Re: 84 Spider

[bearbvd@domain.elided (Greg Hermann)]

At 12:17 AM 9/23/02, Anne O wrote:
>Fall is coming fast,so it is time to think of the Alfa work I
>have to do.
>
>I have seen 2 schools of thought on the necessity of a
>functioning in tank pump,what is the consensus? Is it truly
>necessary to maintain proper fuel pressure? Is it redundant? Is
>there a generic replacement?
>
>The only cars I remember with dual fuel pumps were 60's-70's
>Rolls which used 2 AUF 301's in series (used solo on
>Jag,MG,Sunbeam and Triumph).

Some Volvos of about the same vintage as the Alfa you are talking about
used a similar, dual pump, set-up, with the primary pump in the tank.

The purpose of the primary pump is to insure against any possibility of
vapor lock--this primary pump is NOT a high pressure pump, it is there
merely to assure proper prime of the secondary, high pressure pump. The
symptoms of a non-functional primary pump can be pretty insidious and
sneaky.

Greg
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