AC fuel pump diaphragms

[andrew honychurch]

That seems a strange conundrum in many ways. Lack of power under load would have suggested to me, if it definitely fuel related, that it was short of fuel but yet it was flooding. I would have thought problems therefore within the carburettor, but as you say an electric pump solved it it must have been fuel starvation. Perhaps as you were flooring it to kepp it going it was pumping what fuel it did have in the bowl through the accelerator pump and that was causing the flooding. Its a strange one, but as I said before, and from your experience, Carriers, well T16's anyway, are well known to suffer when hot. There is a guy I know who did his National Service on them, and said they were for ever stopping and couldnt be restarted. That said ( sorry to all you othe Carrier owners) when the T16 was working it was far the best of the bunch due to its power and better steering. But I digress and will no doubt be mown down for his views

[Lynn Eades]

I know nothing about the T16, but withe flathead ford v8, I believe the fuel pressure is supposed to be 2 1/2 psi. This is solely dictated by the spring in the pump. With higher pressures problems like flooding occur.
Volumne is another issue.
Even us mechanics easily confuse flooding and starvation.