RotaxEngines-List Digest Archive

Sun 10/24/10


Total Messages Posted: 18



Today's Message Index:
----------------------
 
     1. 03:18 AM - Re: 100ll 100% of the time (dave)
     2. 03:22 AM - Re: Washed gas technical considerations (dave)
     3. 03:45 AM - Re: Re: Washed gas technical considerations (bjones@dmv.com)
     4. 05:48 AM - Re: Washed gas technical considerations (Catz631@aol.com)
     5. 06:00 AM - Re: Washing Ethanol out of Gas (lucien)
     6. 06:08 AM - Re: 100ll 100% of the time (lucien)
     7. 06:32 AM - Re: Washed gas technical considerations (lucien)
     8. 07:38 AM - Rough runing above idle. (Tucsonchris)
     9. 07:57 AM - Re: Rough runing above idle. (lucien)
    10. 10:46 AM - Re: Rough runing above idle. (Carl)
    11. 02:42 PM - Ignition Module (Peter Rees)
    12. 04:55 PM - Re: Rough runing above idle. (Dan Billingsley)
    13. 04:57 PM - Re: Re: Washed gas technical considerations (Pete Christensen)
    14. 09:33 PM - Re: 100ll 100% of the time (Roger Lee)
    15. 09:35 PM - Re: Washing Ethanol out of Gas (Roger Lee)
    16. 10:08 PM - Re: Rough runing above idle. (Tucsonchris)
    17. 10:50 PM - Re: Rough runing above idle. (dave)
    18. 11:01 PM - Re: Washing Ethanol out of Gas (dave)
 
 
 


Message 1


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    Time: 03:18:44 AM PST US
    Subject: Re: 100ll 100% of the time
    From: "dave" <dave@cfisher.com>
    Roger I just passed 1100 hours in Rotax 2strokes with Ethanol gas. is there a problem with ethanol gas ? The ones that whine about it -heck might not fly much ? Armchair captains Check my videos -- Real time proof it works . I am not a supporter of ethanol gas but it here and I ain't got no choice. SO I MAKE IT WORK -------- Rotax Dealer, Ontario Canada http://www.cfisher.com/ Awesome *New Forum * http://rotaxaircraft.com/forum/ Realtime Kitfox movies to separate the internet chatter from the truth http://www.youtube.com/profile_videos?user=kitfoxflyer Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316841#316841


    Message 2


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    Time: 03:22:50 AM PST US
    Subject: Re: Washed gas technical considerations
    From: "dave" <dave@cfisher.com>
    WEll Said Roger. Same in neck of the woods. Everyone has a better idea. Used to be long before the 912 came out that some could not run a 2 stroke without fiddling and screwing it up. Some say you must use marvel mystery oil bla bla bla. etc etc etc Stick to the book and things work well. Rotax 2 strokes and 912 UL run fine on mogas. Avgas is asking for trouble with extended use. I run Rotax 582 and use NGK from Rotax only and get 150 hours + out of them. Roger I just passed 1100 hours in Rotax 2strokes with Ethanol gas. is there a proble with ethanol gas ? The ones that whine about it -heck might not fly much ? Armchair captains Check my videos -- Real time proof it works . I am not a supporter of ethanol gas but it here and I ain't got no choice. SO I MAKE IT WORK -------- Rotax Dealer, Ontario Canada http://www.cfisher.com/ Awesome *New Forum * http://rotaxaircraft.com/forum/ Realtime Kitfox movies to separate the internet chatter from the truth http://www.youtube.com/profile_videos?user=kitfoxflyer Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316843#316843


    Message 3


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    Time: 03:45:29 AM PST US
    Subject: Re: Washed gas technical considerations
    From: bjones@dmv.com
    Roger, Thanks for chiming in on the 50 : 50 100 LL to premium auto gas mix to boost octane back to acceptable levels for 100 hp 912s when using washed gas. This seems like it should work well. I wil mention that the Amoco engineers working with EAA were adamant that a smaller percentage of 100 LL would give a greater octane boost to umleaded fuel than represented by the percentage of 100 LL added because the first increases in octane required relativlely small quantities of lead. Splitting hairs here. When I took the Rotax courses and attended the seminars by Lockwood I forgot to ask and don't recall anyone else asking about using a small percentage of ashless dispersant aviation oil along with 25 hour oil changes. Given that our 912 Rotax engines have very little blow-by compared to conventional old air cooled aviation engines it would seem that we would need very little ashless dispersant behavior from our oil if we use 25 hour oil changes. I actually suspect that Shell would include ashless dispersant characteristics in thier new 4 - stroke LSA oil knowing that 100 LL will be used by many pilots but don't recall reading or hearing that they do. Do you recall anything on this. B Jones > > Hi B Jones, > > If you wash your fuel and drop the octane to 88 then you will need to use > at least a 50/50 mix of auto fuel and 100LL to get you safely back to the > 91-92 octane. This is what Rotax calls for when using 87 Octane Mogas. No > less than a 50/50 blend. > You are correct about not using a full synthetic oil because it will not > suspend lead. If you are going to use 100LL all the time at any percent > use a semi synthetic oil i.e. Aero Shell Sport Plus 4 or Golden Spectro 4 > and they absolutely do need to be motorcycle oils. Car oils do not have > the additives for our engine / gearbox system. Our engines are like our > motorcycles and the engine and gearbox oil is the same. The car oils can > not handle the "shear" issues with our gearbox. > > -------- > Roger Lee > Tucson, Az. > Light Sport Repairman - Maintenance Rated > Rotax Repair Center > 520-574-1080 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=316830#316830 > >


    Message 4


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    Time: 05:48:03 AM PST US
    From: Catz631@aol.com
    Subject: Re: Washed gas technical considerations
    Roger, You are 100% right. I too have seen wrong paper fuel filters,oil filters,sloppy work etc. Bottom line...go to school.The engine you save, might be yours. Now on to fuel. In my state of Florida we have to go 100% to ethanol at the end of the year. 99% are there now however 2 stations in my town still have no ethanol premium. After the end of the year they could dispense no ethanol fuel to boats,classic cars,airplanes,off road equipment,etc at a designated pump. We are trying to sweet talk the owners of the two stations to retain a pump for that purpose.He would do quite nicely at that pump if he does...so maybe. Another source for no alcohol fuel would be marinas,and farm supply bulk plants. One in our area will deliver 100 gal of no alcohol fuel even after the first of the year as they are not compelled to use alcohol in off road gas( airplanes are certainly off road) Something to consider Dick Maddux Kitfox 4 912UL . PS: I too am worried about my Kreem (old blend) coated fuel tanks flaking.


    Message 5


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    Time: 06:00:26 AM PST US
    Subject: Re: Washing Ethanol out of Gas
    From: "lucien" <lstavenhagen@hotmail.com>
    dave wrote: > > > > Roger I just passed 1100 hours in Rotax 2strokes with Ethanol gas. > > is there a proble with ethanol gas ? > > The ones that whine about it -heck might not fly much ? > > Armchair captains > > Check my videos -- Real time proof it works . > > I am not a supporter of ethanol gas but it here and I ain't got no choice. SO I MAKE IT WORK Roger's talking about the 912ULS which has a higher octane requirement than the 2-strokes. The 2-strokes can pretty much run on anything as long there's 2 stroke oil in it ;) But in the end, you're much better off just running the E10 premium than the witches brew you get when you wash the gas. After it's washed, you don't really know what you got running through your 20 grand engine. At least you know what the octane rating of the gas is if you leave it alone. For the 2-strokes you may still be ok, but you're still doing a whole lot of work and messing around than you need to do. E10 has been approved for the 2-strokes too (except the 447 of course) so I'd just gas up and fly.... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316848#316848


    Message 6


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    Time: 06:08:36 AM PST US
    Subject: Re: 100ll 100% of the time
    From: "lucien" <lstavenhagen@hotmail.com>
    JohnF wrote: > Ok, then what should we do? Use 15% ethanol, use 100ll 50% of the time, and > 15% ethanol 50% of time .... my personal hope is that 100ll goes away as > soon as possible and whatever substitute is made available will be better > for the 912...high enough octane, no lead...a dream proabably...it won't > happen until long after I am dead.....I really don't know what to > do...'washing' ethanol-laced fuel doesn't appeal to me and ethanol-free auto > gas is no longer available in my area. > > Your suggestion? > > > --- I tend to agree with Roger. Yes, we'll be screwed either way, but I intend to just use the E15 once we're pushed into it rather than a 100% diet of 100LL. Ever noticed how our modern cars still run like new at 100K miles now? It's not all because engine tecnhology has gotten better; a lot of that is because we went to unleaded gas back in the early 80's. Before then your engine was pretty much trashed at 100K miles and lead was a big factor in that - I remember having to scrape lead out of spark plugs and eventually the heads on engines back in high school. I'm glad those days are gone now. Ethanol will definitely be the lesser of the two evils for sure.... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316849#316849


    Message 7


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    Time: 06:32:18 AM PST US
    Subject: Re: Washed gas technical considerations
    From: "lucien" <lstavenhagen@hotmail.com>
    I'm with Roger on this too - the Rotax manuals pretty much tell you what you need to do as far as gas/oil goes. They grant no other rights ;) I mean, I do deviate a little, but the only ways I do that are with filters. I run a PureOne oil filter instead of the Rotax (the Rotax oil filter is actually the only one that has ever given me problems, it's not as well made as the PureOne). I also use large area paper fuel filters which is against Rotax' recommendations (I've used paper filters for decades with no problems, the large area gives me a fighting chance of avoiding clogs in case of gunk or something in the tank) Otherwise, whenever Roger/Thom and Rotax say jump, I ask how high ;) When it comes to ethanol, yes we'll be forced to deviate from the ethanol requirements once EPA pushes E15 onto everyone. But again I think it'll be far better than the lead in 100LL at least on a continuous basis. As Roger said, the problems with lead are long-term and don't show up right away. At least that was the case with my old cars back in the leaded mogas days. You didn't really know you had a problem until about 80K miles when the engine started to smoke and lose a little power. Then you were looking at a complete overhaul at 100K.... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316855#316855


    Message 8


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    Time: 07:38:51 AM PST US
    Subject: Rough runing above idle.
    From: "Tucsonchris" <gallchrisa@qwest.net>
    This problem appeared suddenly and really has me stumped. I can't get the throttle above idle without severe roughness. If I add choke I can get it smoothly up to 2800 or so, but without the choke, I can't move my throttle above 2000 with out the engine running rough and quitting. It idles fine after warmup any where from 1600 -1800. I had 1.5 smooth running hours before all this on my brand new 912S. I was preparing to do a pneumatic balance, so I started from scratch and redid my mechanical sync first. Then I redid it 5 more times to be sure my throttle levers were moving in unison. They are. They also reach their Hi speed stops at the same time. Like I said, this is a brand new engine that ran great out of the box initially. My mag check even at idle had consistent, but not fatal, drops on both sides. EGT'S go up fast and hover around 1000. All other readings nominal. No gas coming from carb vent lines. Slides move easily. This just isn't feeling like out of balance carbs--but I hope someone has some ideas. It reminds me of a distributor that won't advance on acceleration... Tucson Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316859#316859


    Message 9


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    Time: 07:57:21 AM PST US
    Subject: Re: Rough runing above idle.
    From: "lucien" <lstavenhagen@hotmail.com>
    Tucsonchris wrote: > This problem appeared suddenly and really has me stumped. > > I can't get the throttle above idle without severe roughness. If I add choke I can get it smoothly up to 2800 or so, but without the choke, I can't move my throttle above 2000 with out the engine running rough and quitting. It idles fine after warmup any where from 1600 -1800. > > I had 1.5 smooth running hours before all this on my brand new 912S. I was preparing to do a pneumatic balance, so I started from scratch and redid my mechanical sync first. Then I redid it 5 more times to be sure my throttle levers were moving in unison. They are. They also reach their Hi speed stops at the same time. > > Like I said, this is a brand new engine that ran great out of the box initially. My mag check even at idle had consistent, but not fatal, drops on both sides. EGT'S go up fast and hover around 1000. All other readings nominal. No gas coming from carb vent lines. Slides move easily. > > This just isn't feeling like out of balance carbs--but I hope someone has some ideas. It reminds me of a distributor that won't advance on acceleration... > > Tucson Chris Sounds like crapola in the carbs to me. What makes me think that is you say it came on suddenly and that engaging the chokes makes the engine go ahead and run up. So sounds more like fuel starvation rather than too much fuel. If it's a new installation, I'd personally go through and redo your fuel lines too if you do discover it's debris in the carbs. Flush the entire thing, check for any lines/connectors not made properly etc..... BTDT and fortunately the problem showed itself on the t/o run before I managed to get in the air..... ;) LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316860#316860


    Message 10


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    Time: 10:46:18 AM PST US
    From: Carl <b.carl@sympatico.ca>
    Subject: Re: Rough runing above idle.
    Chris It looks like the slide in one of your carbs may not be opening or the main jet is clogged. Do a vacuum balance check to see which carb is the cause and trouble-shoot that carb. Carl 912 ul ----- Original Message ----- From: "Tucsonchris" <gallchrisa@qwest.net> Sent: Sunday, October 24, 2010 10:36 AM Subject: RotaxEngines-List: Rough runing above idle. > <gallchrisa@qwest.net> > > This problem appeared suddenly and really has me stumped. > > I can't get the throttle above idle without severe roughness. If I add > choke I can get it smoothly up to 2800 or so, but without the choke, I > can't move my throttle above 2000 with out the engine running rough and > quitting. It idles fine after warmup any where from 1600 -1800. > > I had 1.5 smooth running hours before all this on my brand new 912S. I was > preparing to do a pneumatic balance, so I started from scratch and redid > my mechanical sync first. Then I redid it 5 more times to be sure my > throttle levers were moving in unison. They are. They also reach their Hi > speed stops at the same time. > > Like I said, this is a brand new engine that ran great out of the box > initially. My mag check even at idle had consistent, but not fatal, drops > on both sides. EGT'S go up fast and hover around 1000. All other readings > nominal. No gas coming from carb vent lines. Slides move easily. > > This just isn't feeling like out of balance carbs--but I hope someone has > some ideas. It reminds me of a distributor that won't advance on > acceleration... > > Tucson Chris > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=316859#316859 > > >


    Message 11


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    Time: 02:42:20 PM PST US
    From: "Peter Rees" <peter.rees01@tiscali.co.uk>
    Subject: Ignition Module
    By a process of substitution, it would appear that one of the 2 ignition modules on our 912 powered Europa has developed an intermitant fault. The price for these in the UK is a shade under 700!! Does anyone know a way of getting hold of one at a more attractive price than that? (looking for the version with the 4 way plug). Thanks Peter (G-MFHI)


    Message 12


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    Time: 04:55:12 PM PST US
    From: Dan Billingsley <dan@azshowersolutions.com>
    Subject: Re: Rough runing above idle.
    Chris, We are all taking stabs at what could be the problem, so I will give you one more thing to look at...We have a couple of guys on another list that had this exact problem...new engine, about an hour on the thing, then wham...rough idle. It has boiled down to using ethanol fuel in fiberglass tanks. The tell-tale sign was a brown film (sticky stuff) that turns into a glaze of sorts inside the carb and everywhere thereafter. Check the ventrui area of your carb for the brown sticky stuff. If you have fiberglass tanks...look inside them and see if the fuel has turned brown or tan. if it has, you will want to drain the tanks.The fix for these other guys was taking the carbs apart ASAP and cleaning them with carb cleaner... the longer you wait the harder it is to clean the stuff off. They then had to make a choice...change out the tanks with ones that are ethanol friendly or clean out the existing tanks very well and then slosh with Kreem (which is impervious to anything thrown at it). Best Wishes Dan ----- Original Message ---- From: Carl <b.carl@sympatico.ca> Sent: Sun, October 24, 2010 10:43:38 AM Subject: Re: RotaxEngines-List: Rough runing above idle. Chris It looks like the slide in one of your carbs may not be opening or the main jet is clogged. Do a vacuum balance check to see which carb is the cause and trouble-shoot that carb. Carl 912 ul ----- Original Message ----- From: "Tucsonchris" <gallchrisa@qwest.net> Sent: Sunday, October 24, 2010 10:36 AM Subject: RotaxEngines-List: Rough runing above idle. > > This problem appeared suddenly and really has me stumped. > > I can't get the throttle above idle without severe roughness. If I add choke I >can get it smoothly up to 2800 or so, but without the choke, I can't move my >throttle above 2000 with out the engine running rough and quitting. It idles >fine after warmup any where from 1600 -1800. > > I had 1.5 smooth running hours before all this on my brand new 912S. I was >preparing to do a pneumatic balance, so I started from scratch and redid my >mechanical sync first. Then I redid it 5 more times to be sure my throttle >levers were moving in unison. They are. They also reach their Hi speed stops at >the same time. > > Like I said, this is a brand new engine that ran great out of the box >initially. My mag check even at idle had consistent, but not fatal, drops on >both sides. EGT'S go up fast and hover around 1000. All other readings nominal. >No gas coming from carb vent lines. Slides move easily. > > This just isn't feeling like out of balance carbs--but I hope someone has some >ideas. It reminds me of a distributor that won't advance on acceleration... > > Tucson Chris > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=316859#316859 > > > > > > > > > > >


    Message 13


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    Time: 04:57:01 PM PST US
    From: Pete Christensen <pchristensen10@austin.rr.com>
    Subject: Re: Washed gas technical considerations
    Another consideration for washing gas is that beside ruining fiberglass tanks ethanol tends to rust out steel header tanks. I get rust flakes in my gascolator from the small amount of water that condenses in my tanks. I believe it is coming from my header tank. I'll soon have to deal with this issue. Pete On 10/23/2010 9:46 PM, bjones@dmv.com wrote: > --> RotaxEngines-List message posted by: bjones@dmv.com > > We may be missing important differences between Rotax 912 4-stroke engines > and Rotax 2-strokes. The 4-strokes risk lead plating out of the crancase > oil. Rotax 2 - strokes do not have crancase oil and therefor are different > beasts. In Rotax 4 - strokes, lead plating occurs because our Rotax > approved 4-stroke crankcase oils do not suspend lead that blows by the > piston to cylinder interface nearly as well as conventional ashless > dispersent aviation oils, which are not recommened for Rotax 4 - strokes. > > With this difference in mind, for the 4-stroke 912s, Consider washed gas > with about 30 percent 100 LL added plus 25 hour oil changes. These two > protocols should do 2 things. One is prevent significant lead plating. > Second is, insure adequate octane for the 100 hp Rotax. Read more details > below. > > AMOCO engineers working with the EAA on thier auto gas STCs for General > Aviation engines years ago, reported that even 30 percent 100 LL, when > mixed with 70 percent high octane unleaded auto gas would boost the octane > of the auto gas enough to provide an octane rating much higher than the > base auto gas and make octane no problem in high compression ratio > mid-1960s Corvettes and other muscle car engines as well as the Lycoming > in my normally aspirated Mooney. > > At 30 percent 100 LL, The large amount of lead in the 100 LL should > return the 2 - 3 octane points lost washing premium auto gas so that 100 > hp Rotax engines are happy. If anyone knows better, please chime in. This > may be important to the 15 percent ethanol discussion. > > As an aside, the premium auto gas was bad for the wet wing gas tank > sealant in the Mooney, accelerating weapage and requiring resealing which > Mooney wet wing tanks were notorious for under the best of circumstances. > > The 25 hour oil changes in the 912s may also be valuable so that the small > amount of lead that blows by the 4-stroke Rotax rings is carried out by > our Rotax approved oils. Longer oil change intervals may overcome the oils > capacity to suspend lead. Keep in mind that 912s have very little blow by > compared to big bore aircooled general aviation aircraft engines which use > 100 LL exclusively. > > It may be wise to Avoid fully synthetic oils in 912s when using a fuel mix > with 100 LL, unless they have ashless dispersant qualities. Fully > synthetic oils typically hold very little lead in suspension. Unlike our > Rotax 912s, big aircooled aviation engines require Aviation grade ashless > dispercent oils which hold lots of lead in suspension. This is necessary > because Continentals and Lycomings have very wide piston to cylinder > tolerances allowing lots of lead blow by compared to 912s. Many will > remember that Fully synthetic Mobil 1 caused engine failures because it > did not keep lead in suspension, ruining engines. Fully synthetic Mobil 1 > was pulled from aviation use because of this. > > By the way, in addition to the different considerations between 4-stroke > and 2-stroke engines in terms of 100 LL use, my Kitfox has FIBERGLASS > TANKS THAT ARE NOT ETHANOL RESISTANT, so washing premium auto gas and > adding 30 percent 100 LL seems like a logical alternative. I get plenty of > octance and my fuel filters are not clogged by deteriorating fiberglass > from the effect of ethanol on the gas tanks. > > I hope others weigh in on these comments, maybe with more current > technical knowledge. > > BJ > N154K Kitfox IV 80 hp Rotax > N626NR PA 39 Turbocharged Twin Comanche > > > --> RotaxEngines-List message posted by: "John Fasching" >> <n29cx@ridgeviewtel.us> >> >> Ok, then what should we do? Use 15% ethanol, use 100ll 50% of the time, >> and >> 15% ethanol 50% of time .... my personal hope is that 100ll goes away as >> soon as possible and whatever substitute is made available will be better >> for the 912...high enough octane, no lead...a dream proabably...it won't >> happen until long after I am dead.....I really don't know what to >> do...'washing' ethanol-laced fuel doesn't appeal to me and ethanol-free >> auto >> gas is no longer available in my area. >> >> Your suggestion? >> >> >> ----- Original Message ----- >> From: "Roger Lee"<ssadiver1@yahoo.com> >> To:<rotaxengines-list@matronics.com> >> Sent: Saturday, October 23, 2010 4:33 PM >> Subject: RotaxEngines-List: Re: 100ll 100% of the time >> >> >>> --> RotaxEngines-List message posted by: "Roger Lee" >>> <ssadiver1@yahoo.com> >>> >>> Hi John, >>> >>> Sounds like you have a good handle on the use of 100LL. >>> Buuuttt, If you have seen any pictures or a leaded engine or have seen >>> the engine top ends and gearbox's I have you wouldn't use 100LL unless >>> forced to during travel. When you see the lead paste build up in the oil >>> tank you will need to de-lead the gearbox at 800 hours not 1000 hrs. and >>> send the gearbox clutch in to have the lead removed or else it won't >>> properly work any more, or if you had seen the lead on top of the >>> pistons >>> and around the valves you may want to reconsider if you can. Rotax >>> advises >>> to use 91 Oct and stay away from 100LL if at all possible. We just gave >>> a >>> class and some pictures were shown to the students of the lead deposits. >>> I >>> think it made believers out of them. >>> >>> -------- >>> Roger Lee >>> Tucson, Az. >>> Light Sport Repairman - Maintenance Rated >>> Rotax Repair Center >>> 520-574-1080 >>> >>> >>> >>> >>> Read this topic online here: >>> >>> http://forums.matronics.com/viewtopic.php?p=316798#316798 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >> >> > >


    Message 14


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    Time: 09:33:04 PM PST US
    Subject: Re: 100ll 100% of the time
    From: "Roger Lee" <ssadiver1@yahoo.com>
    I'm with you guys. I don't like 100LL and I don't care for ethanol either, but since I have to pick one over the other, ethanol wins hands down compared to all the leading. The lead really is the worst choice. I don't see the government getting rid of ethanol so you and I might as well learn to deal with it, but we can do it more on ours terms by making our fuel systems ethanol safe. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316926#316926


    Message 15


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    Time: 09:35:19 PM PST US
    Subject: Re: Washing Ethanol out of Gas
    From: "Roger Lee" <ssadiver1@yahoo.com>
    Lucien said it all. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316927#316927


    Message 16


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    Time: 10:08:15 PM PST US
    Subject: Re: Rough runing above idle.
    From: "Tucsonchris" <gallchrisa@qwest.net>
    Problem solved-- My tanks were dissolving. These are the newest alcohol resistant tanks from Kitfox, BTW, so obviously nothing is truly alcohol resistant any more. My only solution is 100 LL--while it lasts. thanks for all the feedback. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316931#316931


    Message 17


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    Time: 10:50:37 PM PST US
    Subject: Re: Rough runing above idle.
    From: "dave" <dave@cfisher.com>
    http://www.wingtanks.com/ looks like same material the plastic gas cans are made of. My Kitfox is 1992 vintage and has plastic dash tank and 2 wings tanks of fiberglass......... NO LEAKS YET !! I have over 1000 hours of ethanol gas usage on this plane alone. Better look at > http://www.wingtanks.com/ I iwll buy these if mine ever start to leak. -------- Rotax Dealer, Ontario Canada http://www.cfisher.com/ http://www.kitfoxflyer.com/ http://rotaxaircraft.com/forum/ Realtime Kitfox movies to separate the internet chatter from the truth http://www.youtube.com/user/kitfoxflyer Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316933#316933


    Message 18


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    Time: 11:01:35 PM PST US
    Subject: Re: Washing Ethanol out of Gas
    From: "dave" <dave@cfisher.com>
    LS, I know the 912 s well. Reg mogas no good -- Premium works fine. Most here have no ethanol in it yet in Ontario Canada. I know of many that use premium grade on 912 ul and 2 strokes because of what ever reason. - I never had troubles with 6 month old gas in 2 strokes but I do hear pinging once in a while if gas is old or new. -------- Rotax Dealer, Ontario Canada http://www.cfisher.com/ http://www.kitfoxflyer.com/ http://rotaxaircraft.com/forum/ Realtime Kitfox movies to separate the internet chatter from the truth http://www.youtube.com/user/kitfoxflyer Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316934#316934




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