Next update here:
My original fuelpump was leaking fuel and oil. I replaced it with an electric Hardi pump, but I think this type of pump is maybe called different in the US (?). ... Its maybe also known as "Mitsuba fuelpump", used in many other old cars.
Technically its a diaphragm pump like the original one, but electric driven and it has an internal pressure sensor which makes the pump stop when the fuelpressure against the carburetor gets high (above ~0,35 bar). This way the pump always pumps exactly to the need of the carb - so when the float chamber is full it stops automaticly, and starts again as soon as more fuel is needed.
Another advantage is it fills the float chamber before cranking, which makes starting much easier after not moving the car for a longer time. These pumps are used on many oldtimer restorations to greatly increase reliability.
This is how this pump looks:
Preparation of the mounting location, also the integrated holder and mountplate I welded:
Ready mounted and wired:
Wiring of this pump is very easy, it just needs ground and +12V ignition. Everything I touch at this car I use new accessories, so here of cource also new hoses, new screws, new filter etc. came in too. The filter is will not stay fo very long, I used this transparent one to check if too much dirt is coming from the tank. After some driving later I will replace it with a metal one.
Also a litte optical beautification came in - I replaced these tail lights (I think they weren't original Pontiac ones...?):
...with new ones I got from a dealer in IL :
Coming up next: new crank case ventilation and pertronix ignition
