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throttle cable greensky
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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Tue Jul 21, 2009 12:25 pm Post subject: throttle cable greensky

> If I remember correctly, the question was about a 503 with Bing 54 

carbs.... i.e. how do you rig them to spring open when a cable breaks? 

Someone said that Rotax makes a rig for doing just that. I'd like to see it 

and how it works.

 	  Quote: 	
		  

 --------

 Thom Riddle


	




Never heard of it.



Inspect and change out cable periodically and it shouldn't be necessary.



The two stroke carbs are much more involved, to reverse, than the 4 stroke.



john h

mkIII

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

zeprep251(at)aol.com
Guest

Posted: Tue Jul 21, 2009 12:54 pm Post subject: throttle cable greensky

Mike,

   No.

 

   

 

   

 

 --

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Arksey(at)aol.com
Guest

Posted: Tue Jul 21, 2009 5:52 pm Post subject: throttle cable greensky

when i got my firestar it had no throttle stop, I felt this  could put to much pressure on the throttle cable when going to full  throttle so i made one and installed it, makes me feel better....just a  thought on what may have caused the problem..

 do not archive

 JIM  SWAN

firestar ll, 503, N663S

Eaton Rapids, Mi.  

 A Good Credit Score is 700 or Ab22/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=JulystepsfooterNO62>See yours in just 2 easy steps!

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Dennis.Kirby(at)kirtland.
Guest

Posted: Wed Jul 22, 2009 8:33 am Post subject: throttle cable greensky

<Classification:  UNCLASSIFIED  

 

  

< … I have always been a fan of "spring loaded to wide open" in case of   

cable failure.  I once broke a throttle lever on short final into my   

confined grass strip at night (pitch black).  … john h >>  

   

   

I’ll second that opinion!  

   

I, too, had a throttle cable failure on my 912, and am REALLY glad it went to wide open so I could return to my airport (under full throttle) and make a safe landing.  I switched off the engine once I was in the pattern, and made an uneventful dead-stick landing.  

   

Incidentally, my failure was not the cable, but rather the ferrule at the end of my throttle cable slipped off.  Thanks to Richard Pike’s recommendation to fray the cable strands that stick out beyond the ferrule and solder them into a solid clump, I am not concerned that this will ever happen to me again!  

   

Dennis Kirby  

Mark-III, 912ul in  

Cedar Crest, NM  

Do not archive  

   

      

Classification:  UNCLASSIFIED   

 

  [quote][b]

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frank.goodnight(at)att.ne
Guest

Posted: Wed Jul 22, 2009 9:42 am Post subject: throttle cable greensky

Hi,



I got my carb off the plane and on my workbench today.

.It is very simple to change the carb so the butterfly will go to full open if the cable breaks.

1. flip the wheel that works the throttle shaft , reinstall.

2. fabricate a steel strap aprox 2 3/4in long, drill 4 holes , 2 are to mount it , one is so the fitting that attaches the throttle cable housing to the carb lines up with the wheel also this hole gives you a  place to mount the fitting.

     and one hole is for the return spring.

3. You are done, total time 1.5 hrs. Should be a lot safer.

 My cable failure was caused by water getting into the housing [when I washed the plane?] The failure was in the middle of the cable , in a bend that let water stand and the cable corrode.

 I thought it was made of stainless but I guess not.

 Diffrerent  subject, can anyone tell me the best way to clean the  conical K&N air filters that came on the HKS?





Frank Goodnight Firestar2

HKS

Brownsville, TX



On Jul 22, 2009, at 11:32 AM, Kirby, Dennis CTR USAF AFMC MDA/AL wrote:

 	  Quote: 	
		  <Classification: UNCLASSIFIED



< … I have always been a fan of "spring loaded to wide open" in case ofcable failure.  I once broke a throttle lever on short final into my

confined grass strip at night (pitch black).  … john h >>

 

 

I’ll second that opinion!

 

I, too, had a throttle cable failure on my 912, and am REALLY glad it went to wide open so I could return to my airport (under full throttle) and make a safe landing.  I switched off the engine once I was in the pattern, and made an uneventful dead-stick landing.

 

Incidentally, my failure was not the cable, but rather the ferrule at the end of my throttle cable slipped off.  Thanks to Richard Pike’s recommendation to fray the cable strands that stick out beyond the ferrule and solder them into a solid clump, I am not concerned that this will ever happen to me again!

 

Dennis Kirby

Mark-III, 912ul in

Cedar Crest, NM

Do not archive

 

Classification: UNCLASSIFIED



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NeilsenRM(at)comcast.net
Guest

Posted: Wed Jul 22, 2009 11:18 am Post subject: throttle cable greensky

I have been thinking about the Rotax 912 set up  with the spring pulling the throttle to full if the cable brakes. The  system bothers me....... but seems just a bit better than going to idle. Just a  thought, why not build a redundant cable/throttle system so if one cable brakes  you still have throttle control. Some people have added a second throttle for  the copilot. Some have even put in a second throttle to avoid the Kolb  throttle hand over the stomach. If you can get to both throttles aren't you much  better than going to full throttle? Just check both cables/systems before each  flight. It can't be that much more than reworking the throttle system for pull  the throttle closed. Also be careful when installing a second system that it  doesn't bind and cause the primary throttle any problems.

  

 Again worth what you paid for it.

  

 Rick Neilsen

 Redrive VW powered MKIIIC

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