The Aston V8 has a twin SU fuel pump (like two normal ones joined together in the middle), but one half wasn’t clicking.
Having had no success with SU pumps in the past I reluctantly removed the plastic end covers to have a look at the points. The top contact slides out when the screw is undone a few turns and can be cleaned against a bit of fine sand paper. Removing the top contact allows access to the bottom contact for cleaning.
I put the pump back together, tested it and both sides worked! That’s a first for me and was very satifying. Yes I know I should fit a Facet solid state pump, but the evil SU pumps are working now, and I’ve been unable to find a single case of a car blowing up due to the close proximity of fuel and point arcing.
Incidentally, the SU pumps on the Aston have a condensor between the live and earth. It’s a remote condensor exactly the same as the ones fitted to distributors. And it’s fitted for the same reason – to stop the points from burning out. Anyone with an MGB fitted with the dreaded SU pump would do well to pick up an old condensor and fit it to the fuel pump.
The photo is an old one from before the pump was removed. I’m planning to replace the fuel piping partly because it’s plastic and it’s old (but not too brittle yet), but mostly because it doesn’t seem to stretch all the way to the front of the car any more. The condensors are blue in the photo.