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From: marauder@fluke.UUCP (Bill Landsborough)
Newsgroups: net.auto.tech
Subject: Vapor Lock
Message-ID: <2922@vax4.fluke.UUCP>
Date: Fri, 22-Nov-85 10:57:00 EST
Article-I.D.: vax4.2922
Posted: Fri Nov 22 10:57:00 1985
Date-Received: Sun, 24-Nov-85 04:44:13 EST
Distribution: net
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 12

Im sorry Randle but there is no such thing as "Vapor Lock" in today's
automobiles.  Vapor lock originated with the gravity feed fuel systems
of the Model T era because what would happen is the gas would get
close to boiling and bubbles would form in the fuel lines and try to
go up as the fuel is trying to go down.  The result was a stalemate or
what is known as vapor lock.

Today's fuel pumps push fuel at a pressure of 7-10 psi and no bubble
could ever have any effect on it.  

Vapor lock tends to be the "scapegoat" when the mechanic can't solve
the problem.