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Date: Thu, 5 Oct 2000 11:42:44 EDT
Subject: Continental fuel return
To: lancair.list@olsusa.com
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Mike etal:

<<The Continental fuel system returns fuel/vapor from a chamber inside the 
pump 
itself, so it is never seen at the fuel flow transducer. >>

Thanks for the correct info.  I should have deduced the same from John 
Deakin's AvWeb column "Those Fire Breathing Turbos (Part 4)", where he 
discusses a TCM hot start procedure utilizing the boost pump for 1 minute 
with the mixture control in idle cutoff.  This procedure sends cool fuel thru 
the engine pump and back to the tank via the pump's "vapor vent line", thus 
cooling the heat soaked pump and reducing premature vaporization of the fuel 
during start.  That return line is, of course, in the system before the 
throttle body and divider. Duh! 

I could have checked all this out on my TCM powered Skymaster, but I sold it 
two weeks ago -- must be separation anxiety leading to mental incapacity (at 
least thats' what they tell me at the institution).

Scott Krueger
N92EX  
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