AC fuel pump advice

[Ron Pier]

Yes mine is the British version. Bought from Belcher Engineering. Ron

[Ganmain Tony]

Much appreciated Richard very helpful.

Thank you also Ron. Hope that sorts out the carrier.

[Lynn Eades]

I didn't know they were British verses American, but there are also different lengths to the rods/shafts of the diaphragms.

[gjamo]

On old Holden fuel pumps you had to push the arm up all the way to compress the spring before finally tightening th body screws. This makes sure the diaphram is fully stretched,

[Lynn Eades]

Graeme, this applies to all the A.C. mechanical pumps. It leaves enough material inside the housing to be able to work up and down. If the screws are tightened with the diaphragm in the neutral position the diaphragm will be tight like a drum skin and not able to deliver a required volume of fuel.