<VV> those pesky fuel pumps!!

[Frank DuVal]

Mark,

Have you re-tightened the screws? It is common to have to re-tighten the 
screws after a run in period.  If I was installing an electric pump on a 
turbo, I would run a return line. That way there would be no need for a 
pressure regulator ( as long as a reasonable range electric pump is 
chosen). To do this you need to modify your fuel filler pipe or install 
one of those expensive "T"s and run a small metal line along the bottom 
of the car. This one does not go through the tunnel. I'm sure someone in 
the CVCC can show you a Spyder with one installed. There are two in my 
yard....

To keep from putting gas in the oil, you can take a new pump apart and 
see if the bottom housing has the dam to keep gas from flowing into the 
crankcase when the diaphragm splits. Details somewhere lost in the 
archives, but the bottom housing should not be flat internally. Tony 
Underwood has published pictures of what to look for on the side of a 
new pump to see if the diaphragm material has the proper reinforcement. 
Basically if you can see fibers along the side of the diaphragm (from 
the outside of the pump) then it is proper. If the side of the diaphragm 
just looks like rubber, then that is not good.

Frank DuVal

Markpowhatan at aol.com wrote:

>I have a early 63 Turbo that  eats a fuel pump about every 200  miles.  The 
>current eighth one is squirting gas out the side of the pump as  2 others 
>finally did too.(some just quit..one put gas in the oil)  It  hasn't mattered where 
>I buy them.  I am going to install an electric pump,  and was wondering if it 
>will work OK as I don't have a fuel return line.   Would a return line be 
>needed for an electric pump?
>
>  
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