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From: "Gary Casey" <glcasey@adelphia.net>
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Subject: Re:  Hot starts
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<<Well, the fuel pump heat soaks when you shut down.  It gets very hot.
Until
shut down it stays cool form the temperature of the fuel running through
it.>>

I agree, but my point was that the successful hot start technique is to
leave the mixture off.  No fuel is added to the engine regardless of whether
or not the pump is working.  Most engines will always start with this
technique, which indicates that the mixture is too rich at the beginning and
then when it leans enough with cranking the engine starts.  When the mixture
is then pushed in the engine will keep running - most of the time, as it is
then that the engine might be lean because of low fuel pressure.  However,
it only takes 2 psi of fuel pressure to make the engine idle, as long as
that fuel is in liquid form.

Someone else suggested that it doesn't much matter what throttle position is
used for starting as air flow is pretty much independent of throttle
position.  Very true, and I use the same 1/4 inch cracked throttle position
hot or cold.  With a hot engine it helps to have a good surge of rpm after
it fires so that there is enough momentum to keep running while the mixture
is pushed forward.

<<For a picture of the Airflow Performance purge valve look at my web page.
               http://home.comcast.net/~rbelshe/
Bob Belshe
B19BJ>>

Do I see the valve being supported from the distributor solely by the
aluminum nipple?  Yikes.  I'd worry about vibration causing a fatigue
failure of the aluminum.  How about using a steel fitting at that location?

Gary Casey