i would replace the seals, i think they are just aluminum crush washers, you can get them at http://www.aircraftspruce.com/.. i actually just used copper crush washers when i changed my banjo to a solid bolt i only put one on top. It looks like there should maybe be one in the middle but it didnt seem like there was one to pull off so i left it that way and it doesnt seem to leak, so i just put one at the top where there was the aluminum one.