Fuel pump noise/missing and cutting out

[Jeff16v]

A few months ago I changedy previously repaired fuel supply line from the front of tank right upto the bulkhead rubber lines with 8mm copper. I also replaced the rubber flexi to the pressure regulator before the pump.

Now the pump
Sounds like is pumping petrol and air down the lines causing fuel
Pressure issues, if I put a battery live on the pump for a few mins then bleed it out of the rail and start it, it's fine for a while.

Q1-Is there a bleed procedure that I should have followed after stripping the rail?
Q2- my regulator under the back with the pump is rusted to buggery, could that be letting air in, can I ditch it?

I have changed fuel pump relay already

Cheers for Any help.

[autoworksnovasport]

you havent got a good seal somwere in the system go round and check all the joints ect

[Riggy]

Yeah the diaphragm damper is just crap really , it's supposed to make the flow of petrol a bit better but I've not had mine for years and never had a prob , aslong as fuel is in the rail the ecu and reg do the job from there lol

[Benn]

Any air leek would drip fuel...
There's no bleeding prosess.
Is the pump working ok? Try a known good pump...