RotaxEngines-List Digest Archive

Thu 11/18/10


Total Messages Posted: 15



Today's Message Index:
----------------------
 
     1. 05:07 AM - Re: Rotax 912 throttle return springs (Thom Riddle)
     2. 05:36 AM - Re: Rotax 912 throttle return springs (dashwood)
     3. 06:10 AM - Re: Rotax 912 throttle return springs (lucien)
     4. 06:40 AM - Re: Re: Rotax 912 throttle return springs (Carlos Trigo)
     5. 10:44 AM - Re: Re: Rotax 912 throttle return springs (FLYaDIVE)
     6. 12:30 PM - Re: Rotax 912 throttle return springs (dashwood)
     7. 12:36 PM - Re: Rotax 912 throttle return springs (dashwood)
     8. 12:59 PM - Re: Re: Rotax 912 throttle return springs (Kevin Klinefelter)
     9. 02:34 PM - Re: Re: Rotax 912 throttle return springs (Richard Girard)
    10. 03:10 PM - Re: Re: Rotax 912 throttle return springs (FLYaDIVE)
    11. 05:51 PM - Re: Rotax 912 throttle return springs (Noel Loveys)
    12. 06:30 PM - Re: Re: Rotax 912 throttle return springs (Noel Loveys)
    13. 07:58 PM - Re: Re: Rotax 912 throttle return springs (Jim_and_Lucy Chuk)
    14. 08:13 PM - Re: Re: Rotax 912 throttle return springs (Joel M.)
    15. 08:36 PM - Re: Re: Rotax 912 throttle return springs (Richard Girard)
 
 
 


Message 1


  • INDEX
  • Back to Main INDEX
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:07:17 AM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: "Thom Riddle" <riddletr@gmail.com>
    I've never seen these springs to get noticeably weaker over time. I'm not saying they can't but spring steel takes a VERY LONG time to loose its springiness in normal service. I suspect your cables might need lubrication or they have a tighter radius than desirable -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 Everyone is entitled to his own opinion, but not his own facts. Daniel Patrick Moynihan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319901#319901


    Message 2


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:36:52 AM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: "dashwood" <dashwoodlock@hotmail.com>
    i had the same problem. make sure the cable and linkages are all free, and carbs are set right and all engine mounts are in good shape.. I had to change my springs once. no biggie and not expensive. mostly did it for piece of mind. if you think its a problem its not worth fussin about just change them.having someone else Tell you something is good and then still worrying about it isn't worth the stress -------- Ross Aalexander: CH701 driver 912ul 450tt Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319905#319905


    Message 3


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:10:25 AM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: "lucien" <lstavenhagen@hotmail.com>
    One thing I do too is store the plane with the throttles open. That releases the tension on the springs. Does it help? Who knows, but it makes me feel a little better anyway ;) LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319910#319910


    Message 4


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:40:26 AM PST US
    From: "Carlos Trigo" <trigo@mail.telepac.pt>
    Subject: Re: Rotax 912 throttle return springs
    That's right Lucien, that's the right way to do it! After the last shutdown of the day, push that throttle all the way in. But don't forget to put a line on your check list, on the Start-up procedure, that goes something like "Throttle - pull back to idle", obviously before the "Start the engine" line Carlos > -----Original Message----- > From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines- > list-server@matronics.com] On Behalf Of lucien > Sent: quinta-feira, 18 de Novembro de 2010 14:07 > To: rotaxengines-list@matronics.com > Subject: RotaxEngines-List: Re: Rotax 912 throttle return springs > <lstavenhagen@hotmail.com> > > One thing I do too is store the plane with the throttles open. That releases the > tension on the springs. Does it help? Who knows, but it makes me feel a little better > anyway ;) > > LS > > -------- > LS > Titan II SS > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=319910#319910 > > > > > > > > >


    Message 5


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 10:44:28 AM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: FLYaDIVE <flyadive@gmail.com>
    Hey Guys: I know I'm late on entering this Throttle Return Spring discussion. But the questions I have are: 1 - Why is there a throttle return spring? 2 - What position does it return the Throttle to? Barry On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: m > > > > I've never seen these springs to get noticeably weaker over time. I'm not > saying they can't but spring steel takes a VERY LONG time to loose its > springiness in normal service. > > I suspect your cables might need lubrication or they have a tighter radiu s > than desirable > > -------- > Thom Riddle > Buffalo, NY (9G0) > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 > > > =93Everyone is entitled to his own opinion, but not his own facts.=94 > Daniel Patrick Moynihan > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=319901#319901 > > =========== =========== =========== =========== > >


    Message 6


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 12:30:35 PM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: "dashwood" <dashwoodlock@hotmail.com>
    just a question... does leavin the carbs wide open let air into the engine, good or bad,,, and let more air into the carb chambers to allow varnishing inside little passages.. and / or to engines exposed to the weather maybe water into the engine///. i understand the filters are in place but i have hear of engines being drowned in heavy rain. mostly from water saturation of the filters causing problems though. -------- Ross Aalexander: CH701 driver 912ul 450tt Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319955#319955


    Message 7


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 12:36:28 PM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: "dashwood" <dashwoodlock@hotmail.com>
    quote=== I know I'm late on entering this Throttle Return Spring discussion. But the questions I have are: 1 - Why is there a throttle return spring? 2 - Whatpositiondoes it return the Throttle to? Barry the spring is on each carb so if there is a throttle linkage problem( break or failure of a connection) the engine goes to full power. good on takoff and landings , not soo good at the fuel pump or near a hanger.. -------- Ross Aalexander: CH701 driver 912ul 450tt Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319956#319956


    Message 8


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 12:59:16 PM PST US
    From: "Kevin Klinefelter" <kevann@gotsky.com>
    Subject: Re: Rotax 912 throttle return springs
    The throttle return springs pull the throttles wide open. So if the throttle cable fails, you have lots of power instead of no power. Kevin ----- Original Message ----- From: FLYaDIVE To: rotaxengines-list@matronics.com Sent: Thursday, November 18, 2010 10:41 AM Subject: Re: RotaxEngines-List: Re: Rotax 912 throttle return springs Hey Guys: I know I'm late on entering this Throttle Return Spring discussion. But the questions I have are: 1 - Why is there a throttle return spring? 2 - What position does it return the Throttle to? Barry On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: <riddletr@gmail.com> I've never seen these springs to get noticeably weaker over time. I'm not saying they can't but spring steel takes a VERY LONG time to loose its springiness in normal service. I suspect your cables might need lubrication or they have a tighter radius than desirable -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 =93Everyone is entitled to his own opinion, but not his own facts.=94 Daniel Patrick Moynihan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319901#319901 ========== ="_blank">www.aeroelectric.com ooks.com" target="_blank">www.buildersbooks.com et="_blank">www.homebuilthelp.com ="_blank">http://www.matronics.com/contribution le, List Admin. ========== -List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List ========== http://forums.matronics.com ==========


    Message 9


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 02:34:08 PM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: Richard Girard <aslsa.rng@gmail.com>
    Barry, Unlike those on an automobile or other conveyance, the throttle return spring on an aircraft is there to make sure that if the throttle cable breaks the carb goes to wide open throttle. Rick Girard On Thu, Nov 18, 2010 at 12:41 PM, FLYaDIVE <flyadive@gmail.com> wrote: > Hey Guys: > > I know I'm late on entering this Throttle Return Spring discussion. > But the questions I have are: > 1 - Why is there a throttle return spring? > 2 - What position does it return the Throttle to? > > Barry > > On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: > >> riddletr@gmail.com> >> >> I've never seen these springs to get noticeably weaker over time. I'm no t >> saying they can't but spring steel takes a VERY LONG time to loose its >> springiness in normal service. >> >> I suspect your cables might need lubrication or they have a tighter radi us >> than desirable >> >> -------- >> Thom Riddle >> Buffalo, NY (9G0) >> Kolb Slingshot SS-021 >> Jabiru 2200A #1574 >> Tennessee Prop 64x32 >> >> >> =93Everyone is entitled to his own opinion, but not his own facts.=94 >> Daniel Patrick Moynihan >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=319901#319901 >> >> >> >> >> >> >> >> ========== >> ="_blank">www.aeroelectric.com >> ooks.com" target="_blank">www.buildersbooks.com >> et="_blank">www.homebuilthelp.com >> ="_blank">http://www.matronics.com/contribution >> le, List Admin. >> ========== >> -List" target="_blank"> >> http://www.matronics.com/Navigator?RotaxEngines-List >> ========== >> http://forums.matronics.com >> ========== >> >> >> >> > * > =========== =========== =========== ============* > > -- Zulu Delta Kolb Mk IIIC 582 Gray head 4.00 C gearbox 3 blade WD Thanks, Homer GBYM It is not bigotry to be certain we are right; but it is bigotry to be unabl e to imagine how we might possibly have gone wrong. - G.K. Chesterton


    Message 10


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 03:10:43 PM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: FLYaDIVE <flyadive@gmail.com>
    Rick: That is the answer I was hopping to get. I do not see any reason to go the other way. Thanks Rick, Barry On Thu, Nov 18, 2010 at 5:29 PM, Richard Girard <aslsa.rng@gmail.com> wrote : > Barry, Unlike those on an automobile or other conveyance, the throttle > return spring on an aircraft is there to make sure that if the throttle > cable breaks the carb goes to wide open throttle. > > Rick Girard > > On Thu, Nov 18, 2010 at 12:41 PM, FLYaDIVE <flyadive@gmail.com> wrote: > >> Hey Guys: >> >> I know I'm late on entering this Throttle Return Spring discussion. >> But the questions I have are: >> 1 - Why is there a throttle return spring? >> 2 - What position does it return the Throttle to? >> >> Barry >> >> On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: >> >>> riddletr@gmail.com> >>> >>> I've never seen these springs to get noticeably weaker over time. I'm n ot >>> saying they can't but spring steel takes a VERY LONG time to loose its >>> springiness in normal service. >>> >>> I suspect your cables might need lubrication or they have a tighter >>> radius than desirable >>> >>> -------- >>> Thom Riddle >>> Buffalo, NY (9G0) >>> Kolb Slingshot SS-021 >>> Jabiru 2200A #1574 >>> Tennessee Prop 64x32 >>> >>> >>> =93Everyone is entitled to his own opinion, but not his own facts.=94 >>> Daniel Patrick Moynihan >>> >>> >>> >>> >>> Read this topic online here: >>> >>> http://forums.matronics.com/viewtopic.php?p=319901#319901 >>> >>> >>> >>> >>> >>> >>> >>> ========== >>> ="_blank">www.aeroelectric.com >>> ooks.com" target="_blank">www.buildersbooks.com >>> et="_blank">www.homebuilthelp.com >>> ="_blank">http://www.matronics.com/contribution >>> le, List Admin. >>> ========== >>> -List" target="_blank"> >>> http://www.matronics.com/Navigator?RotaxEngines-List >>> ========== >>> http://forums.matronics.com >>> ========== >>> >>> >>> >>> >> * >> >> _blank">www.aeroelectric.com >> >> .com" target="_blank">www.buildersbooks.com >> >> ="_blank">www.homebuilthelp.com >> _blank">http://www.matronics.com/contribution >> >> ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-L ist >> >> tp://forums.matronics.com* >> >> > > > -- > Zulu Delta > Kolb Mk IIIC > 582 Gray head > 4.00 C gearbox > 3 blade WD > Thanks, Homer GBYM > > It is not bigotry to be certain we are right; but it is bigotry to be > unable to imagine how we might possibly have gone wrong. > - G.K. Chesterton > > > * > =========== =========== =========== ============* > >


    Message 11


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:51:18 PM PST US
    From: "Noel Loveys" <noelloveys@yahoo.ca>
    Subject: Rotax 912 throttle return springs
    I always thought the springs on the 912 were set to open the throttles not close them. Am I wrong? Noel -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of robertbroadwelljr Sent: November 18, 2010 1:33 AM Subject: RotaxEngines-List: Rotax 912 throttle return springs <robertbroadwelljr@yahoo.com> I have a Sport Cruiser with a 912ULS engine. I noticed the other day while doing an inspection that the throttle return springs seem to be weakening. When the throttle is pushed to the WOT position, there seems not to be enough pull to smartly engage the the throttle to the wide open stop. When the plane sits idle, the throttle is closed. In this position, the springs remain under maximum stretch tension. I am going to replace them, but was wondering if anyone else has encountered this situation or any complications from it. Advance thanks for any replies. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319887#319887


    Message 12


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:30:48 PM PST US
    From: "Noel Loveys" <noelloveys@yahoo.ca>
    Subject: Re: Rotax 912 throttle return springs
    Then the question should be why have a spring at all... From what I see all it does is put pressure on the throttle cables. Wouldn't it be better not to have springs at all? BTW the 582 with the Bing carbs will go to idle if the cable breaks Noel From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Richard Girard Sent: November 18, 2010 6:59 PM Subject: Re: RotaxEngines-List: Re: Rotax 912 throttle return springs Barry, Unlike those on an automobile or other conveyance, the throttle return spring on an aircraft is there to make sure that if the throttle cable breaks the carb goes to wide open throttle. Rick Girard On Thu, Nov 18, 2010 at 12:41 PM, FLYaDIVE <flyadive@gmail.com> wrote: Hey Guys: I know I'm late on entering this Throttle Return Spring discussion. But the questions I have are: 1 - Why is there a throttle return spring? 2 - What position does it return the Throttle to? Barry On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: I've never seen these springs to get noticeably weaker over time. I'm not saying they can't but spring steel takes a VERY LONG time to loose its springiness in normal service. I suspect your cables might need lubrication or they have a tighter radius than desirable -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 "Everyone is entitled to his own opinion, but not his own facts." Daniel Patrick Moynihan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=319901#319901 ========== ="_blank">www.aeroelectric.com ooks.com" target="_blank">www.buildersbooks.com et="_blank">www.homebuilthelp.com ="_blank">http://www.matronics.com/contribution le, List Admin. ========== -List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List ========== http://forums.matronics.com ========== _blank">www.aeroelectric.com .com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com _blank">http://www.matronics.com/contribution ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List tp://forums.matronics.com -- Zulu Delta Kolb Mk IIIC 582 Gray head 4.00 C gearbox 3 blade WD Thanks, Homer GBYM It is not bigotry to be certain we are right; but it is bigotry to be unable to imagine how we might possibly have gone wrong. - G.K. Chesterton


    Message 13


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:58:34 PM PST US
    From: Jim_and_Lucy Chuk <thesupe@hotmail.com>
    Subject: Re: Rotax 912 throttle return springs
    These (912) carbs are constant velosity carbs and the slides are raised or lowered by more or less vacuum. When the engine is not running=2C the slid es are at the bottom=2C no matter where the throttel is set. Take care=2C Jim Chuk > Subject: RotaxEngines-List: Re: Rotax 912 throttle return springs > From: dashwoodlock@hotmail.com > Date: Thu=2C 18 Nov 2010 12:27:46 -0800 > To: rotaxengines-list@matronics.com > .com> > > just a question... does leavin the carbs wide open let air into the engin e=2C good or bad=2C=2C=2C and let more air into the carb chambers to allow varnishing inside little passages.. and / or to engines exposed to the weat her maybe water into the engine///. i understand the filters are in place b ut i have hear of engines being drowned in heavy rain. mostly from water sa turation of the filters causing problems though. > > -------- > Ross Aalexander: CH701 driver 912ul 450tt > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=319955#319955 > > > > > > > =========== =========== =========== =========== > > >


    Message 14


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 08:13:33 PM PST US
    From: "Joel M." <dirtfly7@yahoo.com>
    Subject: Re: Rotax 912 throttle return springs
    --- On Thu, 11/18/10, FLYaDIVE <flyadive@gmail.com> wrote: From: FLYaDIVE <flyadive@gmail.com> Subject: Re: RotaxEngines-List: Re: Rotax 912 throttle return springs Rick: That is the answer I was hopping to get. =C2-I do not see any reason to g o the other way. Thanks Rick,Barry On Thu, Nov 18, 2010 at 5:29 PM, Richard Girard <aslsa.rng@gmail.com> wrote : =0ABarry, Unlike those on an automobile or other conveyance, the throttle r eturn spring on an aircraft is there to make sure that if the throttle cabl e breaks the carb goes to wide open throttle.=0A Rick Girard =0A On Thu, Nov 18, 2010 at 12:41 PM, FLYaDIVE <flyadive@gmail.com> wrote: =0A=0AHey Guys: I know I'm late on entering this Throttle Return Spring discussion. =C2- =0ABut the questions I have are:1 - Why is there a throttle return spring? =0A2 - What=C2-position=C2-does it return the Throttle to? Barry=C2-=C2-=0A On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: mail.com> =0A =0AI've never seen these springs to get noticeably weaker over time. I'm no t saying they can't but spring steel takes a VERY LONG time to loose its sp ringiness in normal service. =0A =0AI suspect your cables might need lubrication or they have a tighter radi us than desirable =0A =0A-------- =0AThom Riddle =0ABuffalo, NY (9G0) =0AKolb Slingshot SS-021 =0AJabiru 2200A #1574 =0ATennessee Prop 64x32 =0A =0A =0A=9CEveryone is entitled to his own opinion, but not his own facts. =9D =0ADaniel Patrick Moynihan =0A =0A =0A =0A =0ARead this topic online here: =0A =0Ahttp://forums.matronics.com/viewtopic.php?p=319901#319901 =0A =0A =0A =0A =0A =0A =0A =0A========== =0A="_blank">www.aeroelectric.com =0Aooks.com" target="_blank">www.buildersbooks.com =0Aet="_blank">www.homebuilthelp.com =0A="_blank">http://www.matronics.com/contribution =0Ale, List Admin. =0A========== =0A-List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines -List =0A========== =0Ahttp://forums.matronics.com =0A========== =0A =0A =0A =0A =0A=0A _blank">www.aeroelectric.com .com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com _blank">http://www.matronics.com/contribution ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List tp://forums.matronics.com -- Zulu DeltaKolb Mk IIIC582 Gray head4.00 C gearbox3 blade WDThanks, Homer GB YM =0A=0AIt is not bigotry to be certain we are right; but it is bigotry to be unable to imagine how we might possibly have gone wrong.=C2--=C2-G.K. Chesterton=0A=0A =0A=0A=0A _blank">www.aeroelectric.com .com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com _blank">http://www.matronics.com/contribution ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List tp://forums.matronics.com =0A=0A Rick, On some Aircraft like the Rans S-7S the springs are changed on the engine to where the spring will pull it to idle. This is a safety feature that w ill keep your aircraft from running away from you on the ground and causing major destruction.


    Message 15


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 08:36:13 PM PST US
    Subject: Re: Rotax 912 throttle return springs
    From: Richard Girard <aslsa.rng@gmail.com>
    Noel, You're right about the Bing 54 on the 582, a fact that keeps my cable s lubed and inspected to excess. Which would you rather have if a throttle cable breaks an engine at WOT or an engine at idle. Think miles of trees underneath you and no clearing in sight. Jim, The throttle cable on the Bing 64 is connected to the throttle butterfly, not the piston. The butterfly sets the throttle and the piston does fine adjustment of the mixture my raising and lowering the jet needle in response to atmospheric pressure. Joel, if that was your comment in the tiny, tiny print about changing over the throttle springs to pull the butterfly to idle, wheel chocks and checking the throttle position before starting the engine can keep your plane from running away. IF you're at 2000' over a forest with your wife or child on board when a throttle cable breaks and the engine goes to idle, I truly doubt you'll be calling that a "Safety Feature" right about then. Rick Girard On Thu, Nov 18, 2010 at 8:24 PM, Noel Loveys <noelloveys@yahoo.ca> wrote: > Then the question should be why have a spring at all... From what I see > all it does is put pressure on the throttle cables. Wouldn=92t it be bet ter > not to have springs at all? > > > BTW the 582 with the Bing carbs will go to idle if the cable breaks > > > Noel > > > *From:* owner-rotaxengines-list-server@matronics.com [mailto: > owner-rotaxengines-list-server@matronics.com] *On Behalf Of *Richard > Girard > *Sent:* November 18, 2010 6:59 PM > *To:* rotaxengines-list@matronics.com > *Subject:* Re: RotaxEngines-List: Re: Rotax 912 throttle return springs > > > Barry, Unlike those on an automobile or other conveyance, the throttle > return spring on an aircraft is there to make sure that if the throttle > cable breaks the carb goes to wide open throttle. > > > Rick Girard > > On Thu, Nov 18, 2010 at 12:41 PM, FLYaDIVE <flyadive@gmail.com> wrote: > > Hey Guys: > > > I know I'm late on entering this Throttle Return Spring discussion. > > But the questions I have are: > > 1 - Why is there a throttle return spring? > > 2 - What position does it return the Throttle to? > > > Barry > > > On Thu, Nov 18, 2010 at 8:04 AM, Thom Riddle <riddletr@gmail.com> wrote: > m > > > > I've never seen these springs to get noticeably weaker over time. I'm not > saying they can't but spring steel takes a VERY LONG time to loose its > springiness in normal service. > > I suspect your cables might need lubrication or they have a tighter radiu s > than desirable > > -------- > Thom Riddle > Buffalo, NY (9G0) > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 > > > =93Everyone is entitled to his own opinion, but not his own facts.=94 > Daniel Patrick Moynihan > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=319901#319901 > > > ========== > ="_blank">www.aeroelectric.com > ooks.com" target="_blank">www.buildersbooks.com > et="_blank">www.homebuilthelp.com > ="_blank">http://www.matronics.com/contribution > le, List Admin. > ========== > -List" target="_blank"> > http://www.matronics.com/Navigator?RotaxEngines-List > ========== > http://forums.matronics.com > ========== > > > * * > > * * > > *_blank">www.aeroelectric.com* > > *.com" target="_blank">www.buildersbooks.com* > > *="_blank">www.homebuilthelp.com* > > *_blank">http://www.matronics.com/contribution* > > *ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-L ist* > > *tp://forums.matronics.com* > > > -- > > Zulu Delta > > Kolb Mk IIIC > > 582 Gray head > > 4.00 C gearbox > > 3 blade WD > > Thanks, Homer GBYM > > > It is not bigotry to be certain we are right; but it is bigotry to be > unable to imagine how we might possibly have gone wrong. > > - G.K. Chesterton > > > * * > > * * > > ** > > ** > > ** > > ** > > ** > > ** > > ** > > ** > > *www.aeroelectric.com* > > *www.buildersbooks.com* > > *www.homebuilthelp.com* > > ** > > *http://www.matronics.com/contribution* > > ** > > ** > > ** > > ** > > ** > > ** > > ** > > *http://www.matronics.com/Navigator?RotaxEngines-List* > > ** > > ** > > *http://forums.matronics.com* > > ** > > * > =========== =========== =========== ============* > > -- Zulu Delta Kolb Mk IIIC 582 Gray head 4.00 C gearbox 3 blade WD Thanks, Homer GBYM It is not bigotry to be certain we are right; but it is bigotry to be unabl e to imagine how we might possibly have gone wrong. - G.K. Chesterton




    Other Matronics Email List Services

  • Post A New Message
  •   rotaxengines-list@matronics.com
  • UN/SUBSCRIBE
  •   http://www.matronics.com/subscription
  • List FAQ
  •   http://www.matronics.com/FAQ/RotaxEngines-List.htm
  • Web Forum Interface To Lists
  •   http://forums.matronics.com
  • Matronics List Wiki
  •   http://wiki.matronics.com
  • 7-Day List Browse
  •   http://www.matronics.com/browse/rotaxengines-list
  • Browse RotaxEngines-List Digests
  •   http://www.matronics.com/digest/rotaxengines-list
  • Browse Other Lists
  •   http://www.matronics.com/browse
  • Live Online Chat!
  •   http://www.matronics.com/chat
  • Archive Downloading
  •   http://www.matronics.com/archives
  • Photo Share
  •   http://www.matronics.com/photoshare
  • Other Email Lists
  •   http://www.matronics.com/emaillists
  • Contributions
  •   http://www.matronics.com/contribution

    These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.

    -- Please support this service by making your Contribution today! --