SU fuel pump not pumping fuel

[Pucketsport]

I know there have been several posts on this topic so apologies if this question has already been answered. I have an electronic SU fuel pump and after 5 years of rebuilding the car I find no fuel will pump from the tank. I can feel faint puffs of air on the outlet but when I put my finger on the inlet to the pump ( suction) there is no suction. Should I feel a suction force on the inlet ? The pump is thumping away merrily but not much else is happening.

[Declan_Burns]

Are you sure the inlet pipe is not blocked? You can always remove the pump and bench test it.
Regards
Declan

[Biggles1957]

I've had the pick up pie in the tank blocked before. Blew an air line down from the pump end and cleared it that way.

[Biggles1957]

I did of course mean PIPE. Although a good dollop of apple and blackberry would probably do the same....

[ManyMinors]

Maybe it was a piece of pie that caused the blockage in the first place

There is a filter inside the tank which can block and be very difficult to fix in some cases.

[Pucketsport]

Thanks for all the tips, it must have been a gummed up valve because it suddenly started working and is fine now. Appreciate the responses

[alanworland]

Thinking that having an inaccessible filter in the tank was never a very good idea!

Alan