Today's Message Index:
----------------------
0. 12:12 AM - Contributions Down By 17%... (Matt Dralle)
1. 03:28 AM - Re: RotaxEngines-List Digest: Rough running cured with carb heater (MacDonald Doug)
2. 05:54 AM - Noisy Facet fuel pump (Geoff Heap)
3. 05:59 AM - Re: Noisy Facet fuel pump (Roger Lee)
4. 06:21 AM - I can't burp the oil tank on my 912 UL. Could use some help (Geoff Heap)
5. 07:04 AM - Re: Noisy Facet fuel pump (Geoff Heap)
6. 07:45 AM - Re: Rotax 912 throttle return springs (AmphibFlyer)
7. 07:56 AM - Re: Re: RotaxEngines-List Digest: Rough running cured with carb heater (joeing701@simnet.is)
8. 08:40 AM - Re: I can't burp the oil tank on my 912 UL. Could use some help (Robert Borger)
9. 10:58 AM - Re: I can't burp the oil tank on my 912 UL. Could use some help (dashwood)
10. 11:45 AM - Re: I can't burp the oil tank on my 912 UL. Could use some help (Geoff Heap)
11. 01:46 PM - Re: I can't burp the oil tank on my 912 UL. Could use some help (dashwood)
12. 11:35 PM - Re: Re: Noisy Facet fuel pump (joeing701@simnet.is)
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| Subject: | Contributions Down By 17%... |
Dear Listers,
As of today, Contributions to the Matronics List Fund Raiser are lagging behind
last year at this time by roughly 17%. I have a Fund Raiser each year simply
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All of this costs a fair amount of money, not to mention a significant amount of
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Message 1
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| Subject: | Re: RotaxEngines-List Digest: Rough running cured with |
carb heater
Johann, check to make sure that the enrichener arms are seating correctly in the
off position. I had a similar issue with my engine. Ine of the gurus from
Lockwood pointed out to me that since the enrichener circuit is not a choke, it
actually causes a LEAN condition at higher RPMs.
Doug MacDonald
CH-701 C-GBQX
NW Ontario, Canada
> Hello list members.
>
> I have a friend who has been having problems with the Rotax
> 912 UL in
> a Kitfox 3. When flying today in a temp. around 40F,
> the engine ran
> rough until he pulled the carb heat on. Ran very smooth and
> never as
> good.
> What do you think could cause this problem? We measured the
> carb
> levels and they are very similar. 1/8 of an inch. One carb
> was
> definitely running bad because the EGT dropped on one
> exhaust.
> No carb ice and the carbs have been rebuild. Any ideas?
>
> Johann G.
> Iceland.
> Zenith 701
> Rotax 912UL.
Message 2
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| Subject: | Noisy Facet fuel pump |
Hi Guys. I'm finishing up my fuel system and had the opportunity to try out my
Facet fuel pump. Sounds like a hammering noise. Are they all this noisy or is
it just meGeoff
--------
Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320503#320503
Message 3
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| Subject: | Re: Noisy Facet fuel pump |
Did you bleed the system of air? If the pump is pumping air it will be more noisy.
It may also make a little more noise with no flow going on.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
Home 520-574-1080 TRY HOME FIRST
Cell 520349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320504#320504
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| Subject: | I can't burp the oil tank on my 912 UL. Could use some |
help
Hey guys.
I'm not flying yet, in fact I have not started the engine yet (912 UL). I've been
neglecting it and concentrating on the building. Now I find that I cannot 'burp'
the oil tank . The oil level in the tank has been real low but I know that
it was high at one time because I'm the one that filled it. I know it just
ran down into the crankcase. So I hand propped it again no end of times. No 'burp'
and the oil level would not come up. So I broke the connection under the
engine and ran all the oil down into a clean plastic coffee can. I got slightly
over half a can, about a quart. I re connected the crankcase plug and poured
the retrieved oil into the tank. Dip the tank and its at FULL level. I let it
sit for 2 days and then Hand propped it over 10 full revolutions. Still nothing.
During the 2 days, some of the oil should have leaked into the crankcase.
Have I got an airlock somewhere thats preventing the oil from pumping back to
the tank? I'd appreciate some adviceGeoff
--------
Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320515#320515
Message 5
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| Subject: | Re: Noisy Facet fuel pump |
Yes there could be air in the system. This is the first time use and its exhibiting
"flow" peculiarities even though it looks like a simple downhill route. My
plans are circa 1990's. Small wing tanks hold about 6 gallon each and feed a
5 gallon header tank. The wing tanks are not hooked up yet. I'm probably jumping
the gun here. I should wait untill the wing are permanently on. Typically
these 3 tank systems have always had problems with flow. It looks like a "no brainer"
liquid running downhill but then it goes back uphill to fill the header
tank. From THERE it could be a "no brainer" downhill route to the engine. The
pump in the photo is not my boost pump . It is my Transfer pump. Its used to
start the flow if necessary. I'm going to shelve this for now and pick it up
again when the wings are on. playing with it now may be futile. Thanks anyway
Roger......Geoff
--------
Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320518#320518
Attachments:
http://forums.matronics.com//files/reduced_facet_transfer_pp_172.jpg
Message 6
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| Subject: | Re: Rotax 912 throttle return springs |
Thom Riddle wrote:
> It is standard aviation practice to spring load the throttle arm to wide open.
>
> Several years ago, one my partners in a Cherokee 140 had the throttle cable break
during flight and it went to full throttle which enabled him to get home
and landed deadstick after turning off the fuel and then the mags. Cable replaced
and we were back to flying.
I had exactly the opposite problem once in a SeaRey used for transition training
that had been parked outdoors for several years. SeaReys have the throttle springs
reversed, so that the spring pulls the throttle closed, not open. The reasoning
for this is that the throttle cables (which are pull-only) are much less
likely to fail than the springs. When I throttled back on downwind one day,
the engine wouldn't go to idle--kept running at about half power. The remedy
was easy: switch the engine off and land dead-stick, then re-start to taxi in.
The problem was that one spring had broken during the flight. So I got a little
bonus training that day. And I was thankful that the cables, not the springs,
were set to pull the throttles open.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320522#320522
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| Subject: | Re: RotaxEngines-List Digest: Rough running cured |
with carb heater
Hello Doug.
Thank you for this info.
We will make sure that the enrichener is working accordingly.
Best regards,
Johann G.
Iceland.
----- Upprunalegt skeyti -----
Fr: "MacDonald Doug" <dougsnash@yahoo.com>
Til: rotaxengines-list@matronics.com
Sent: Mnudagur, 22. nvember, 2010 11:25:24 GMT +00:00 Monrovia
Efni: RotaxEngines-List: Re: RotaxEngines-List Digest: Rough running cured with
carb heater
Johann, check to make sure that the enrichener arms are seating correctly in the
off position. I had a similar issue with my engine. Ine of the gurus from
Lockwood pointed out to me that since the enrichener circuit is not a choke, it
actually causes a LEAN condition at higher RPMs.
Doug MacDonald
CH-701 C-GBQX
NW Ontario, Canada
> Hello list members.
>
> I have a friend who has been having problems with the Rotax
> 912 UL in
> a Kitfox 3. When flying today in a temp. around 40F,
> the engine ran
> rough until he pulled the carb heat on. Ran very smooth and
> never as
> good.
> What do you think could cause this problem? We measured the
> carb
> levels and they are very similar. 1/8 of an inch. One carb
> was
> definitely running bad because the EGT dropped on one
> exhaust.
> No carb ice and the carbs have been rebuild. Any ideas?
>
> Johann G.
> Iceland.
> Zenith 701
> Rotax 912UL.
Message 8
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| Subject: | Re: I can't burp the oil tank on my 912 UL. Could |
use some help
Geoff,
In my Europa installation the oil reservoir has to be mounted slightly higher than
the 914's crankcase. Because of this, some oil works its way back into the
crankcase over time. The more oil in the crankcase, the more revs needed to
blow it out. I generally find that the oil level before burp is down almost
1/2 quart (~1/2 liter) before I do the burp. In my case it may take 15 or 20
revolutions of the prop to blow all the oil from the crankcase and get a satisfying
burp. After burp, it is back to close to the full level. Remember, you
are using piston blow-by to pressure the crank case and push out the oil. There
isn't a whole lot of blow by volume from one compression stroke so it's going
to take a fair number of compressions to get sufficient pressure/volume to
displace the oil. Don't give up, just keep flipping blades and you'll get your
burp.
Check six,
Bob Borger
Europa Kit #A221 N914XL, XS Tri-Gear, Intercooled 914, Airmaster C/S Prop
http://www.europaowners.org/forums/gallery2.php?g2_itemId=60232
http://www.biplaneforumgallery.com/index.php?cat=10046
Europa Flying!
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117
On Nov 22, 2010, at 8:19, Geoff Heap wrote:
>
> Hey guys.
> I'm not flying yet, in fact I have not started the engine yet (912 UL). I've
been neglecting it and concentrating on the building. Now I find that I cannot
'burp' the oil tank . The oil level in the tank has been real low but I know
that it was high at one time because I'm the one that filled it. I know it just
ran down into the crankcase. So I hand propped it again no end of times. No
'burp' and the oil level would not come up. So I broke the connection under the
engine and ran all the oil down into a clean plastic coffee can. I got slightly
over half a can, about a quart. I re connected the crankcase plug and poured
the retrieved oil into the tank. Dip the tank and its at FULL level. I let
it sit for 2 days and then Hand propped it over 10 full revolutions. Still nothing.
During the 2 days, some of the oil should have leaked into the crankcase.
Have I got an airlock somewhere thats preventing the oil from pumping back to
the tank? I'd appreciate some adviceGeoff
>
> --------
> Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics
intercom. Electric flaperons.
Message 9
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| Subject: | Re: I can't burp the oil tank on my 912 UL. Could use |
some help
if you are sure of your hose connections to the tank. just keep flipping the prop.
if you just keep spinning it over it will take 20 or more.... i usually turn
trough 1 or 2 fins then bring up to compression on the next and hold there
for 3 or 4 seconds then next fin to compression hold there for 3 to 5 sec. repeat
this and you can burb sooner with less rotations. give time for the air
to blead by the rings on a new tight engine
--------
Ross Aalexander: CH701 driver 912ul 450tt
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320535#320535
Message 10
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| Subject: | Re: I can't burp the oil tank on my 912 UL. Could use |
some help
I'm back to admit my sin. I was doing all this with one plug removed from each
cylinder. Bob Borger just straightened me out and do I feel dumb.
Moving on, if I may. Ross I'll try the hold method that you're talking about. It
sounds less strenuous. Even with the plugs out it was killing me.Geoff
--------
Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320536#320536
Message 11
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| Subject: | Re: I can't burp the oil tank on my 912 UL. Could use |
some help
i though i was the only one who could hear the sound of the sea when i pulled my
fingers out of my ears...... [Embarassed] [Rolling Eyes] :P [Laughing] [Laughing]
[Laughing] [Laughing] [Laughing]
--------
Ross Aalexander: CH701 driver 912ul 450tt
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320544#320544
Message 12
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| Subject: | Re: Noisy Facet fuel pump |
Hello Geoff.
I have this setup in my plane and it works very well. I only have a fuel gauge
in the header tank and some clear tubes in the fuel lines coming from the wings
to the Andair fuel valve. This way I know when the wing tanks are empty. My
fuel transfere pump makes this rattleing sound but does not effect me because
the sound of the engine drowns that out when I have to use the transfere pump.
The pump has been in the plane for 5 years. I am very happy with this setup.
Best regards,
Johann G.
Iceland.
Zenith 701
Rotax 912 UL.
----- Upprunalegt skeyti -----
Fr: "Geoff Heap" <stol10@comcast.net>
Til: rotaxengines-list@matronics.com
Sent: Mnudagur, 22. nvember, 2010 15:02:09 GMT +00:00 Monrovia
Efni: RotaxEngines-List: Re: Noisy Facet fuel pump
Yes there could be air in the system. This is the first time use and its exhibiting
"flow" peculiarities even though it looks like a simple downhill route. My
plans are circa 1990's. Small wing tanks hold about 6 gallon each and feed a
5 gallon header tank. The wing tanks are not hooked up yet. I'm probably jumping
the gun here. I should wait untill the wing are permanently on. Typically
these 3 tank systems have always had problems with flow. It looks like a "no brainer"
liquid running downhill but then it goes back uphill to fill the header
tank. From THERE it could be a "no brainer" downhill route to the engine. The
pump in the photo is not my boost pump . It is my Transfer pump. Its used to
start the flow if necessary. I'm going to shelve this for now and pick it up
again when the wings are on. playing with it now may be futile. Thanks anyway
Roger......Geoff
--------
Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=320518#320518
Attachments:
http://forums.matronics.com//files/reduced_facet_transfer_pp_172.jpg
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