AP Fuel pump

[peterg]

Thanks for your reply Geoff
The pump came with the car & I have no reason to doubt that it is not the correct one. It is stamped 4516xx. I did have a note of the lever but have mislaid it for the moment.
Once upon a time it worked OK!

I believe the (new) diaphragm is fitted correctly and I have put in new valves which give a good blow & weaker suck.
It is the correct diaphragm kit. Checked it against the new Standard pump. The primer works immediately and the lever lifts about half an inch before operating the diaphragm which is the same for the Standard pump.

I don't know if the pump is producing the correct pressure but petrol is sucked through when it is manually primed, it does pump when running (disconnected the outlet pipe) and I can blow petrol through the disconnected pipe from the tank.

The line has two clear full flow paper filters, one at the tank and the other below the pump because of fuel problems. Previously it worked OK with a clear filter at the front and a large VW filter at the rear.

The pump I have ordered gives 2.5 to 4.5 psi.

Regards, Peter