Hi,
Thank you all, especially those who bothered to write with specific
suggestions.
However, nothing has changed...the pump simply clicks nicely enough but
doesn't deliver a drop of fuel.
I have checked the valves' positions, sealing washers etcetc until I am blue
in the face.
I have even tried swapping the valves' postions (Their tongues being upside
or downside).
I have checked the points (99% new).
I have checked the throw over.
I have fitted new red washers (2 per outlet & 2 per inlet).
I have checked the electrical connections.
None of this makes any difference.
The pump's electrics seem very healthy and robust and the plunger plunges
seemingly as I'd expect.
Just now I tried priming the system by forcing petrol out of tank up
to/into/through the pump. (With air pressure from a small hand pump). I did
indeed get fuel into the pump and through it to the engine. But the pump
wouldn't lift a drop, so, when I took the pressure off the tank, the engine
stopped when the 3 bowls ran dry.
So, healthy clicking and no fuel..
It's tempting to say "air leak on the inlet side), but I don't think so:-
1) There wasn't a leak before and all I've done is swap pump bodies.
Why should there be a leak now? Poltergeist?
2) Fuel would have come out of the leak site when I pressurized the
tank?? It didn't.
I need someone to give me a BGO ("Blinding Glimpse of the Obvious" as we
used to say in the military). I'd guess that I've missed something small and
stupid, but I'm dammed if I can find it....
Thanks, hopefully,
Simon.
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