On Sun, Oct 11, 2009 at 10:05 PM, neil n <musomuso@gmail.com> wrote

>
> On my '81 (also has the smaller outlet on tank), the main reason I
> omitted the square filter and "upgraded" to a "can" filter post pump
> was to see if it would quell the intermittent fuel pump noise. Since
> pump is pretty new, and tank et al is too, I am almost certain the
> noise is due to pump cavitation. FWIW, in cooler climes this "upgrade"
> seemed to help reduce the noise. But recently, while traveling in
> hotter climes, the fuel pump was pretty noisy at idle when engine up
> to temp, and restarted. And with all the wind noise and Steely Dan
> blaring away, couldn't hear if pump noisy while driving. I would
> suspect it was at least intermittently noisy. In colder weather, it
> seems quieter overall though.
>
> Just my experiences so far.
>
>
Neil,

Do you attribute the possible cavitation to the smaller tank outlet?  What
did you use to adapt the smaller tank outlet to the fuel pump?

Thanks,
John