> Tried putting a new diaphragm in the fuel pump but it did not work. Without
> the time to try and figure out why (we are down to just this one car for a
> few weeks and needed it fixed _now_) I went ahead with an electric fuel
> pump. The mechanic I was working with had one that puts out 3 psi maximum
> and he assured me that the pressure regulator would not be needed when I
> asked him to put one on. He'd used the pump on several of his racers and
> swore by its dependability. I'd still like to try and fix the mechanical
> one either as a fall-back or as a main and keep the electric as a fail safe.
> Figured I'd wait for a thread on restoring your fuel pump. . .
Be carefull with the pump putting out 3 psi. The stock pump puts out between 1 and 1.5 psi, and the sizing of the needle and seat, plus the fuel float level setting are very sensitive to increase in fuel pressure. I'd say 3 psi is too high, having nearly set a fire when my stombergs overflowed onto my exh manifold. After that happened, I went back to the mechanical pump, and all was well.
BTW, purilator sells a $15 regulator that adjusts from .5 to 4.0 psi in .5 psi incriments. Not the best regulator available, but is works well enough.
Jarrid Gross