Re: [Chrysler300] cold start

[William Huff <whuff@xxxxxxxxxx>]

Victor,

I have used the old Holley blue pumps for years.  The instructions 
say to run them for a few minutes every month, just for the 
exercise.  I have let them sit for several months with no adverse 
effects.  There has never been an issue with pulling fuel through 
them when not in use, even with my 440 engines, although the engine 
starves while racing with open headers if the electric pump is not 
on.  But that is why I put the pump on that car anyway.  And they do 
make starting easier after the car sits for a while.

About running the pump all the time, that is extremely dangerous 
unless there is an automated way, such as an oil pressure activated 
switch that is in the circuit.  Fords use an inertia switch to kill 
the fuel pump in an accident, they should be readily available new or 
in surplus yards.  In the event of an accident, the pump would 
continue to pump as long as the ignition switch was on, even if the 
fuel line ruptured.  Not good.

Bill Huff



At 12/29/200712:44 PM, VICTOR KOONTZ wrote:

>I took your advice & put an elec. fuel pump on my 300F. With it on & 
>the engine off there's a very small flow at the carbs but after 15 
>secs. the car will start with very little cranking(which is good).My 
>question now is ,once the car is running should the elec. pump stay 
>on,& does this cause too much pressure to the mechanical pump,or if 
>the elec. pump is shut off does this pump restrict the flow of fuel 
>too much? If so what is the remedy?



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