Mech. fuel pump failure modes?

I decided to go for an electric feed-pump, or rather, two feed-pomps in parallel to ensure that I got a feed rate that was higher than that of the High-pressure pump.

The Local auto-warehouse had some units that wasn't too expensive.

After installation and some priming to get the iar out of the system, the pressure gauge went bang to the set pressure instantly, and the car started fine.

Took it for a test drive (only a relatively short one, incase of trouble), and everything was OK! :)

The bad thing is that these pumps are very noisy, making a pronounced ticking sound. In all likelyhood, they will be replaced sometime in the future with a rotor or turbine pump that is quieter.

But at least I now have the car on the road.

Allthough this modification has positively elliminated any possible issues with using the mechanical pump for feeding, I did discover something that may well have been the root cause of the problems, The short rubber hose between the tank pickup and the fuel line.

It was very badly deteriorated at one end, to the point where I think it more than likely that it allowed air to be drawn in.

OK, perhaps I should have checked that out first, but at least I now have a feed pump set up which work and should allso work for a hoped for future HEMI III conversion.

And finally, thanks a lot for all innput and comments! :)