--- In oldcorollas@yahoogroups.com, "rob83ke70" <rob83ke70@...> wrote:
>
> anyone ever rebuilt a fuel pump with a different spring so as to
> reduce the fuel pressure to a certain amount?
> any thoughts?
> robert.

a simple cheap electric pump with a fixed output pressure is the
easiest option.

not sure if you could change spring in stocker to change fuel pressure.
i can't remember the workings exactly.. but.. it has the cam driven
lever under the diaphragm, and then a spring above to push it back.
changing that spring won't change fuel pressure as the stroke of the
diaphragm will still be the same...
if some of them (later k motors?) has an inbuilt pressure relief valve,
then you could alter that..