<VV> Subject: Re: Float drop question

[FrankCB at aol.com]

Stephen,
    No!  As a safety feature, most aftermarket  electric pump  installations 
send the electric feed to the pump through an  oil pressure switch so that 
when the engine STALLS and the oil pressure  drops to zero, the electric fuel 
pump automatically shuts itself off.   Some, like mine, also have a MANUAL 
pushbutton switch that can be activated from  the driver's seat to bypass the oil 
pressure switch and run the pump (with the  ignition on) to fill the carb BEFORE 
the engine starts.  This is convenient  if the car isn't run regularly and 
the carb is a LONG way from the cylinder  heads (like on 150/180 engines).  In 
addition, some installations  (like mine) have an IMPACT switch installed in 
the pump circuit that will cut  off the pump if the car is involved in a "high 
impact event" (aka CRASH)  and the engine stays running.  These are used on 
many (most?) Ford  products.  I've had to show a few friends of mine with Fords 
just  where these switches are located and explain how to reset them in case 
they  are disabled in a minor crash.  Am I the only one who reads the  owner's 
manual when they buy a car?
    Frank "rhetorically" Burkhard  
 
 
In a message dated 7/24/2008 9:52:46 A.M. Eastern Daylight Time,  
contactsmu at sbcglobal.net writes:

OK, I'm  new at this, but doesn't a car installed with an electric  
pump  always have gas in the carb when the ignition is turned on?    If  
that is the case, there can be no contact of the float to the  bottom  
of the carb at anytime that there is vibration of the car  that would  
cause the float to rub against the bottom of the  bowl.  During  
operation (driving) the bowl always has some gas  in the bowl, right?

Stephen "the carb education in theory and practice  continues" Upham





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