 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
|
 Posted: Wed Jan 20, 2010 6:05 am Post subject: More on ethanolMore on ethanol |
 |
|
Noel,
The carbs on my British cars have all been rebuilt with alcohol resistant rubber. The problem with the bad running has to do with the age of the fuel. In a few weeks the fuel turns to "sour milk" ! Draining all the fuel and refilling solves the problem of bad running (until the next time)
In referance to the dieseling in my aircraft, I poured Lucas Racing Octane booster in my airplane tanks, shook the tar out of the wings to mix, and then flew it. This was the same load of fuel that dieseled on me three times at shut down previously. I have since flown the airplane a few times without adding fuel and it has not dieseled. It made a believer out of me. If I cannot fly the aircraft enough to keep recycling the fuel then I will use the octane booster. I am also starting to use premium vs regular in my aircraft, in an effort to lengthen the life of the fuel. My engine only requires regular.
Dick Maddux
912UL
Milton,Fl
[quote][b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
 |
tom463(at)aol.com
Guest
|
| Posted: Wed Jan 20, 2010 6:31 am Post subject: More on ethanolMore on ethanol |
|
|
The 200 hour service on my one-year-old Rotax 912ULS run on 93 Octane 10% Ethanol showed significant flaking of the carburetor floats. I now drive 30 miles each way to get non-ethanol gas. Could have been a bad batch of resin used to make the floats, or could have been the Ethanol. Can't afford the risk, no more Ethanol!!!!
Tom
N569AT
Florida
[quote][b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
|
lucien
Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM
|
| Posted: Wed Jan 20, 2010 6:56 am Post subject: Re: More on ethanolMore on ethanol |
|
|
[quote="tom463(at)aol.com"]The 200 hour service on my one-year-old Rotax 912ULS run on 93 Octane 10% Ethanol showed significant flaking of the carburetor floats. I now drive 30 miles each way to get non-ethanol gas. Could have been a bad batch of resin used to make the floats, or could have been the Ethanol. Can't afford the risk, no more Ethanol!!!!
Tom
N569AT
Florida
The floats should be OK with ethanol. As per the Rotax bulletin posted this summer, there should be nothing inside the engine or carburettors that can't deal with up to 10% ethanol.
The flaking in your case I suspect was probably due to something else (I've heard of this before even where pure gas was being used).
LS
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
LS
Titan II SS |
|
| Back to top |
|
|
hgmckay
Joined: 23 May 2006
Posts: 397
|
| Posted: Wed Jan 20, 2010 7:22 am Post subject: More on ethanolMore on ethanol |
|
|
Tom:
Your problem may not be the Ethanol. It may be simply a set of bad floats from the manufacturer. Carefully read and follow Rotax Service Instruction SI-912-021, and without question replace the floats! The internal Carb. floats should be fine using fuel with up to 10% Ethanol.
Hugh McKay
Rotax 912 UL
From: "tom463(at)aol.com" <tom463(at)aol.com>
To: rotaxengines-list(at)matronics.com
Sent: Wed, January 20, 2010 9:25:52 AM
Subject: Re: More on ethanolMore on ethanol
The 200 hour service on my one-year-old Rotax 912ULS run on 93 Octane 10% Ethanol showed significant flaking of the carburetor floats. I now drive 30 miles each way to get non-ethanol gas. Could have been a bad batch of resin used to make the floats, or could have been the Ethanol. Can't afford the risk, no more Ethanol!!!!
Tom
N569AT
Florida
| Quote: | | [b]http://www.matronics.com/Navigator?Rtronics.com/" rel=nofollow target=_blank>http://forums.matronics.com |
[quote][b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
|
Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
|
| Posted: Wed Jan 20, 2010 7:03 pm Post subject: More on ethanolMore on ethanol |
|
|
Thanks Dick
I’ve had more than a little experience with the English cars and, thank god, no experience with ethanol fuel... My recommendation to you would be to add a sump drain at the lowest point of your fuel system and drain the tanks after every flight... do the same with your car. Ethanol evaporates faster than the gas it’s in and that changes your fuel doublequick... Best thing is not to have it there. If your car is old enough a little 100LL probably wouldn’t hurt either.
I’m looking for some good octane booster for my Miata... It only has a ten gal tank (45L) and most of the local pumps have gone unisex... one nozzle for three grades of gas. The hose and internal plumbing are supposed to take almost two gallons to fill which means that for a dry tank I end up with 20% low octane gas. The engine is around 11:1 CR and doesn’t like low octanes at all!
About the Miata, one of the first 224 in North America, I’d swap it today for an MG... TF or TD... I’d think long and hard about a model A too even though I’m not fussy about the front suspension on that car.
Noel
From: owner-rotaxengines-list-server(at)matronics.com [mailto:owner-rotaxengines-list-server(at)matronics.com] On Behalf Of catz631(at)aol.com
Sent: January 20, 2010 10:35 AM
To: rotaxengines-list(at)matronics.com
Subject: Re: More on ethanolMore on ethanol
Noel,
The carbs on my British cars have all been rebuilt with alcohol resistant rubber. The problem with the bad running has to do with the age of the fuel. In a few weeks the fuel turns to "sour milk" ! Draining all the fuel and refilling solves the problem of bad running (until the next time)
In referance to the dieseling in my aircraft, I poured Lucas Racing Octane booster in my airplane tanks, shook the tar out of the wings to mix, and then flew it. This was the same load of fuel that dieseled on me three times at shut down previously. I have since flown the airplane a few times without adding fuel and it has not dieseled. It made a believer out of me. If I cannot fly the aircraft enough to keep recycling the fuel then I will use the octane booster. I am also starting to use premium vs regular in my aircraft, in an effort to lengthen the life of the fuel. My engine only requires regular.
Dick Maddux
912UL
Milton,Fl
| Quote: | | http://www.matronics.com/Navigator?RotaxEngines-List |
0123456789
[quote][b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
