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