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Date: Wed, 15 Oct 2008 01:38:50 -0400
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From: gerardoconnell@optusnet.com.au
Subject: Re: [LML] CARB HEAT CABLE is POSSESSED in a Lancair 320 MKII.


Matt-had this problem and fixed it with duct tape, but decided this wasn't an ideal solution :) 

duct tape off
carb heat pull-on

carb heat push closed
duct tape on

makes for a messy check list

I replaced the knob with a push to lock knob similar to mixture control-they cost around AUD$250 

I have the same problem with RAM air but live with it

Gerard


> Matt Reeves <mattreeves@yahoo.com> wrote:
> 
> Fellow Lancairians,
>    
>   I have a strange problem and maybe some of you have had too.  This is 
> for all the carb heat boys/girls.  
>    
>   I have the standard Lancair 320 air box.  At high airspeeds such as 
> 200 mph or more, my carb heat will come out about 1/2 inch and the 
> engine of course runs a little rougher.  I push it in, it comes back out 
> all by itself.   So my fingers get tired holding it in.  (No jokes 
> please).
>    
>   So, I think there is tons of air in the lower forward cowl that is 
> counter-acting against my plate in the airbox that is trying to push it 
> up and allow heat in.   I would think the straight shot intake would 
> provide plenty of pressure to keep it down.
>    
>   I am wondering if anyone else had this problem OR if someone could 
> send me a picture on how their cable is set up for the carb heat.   I do 
> not have a push-rod type cable that I use on the throttle.  Maybe that 
> is a possible solution.
>    
>   By the way, the fall colors in Upstate New York right now are amazing. 
>  What a beautiful day of flying.
>    
>   Thanks!!!!
>    
>   Matt
> 
>