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Re: Vapour lock problem. Was won't start

Subject: Re: Vapour lock problem. Was won't start
Date: Tue, 18 May 1999 17:22:55 -0400 (EDT)
>In a message dated 5/17/99 10:22:58 PM Eastern Daylight Time,
><< An easy test for vapor lock is a simple wooden
> clothes pin.  Clamp it on the visible part of the line (before the carbs) and
> off you go.  Yes, it is odd but it works.  >>
>- - - - - - - - - - - - - - - - - - - - - -
>I am always trying to learn from these lists, but you got me on this one.
>You clamp a clothes pin on the gas line and what happens?  " you go"?
>Does that mean that the engine runs with the clothes pin clamping off the gas?
>I remember vapor lock problems with my friend's '56 Corvette
>(327c.i./350h.p., but with the radiator from the stock 265c.i. engine).  We
>just let the car cool the hood, remove air cleaner, open the gas
>cap...and the problem soon went away.
>Maybe you could explain, in better detail, the physics of the clothes pin
>Allen Hefner
>'77 Midget
>'92 Mitsubishi Expo LRV Sport

OK, how about a really far out SWAG on this one; when you put the
clothespin on the line, it isn't strong enough to cut off the gas, but does
change the diameter and shape of the line, creating some sort of Bernoulli
effect, which makes the gasoline more able to either break up or move past
the "vapour" locked portion? It's almost worth getting vapor lock just to
try it out. Perhaps I should get some transparent fuel line (where? You
tell me...) and do an experiment in the interest of science.

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