Two Stk

[Rcmaster199 at aol.com]

Nat, maybe an easier way would be to take teflon tape and wrap it  around the 
body. This material is quite porous and would have the intended  effect. Let 
me know if you need some
 
Matt
 
In a message dated 3/1/2005 11:12:23 AM Eastern Standard Time,  
natpenton at centurytel.net writes:

Another possible way, which I have not tried, to insulate the carb body  is 
to use heat shrink. A strip of synthetic cloth could be placed front and  rear, 
under the shrink, to partially provide a , trapped air barrier.  What is the 
thermal conductivity of shrink?  
I tried using a thin wall sillicon hose for insulation,  unsuccessfully.      
                 Nat              

----- Original Message ----- 
From:  _Rcmaster199 at aol.com_ (mailto:Rcmaster199 at aol.com)  
To: _discussion at nsrca.org_ (mailto:discussion at nsrca.org)  
Sent: Tuesday, March 01, 2005 9:29  AM
Subject: Re: Two Stk



Warm fuel will assist the vaporization. With care tho, to   disallow vapor 
lock. And most vaporization does happen in the crankcase due  to partial vacuum 
effect and heat there. But enough happens in the venturi  to act as 
refrigerant for the carb body and that can cause freezing and ice  build up. Also, the 
sudden expansion of the inlet air  as it enters the  crankcase just past the 
venturi, can't be ignored either.
 
The dynamics are complex and depend on ambient conditions but the  concept is 
fairly simple once the fundamental is understood: evaporation is  a cooling 
process
 
MattK





 
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