RE: [Chrysler300] cold start

["Bob Jasinski" <rpjasin@xxxxxxxxxxx>]

Victor,
 
There is no need to leave the electric pump on, the mechanical pump will
pull through the electric pump with no problem.  If you happen to have the
mechanical pump fail, the electric pump will be your backup when you switch
it on.  As far as leaving it on all the time, the pressure will be limited
by the design spec, which is 5-7 PSI per the AMA spec, and the engine will
run fine.  The concern would be if the mech pump diaphragm fails and you
pump gas into the crankcase, which is not a good thing.  That's why I turn
mine off once it fires.  You could also-remove the mech pump and install a
block off plate too.  In that case you would just leave the electric pump on
full time.
 
Bob J

  _____  

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of VICTOR KOONTZ
Sent: Saturday, December 29, 2007 9:44 AM
To: chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] cold start



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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[Non-text portions of this message have been removed]



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