EFII pumps
We are very sensitive to making sure our parts are working as advertised.
As Chad mentioned, early issued boost pumps had crush washers. We now use o-ringed washers and o-ringed plugs on all manifold entries. We have not had many field issues with leaks, but there have been a couple. We will always bring any older unit up to current standards if any issue is experienced in the field at no charge.
When pumps are first run, they should have some fuel poured into them to wet the internal components. This can be done easily by removing the line that goes from the boost pump to the mechanical fuel pump at the engine end and back pouring fuel into the line so that it will run back toward the boost pump. This procedure is detailed in the current boost pump instruction sheet.
Once the boost pump has pumped some fuel, it should reprime nicely. Running a tank dry, selecting the next tank and resuming normal fuel pressures should never be a problem.
Robert Paisley