Dear Bob:
I agree that a carburetor would not function normally if it were being fed
vaporized gasoline, but when the fuel pump became vapor locked, there was
no fuel being pumped to the carburetor. . In any case, today's engines are
designed to keep the heat away from the fuel until it is desired to heat it.
I will always remember the first time I heard an electric fuel pump in the
rear fuel tank, when some moisture had condensed in the tank and the
temperature dropped well below freezing. The pump was encountering ice, and it
made quite a loud noise.
I envy the fellows on the list who have the know-how to build some real
muscle cars. I learned as a teenager how engines are built, as I helped a
friend overhaul a Ford V8, and I always enjoyed automobiles in general. I live
in the mountains of East Tennessee, and our little town has become a gateway to
a large number of sports car enthusiasts as well as bikers. The curvy mountain
roads provide them with the challenges they enjoy, and they are treated to some
spectacular scenery at the same time.
Yours Truly,
s Clifford Wilson
----- Original Message -----
From: Bob Kennedy
To: [email protected]
Sent: Thursday, February 21, 2008 8:47 PM
Subject: Re: [BlindHandyMan] vapor locked engines
A filter would let the vapor pass to some extent but the carburetor couldn't
mix vapor and air. Remember the needle and seat... The float would fall down
pulling the needle from the seat until enough liquid fuel filled the float bowl
raising the float again. In among the carburetor "stuff" it had to be able to
draw fuel to mix with air in order for the engine to have the right mixture and
so on... You would think someone by now would have figured out a way to use
that heat and vapor to keep an engine running. After all you only need to light
the fumes to ignite gas. Hope no one runs out to prove or disprove that
theory...
----- Original Message -----
From: clifford
To: [email protected]
Sent: Thursday, February 21, 2008 8:07 PM
Subject: [BlindHandyMan] vapor locked engines
Dear List members:
Back in the twentieth century, when I took physics, the reason given for vapor
locking was that the fuel pump would only pump a liquid, and if the engine got
too hot, and at that time the fuel pump was attached to the engine, the liquid
fuel would become a vapor when super heated and the pump would stop working.
The answer to immediate relief was to cool the fuel pump with water or let it
rest.
I am not sure, but I would think that a filter would let a vapor pass as easily
as a liquid?
Placing an electric fuel pump in the fuel tank, has eliminated vapor lock, at
least the old fashioned type.
Yours Truly,
Clifford Wilson
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