<VV> Electric Fuel Pump concerns

[Sethracer at aol.com]

In a message dated 4/18/2009 1:41:22 PM Pacific Daylight Time,  
hmlinc at sbcglobal.net writes:


Many  folks who have electric pump (not I) remove the mechanical, put a 
plug 
in  the hole, and reverse the plumbing to the carbs - side to side - so 
that  
it goes around the front of the engine rather that the rear.  Some  with 
electric pump only use it at cold start up and then turn it off and  drive 
on 
the mechanical one.  There are safety issues with an  electric pump if it 
does not shut off in a  crash.




Also available is a neat "Dummy" pump internal. If you are happy with your  
electric pump installation, either take note of JRs note above on the  
possible safety issue, or add the pressure interlock. And if you want to  remain 
with stock appearance, you can take the mechanical pump apart and replace  
the internal body with the "dummy" piece. All your fittings are in the same  
position, the fuel just goes into the "pump" via a stock fuel line then 
turns  around and exits via the stock outlet direction. It was a cool idea for 
those  who want to appear stock, but feel they need the help of the electric 
 pump.
 
 Remember, also, that adding the electric pump changes a  basic parameter 
of the fuel line from under the fuel tank - where most of  the electric pumps 
are (and should be) mounted - all the way to that fuel pump  inlet fitting. 
Those lines are now under fuel pressure, the fuel is no  longer being 
"sucked" from the tank to the rear of the car. That means the  hoses, both the 
hose around the electric pump, and most importantly the  connecter hose just 
over the left rear wheel, should be in PERFECT  condition and equipped with 
positive clamps. 
 
Be sure to check this. Corvairs should be cooled off with air, not Halon  
and Purple K!
 
Seth  Emerson

C's the Day! - Corvair, Camaro, Corvette



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