Reply To: Oliver 6 HP fuel pump help needed

[Buccaneer]

Bill, I think Chuck is correct about the check valve. I believe it was originally
in the Oliver hose. I didn’t have an Oliver tank, and I didn’t know this
about the check valve seven years ago when I fixed mine up,
I also put a new diaphragm in the original fuel pump, but couldn’t
not get it to work either.
I then tried a gravity tank, and got the motor running fine.
I thought I might have had low crankcase pressure, so back on the rack it
went for six years. Finally decided to have another look, and ended up
putting on a B&S pump (with check valves built in) and it ran great.

UPDATE, in looking further at my Notes, I didn’t get the B&S pump to
work either, until I replaced a bad o-ring in the reed block, and
changed out the Sears gas hose quick coupler that I suspected of
sucking air.

Prepare to be boarded!