Today's Message Index:
----------------------
1. 02:52 AM - Re: 912ULS oil tank installation (Icrashrc@aol.com)
2. 02:54 AM - Airbox on 912 uls (Icrashrc@aol.com)
3. 05:27 AM - Re: 912ULS oil tank installation (Catz631@aol.com)
4. 09:19 AM - Re: Rotax 912S oil (lucien)
5. 09:51 AM - carb ice revisited (Roger Lee)
6. 10:30 AM - Re: carb ice revisited (Ivan)
7. 12:14 PM - Premium Auto Fuel Ethanol Content for 912's (Dale Orth)
8. 01:43 PM - Re: Premium Auto Fuel Ethanol Content for 912's (Joe Ronco)
9. 06:23 PM - Re: carb ice revisited (jtortho@aol.com)
10. 07:53 PM - Re: carb ice revisited (Roger Lee)
Message 1
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| Subject: | Re: 912ULS oil tank installation |
I downloaded the Installation manual for the 912 uls and the specs are the
same as posted for the 914. Thanks to all!
Scott
**************Looking for a car that's sporty, fun and fits in your budget?
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| Subject: | Airbox on 912 uls |
I've seen in numerous places that the 912ULS is rated at a max of 100
horsepower with the Rotax exhaust and airbox. Does anyone have test data on how
much
the airbox helps [or hurts] compared to two separate K+N filters? Thanks,
Scott
**************Looking for a car that's sporty, fun and fits in your budget?
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| Subject: | Re: 912ULS oil tank installation |
As mentioned in the prior listing, on the Kitfox the tank is too high. As a
result when you don't fly for a while the oil migrates down into the engine and
you could have a hydraulic lock. It is a real pain! Plus you have to turn the
engine for about 75 turns or more to get the oil back in the tank. I suppose
if you left it long enough you could unport the tube in the oil tank and suck
in air (not a good thing)
Realistically though I don't know where else you could put the tank in this
installation except in your lap. There isn't any room.
Dick Maddux
Kitfox 4-1200
Rotax 912 UL
Pensacola,Fl
**************Looking for a car that's sporty, fun and fits in your budget?
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Message 4
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| Subject: | Re: Rotax 912S oil |
Roger Lee wrote:
> Hers is some good general educational info. The document is produced by AmsOil,
but has great info and lots of oils.
Were we ever able to locate the API service grades of the oils in this report?
This is the most important part, so still curious....
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=198942#198942
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| Subject: | carb ice revisited |
Hi Guys,
FYI
I know I had a hard time convincing some that the Rotax 912's with the altitude
compensating variable-venturi carbs are not susceptible to carb ice.
Here is a quote from "Aircraft Powerplants" by Bent/McKinley a recognized text
approved by the FAA. (Light reading when I have nothing better to do. )
Quote:
" The variable-venturi and pressure injection carburetors are relatively free from
carburetor carb icing troubles."
This is the big difference that pilots have to come to understand when they come
from GA aviation that have a standard carb verses a variable-venturi carb. A
few authors I have read recently would like to hear from anyone that has had
a documented carb icing with these carbs. Fixed venturi carbs are far more susceptible
to icing.
That said a doctor teaching me a class once said, "Never say Never".
So, if you want to spend the money for a fix for the the improbable carb ice issue
you can buy one of two types. These are heated rings that go between the carb
and the intake mount. One is an electrically heated ring. The other is hooked
into your hot water/coolant and circulates through the ring. The water one
is better as it does not put a hit on your electrical system.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=198954#198954
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| Subject: | Re: carb ice revisited |
Roger
One day when I did my run up on the ground, I got a progressive drop of
over 150 in RPM at idle. I repeated this twice. I figured that after a
long taxi at low throttle set me up for carb ice. I turned on the carb heat
and the rpm soon went back to normal. Waited about 10 seconds or so and
turned off the carb heat again and again the idle dropped. I turned on the
carb heat again for about 20 sec or so and then turned off the heat. The
idle then remained steady at the proper idle rpm. Had no further
occurrances that day.
I also had the above scenario occur one other day and the heat worked like a
charm.
Ivan
Phoenix, AZ
----- Original Message -----
From: "Roger Lee" <ssadiver1@yahoo.com>
Sent: Saturday, August 16, 2008 9:51 AM
Subject: RotaxEngines-List: carb ice revisited
>
> Hi Guys,
>
> FYI
>
> I know I had a hard time convincing some that the Rotax 912's with the
> altitude compensating variable-venturi carbs are not susceptible to carb
> ice.
>
> Here is a quote from "Aircraft Powerplants" by Bent/McKinley a recognized
> text approved by the FAA. (Light reading when I have nothing better to
> o. )
>
> Quote:
> " The variable-venturi and pressure injection carburetors are relatively
> free from carburetor carb icing troubles."
>
> This is the big difference that pilots have to come to understand when
> they come from GA aviation that have a standard carb verses a
> variable-venturi carb. A few authors I have read recently would like to
> hear from anyone that has had a documented carb icing with these carbs.
> Fixed venturi carbs are far more susceptible to icing.
>
>
> That said a doctor teaching me a class once said, "Never say Never".
> So, if you want to spend the money for a fix for the the improbable carb
> ice issue you can buy one of two types. These are heated rings that go
> between the carb and the intake mount. One is an electrically heated ring.
> The other is hooked into your hot water/coolant and circulates through the
> ring. The water one is better as it does not put a hit on your electrical
> system.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Service Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=198954#198954
>
>
>
Message 7
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| Subject: | Premium Auto Fuel Ethanol Content for 912's |
Hi Guys,
Can anyone tell me what brand of premium gas is best for my Rotax 912S?? I live
in Las Vegas,Nv in case it's different from State to State.
I was told to put gas into a glass jar like an Olive jar and shake it well & Ethanol
will show on the bottom. If it is over 10% don't use it. Any ideas??
Thanks,
Dale
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=198976#198976
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| Subject: | Premium Auto Fuel Ethanol Content for 912's |
Don't know which brand is best but as far as testing for ethanol it is a
little more involved. See EAA Test Kit at:
http://www.eaa.org/autofuel/autogas/test_kit.asp
Joe
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Dale Orth
Sent: Saturday, August 16, 2008 1:14 PM
Subject: RotaxEngines-List: Premium Auto Fuel Ethanol Content for 912's
<daleorth@embarqmail.com>
Hi Guys,
Can anyone tell me what brand of premium gas is best for my Rotax 912S?? I
live in Las Vegas,Nv in case it's different from State to State.
I was told to put gas into a glass jar like an Olive jar and shake it well
& Ethanol will show on the bottom. If it is over 10% don't use it. Any
ideas??
Thanks,
Dale
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=198976#198976
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| Subject: | Re: carb ice revisited |
OKay , a very timely post.? Is there any data that the electric ones work.? One
only draw 1.5 amps per carb.
http://www.ulparts.com/SearchResult.aspx?CategoryID=94
Another is listed from ireland,???? http://www.xairireland.com/access-h.htm#carbheat
?I am ready to buy some kind of carb heat for my searey project with a 912s, but
would love a little guidance.
Jim Timoney
-----Original Message-----
From: Roger Lee <ssadiver1@yahoo.com>
Sent: Sat, 16 Aug 2008 12:51 pm
Subject: RotaxEngines-List: carb ice revisited
That said a doctor teaching me a class once said, "Never say Never".
So, if you want to spend the money for a fix for the the improbable carb ice
issue you can buy one of two types. These are heated rings that go between the
carb and the intake mount. One is an electrically heated ring. The other is
hooked into your hot water/coolant and circulates through the ring. The water
one is better as it does not put a hit on your electrical system.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=198954#198954
Message 10
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| Subject: | Re: carb ice revisited |
Hi Tim,
Good question. The electric ones do work, but you still have the amp draw and managing
the wires and making sure it is always working. The coolant hot water
are better and more consistent and easier to manage over time. You can buy them
through CPS.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=199033#199033
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