel
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Kitfox III-A
Aerocet 1100 Floats |
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stokesc(at)wildblue.net Guest
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Posted: Sun Jul 19, 2009 9:46 pm Post subject: 582 stuck - update |
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The instructions I used for first start of engine was to
add some oil to the fuel just in case the oil injector
did not work. This I did and maybe I put too much oil
in the fuel and the oil injector did work as it should.
Maybe this was the start of it all.
I will look in the flood bowl to see if there is any gunk.
Carb clearer works very well in dissolving this black gunk.
I will also try brake cleaner to see how it works.
I doubt if either will harm the crank bearings, but I am
concerned what damage the cleaner might do to the
oil seals or o-rings.
Cecil
Kitfox IV 1050 582 C
[quote][b]
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Guy Buchanan
Joined: 16 Jul 2006 Posts: 1204 Location: Ramona, CA
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Posted: Sun Jul 19, 2009 9:49 pm Post subject: 582 stuck - update |
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At 06:28 PM 7/19/2009, you wrote:
Quote: | The deposits appear in different places and seem related to fiberglass tanks. References to black deposits in engines is more common in marine applications. Here is a link to one. |
Here in Ramona we had the dreaded sludge in a Kitfox III with a 912. It was attributed to bad gas, and the tanks were unequivocally exonerated.
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 400 hrs. and counting [quote][b]
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_________________ Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
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Posted: Mon Jul 20, 2009 4:43 am Post subject: 582 stuck - update |
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If there is anything in the float bowls then you will have to check the tanks... be sure to use a sealed light there. An excess of oil would cause your engine to be very smoky and could even cause the plugs to foul but black goo in the base where unburned atomized fuel lives is not normal. The only other thing I can think of is if someone sugared your gas... even that shouldn’t show up in the base of the engine.
The fact the stuff seems to be resistant to carb cleaner makes ne think what you are seeing is the resins that form your fuel tanks. Do you drain your gascolator before every flight? It is surprising that the goo didn’t turn up there as a yellowish slime.
Noel
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Cecil Stokesberry
Sent: 20 July 2009 03:13
To: Kitfox
Subject: 582 stuck - update
The instructions I used for first start of engine was to
add some oil to the fuel just in case the oil injector
did not work. This I did and maybe I put too much oil
in the fuel and the oil injector did work as it should.
Maybe this was the start of it all.
I will look in the flood bowl to see if there is any gunk.
Carb clearer works very well in dissolving this black gunk.
I will also try brake cleaner to see how it works.
I doubt if either will harm the crank bearings, but I am
concerned what damage the cleaner might do to the
oil seals or o-rings.
Cecil
Kitfox IV 1050 582 C
Quote: | http://www.matronics.com/Navigator?Kitfox-List | 0123456789
[quote][b]
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_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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icubob(at)gmail.com Guest
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Posted: Mon Jul 20, 2009 5:14 am Post subject: 582 stuck - update |
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not likely. i have had 2 cucle mixes sit for yrars and never seen a precipitate. i always dump oil in my injector snowmobiles and mix for the chainsaw gets so old i often dump it .
bob noffs n. wi.
On Mon, Jul 20, 2009 at 12:43 AM, Cecil Stokesberry <stokesc(at)wildblue.net (stokesc(at)wildblue.net)> wrote:
[quote] The instructions I used for first start of engine was to
add some oil to the fuel just in case the oil injector
did not work. This I did and maybe I put too much oil
in the fuel and the oil injector did work as it should.
Maybe this was the start of it all.
I will look in the flood bowl to see if there is any gunk.
Carb clearer works very well in dissolving this black gunk.
I will also try brake cleaner to see how it works.
I doubt if either will harm the crank bearings, but I am
concerned what damage the cleaner might do to the
oil seals or o-rings.
Cecil
Kitfox IV 1050 582 C
Quote: |
arget="_blank">http://www.matronics.com/Navigator?Kitfox-List
ttp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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pwmac(at)sisna.com Guest
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Posted: Mon Jul 20, 2009 6:42 am Post subject: 582 stuck - update |
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Noel, No way it sugar . That is a false old wives tail. All it does is just lay in the tank waiting to clog the filters. If it arrives in the engine, unlikely, it does not produce the black junk that we created in the chem lab.
The fuel and or tank coating is my best guesss. The designer unleaded fuels in some markets have things a lot worse than alcohol. These various additives are aromatics to solve some perceived pollution and they are very aggressive. The 10% alky is unlikely the problem since it is so common in use with the glass tanks and common tank coatings that do not result in black junk. Another possible issue could be an off the wall tank coating that none of the other guys have used.
Probably a chem lab analysis of the black junk is in order.
PW
==========
At 09:08 AM 7/20/2009, you wrote:
[quote]If there is anything in the float bowls then you will have to check the tanks... be sure to use a sealed light there. An excess of oil would cause your engine to be very smoky and could even cause the plugs to foul but black goo in the base where unburned atomized fuel lives is not normal. The only other thing I can think of is if someone sugared your gas... even that shouldn’t show up in the base of the engine.
The fact the stuff seems to be resistant to carb cleaner makes ne think what you are seeing is the resins that form your fuel tanks. Do you drain your gascolator before every flight? It is surprising that the goo didn’t turn up there as a yellowish slime.
Noel
From: owner-kitfox-list-server(at)matronics.com [ mailto:owner-kitfox-list-server(at)matronics.com (owner-kitfox-list-server(at)matronics.com)] On Behalf Of Cecil Stokesberry
Sent: 20 July 2009 03:13
To: Kitfox
Subject: 582 stuck - update
The instructions I used for first start of engine was to
add some oil to the fuel just in case the oil injector
did not work. This I did and maybe I put too much oil
in the fuel and the oil injector did work as it should.
Maybe this was the start of it all.
I will look in the flood bowl to see if there is any gunk.
Carb clearer works very well in dissolving this black gunk.
I will also try brake cleaner to see how it works.
I doubt if either will harm the crank bearings, but I am
concerned what damage the cleaner might do to the
oil seals or o-rings.
Cecil
Kitfox IV 1050 582 C
[b]
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Guy Buchanan
Joined: 16 Jul 2006 Posts: 1204 Location: Ramona, CA
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Posted: Mon Jul 20, 2009 8:52 am Post subject: 582 stuck - update |
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At 10:43 PM 7/19/2009, you wrote:
Quote: | This I did and maybe I put too much oil
in the fuel and the oil injector did work as it should.
Maybe this was the start of it all.
|
Doubt it. Too much oil just leads to smoke and carbon build-up, not
varnish or sludge.
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 400 hrs. and counting
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_________________ Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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occom
Joined: 26 Aug 2006 Posts: 404
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Posted: Mon Jul 20, 2009 8:56 am Post subject: 582 stuck - update |
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Hi Paul, if you read the report at the link of the last post I sent, it looks like the "gunk" is composed of styrene in their tests.
[quote] ---
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pwmac(at)sisna.com Guest
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Posted: Mon Jul 20, 2009 1:41 pm Post subject: 582 stuck - update |
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I confess I have not read allt he messages. Maybe some foam was left in the tank -dissolves with fuel. Hmmm.
PW
========
At 10:54 AM 7/20/2009, you wrote:
[quote]Hi Paul, if you read the report at the link of the last post I sent, it looks like the "gunk" is composed of styrene in their tests.
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n81jg(at)aol.com Guest
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Posted: Mon Jul 20, 2009 2:39 pm Post subject: 582 stuck - update |
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Does the tar like substance desolve in water? If so did someone put sugar in your tank or fuel? Sugar forms a molasses like gum with heat.
John Greaves
Redding, CA
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