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Throttle cables

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JonSmith

Joined: 21 May 2010
Posts: 110

Posted: Thu Sep 16, 2010 11:14 pm Post subject: Throttle cables

Hi all, just a quick question.  Should the stranded wire throttle cables be lubricated in any way or left dry?  I'm in the process of fitting a Rotax (changing to a Rotax from an alternative engine type) and am about to bolt the throttle box and cables into the plane.  Having fitted the cables into the throttle box they seem slightly stiff to move, but admittedly they are not yet connected to the carb throttle spring which should help them to open better.

I'm sure this has been covered a thousand times before but it's new to me so many thanks in advance...!

Jon

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_________________
G-TERN
Classic Mono

europa(at)pstewart.f2s.co
Guest

Posted: Fri Sep 17, 2010 12:52 am Post subject: Throttle cables

Jon



The cables are notoriously sticky and can give rise to difficulty with carb

balancing. Some have replaced with piano wire. On advice from Conrad Beal

(ConAir) we lubricated with ACF 50 and the cables run reasonably smoothly.

Don't rely on the carb springs to overcome much stickiness, they're not very

powerful. 



Other useful advice from Conrad was make the throttle cable runs as smooth

an arc as possible, mirrored L & R and well secured so that the outer does

not move when actuating the throttle.

Regards



Paul

G-GIDY   (awaiting permit to test!!)

On 17/9/10 08:14, "JonSmith" <jonsmitheuropa(at)tiscali.co.uk> wrote:



 	  Quote: 	
		   

 

 Hi all, just a quick question.  Should the stranded wire throttle cables be

 lubricated in any way or left dry?  I'm in the process of fitting a Rotax

 (changing to a Rotax from an alternative engine type) and am about to bolt the

 throttle box and cables into the plane.  Having fitted the cables into the

 throttle box they seem slightly stiff to move, but admittedly they are not yet

 connected to the carb throttle spring which should help them to open better.

 I'm sure this has been covered a thousand times before but it's new to me so

 many thanks in advance...!

 Jon

 

 --------

 G-TERN

 Classic Mono

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=312720#312720

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gsessare(at)hotmail.com
Guest

Posted: Fri Sep 17, 2010 4:47 am Post subject: Throttle cables

Hi Everybody, 



I have almost ready to fly test a Europa monowheel with Jabiru 3300 and Aerocarb. the trottle systems is liske CESSNA but it did nto work well, to short from close to full open and not acuracy. any suggestion for other kind of system ? (may be throttle system by aerocarb)



regards from Argentina,

GUSTAVO



[quote] Date: Fri, 17 Sep 2010 09:45:36 +0100

 Subject: Re: Throttle cables

 From: europa(at)pstewart.f2s.com

 To: europa-list(at)matronics.com

 

 

 

 Jon

 

 The cables are notoriously sticky and can give rise to difficulty with carb

 balancing. Some have replaced with piano wire. On advice from Conrad Beal

 (ConAir) we lubricated with ACF 50 and the cables run reasonably smoothly

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jimpuglise(at)comcast.net
Guest

Posted: Fri Sep 17, 2010 8:56 am Post subject: Throttle cables

Gustavo- 

  

I also have a 3300 and build to throttle enclosure as specified in the Rotax documentation, then made a lever out of 1/8 aluminum, then used a Bowden cable.  Your other alternative is that Vans has a setup that may be idea.  I am not at home now and won't be for a month or so, but can send photos if you need them. 

Jim Puglise 

---

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JonSmith

Joined: 21 May 2010
Posts: 110

Posted: Sat Sep 18, 2010 1:51 am Post subject: Re: Throttle cables

Thanks for the advice, much appreciated. Jon

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_________________
G-TERN
Classic Mono

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