Persistent Fuel Leak - Sediment Bowl Inlet

[Ziggster]

As I inch closer to the actual start-up of my C59A, I added fuel to my lawnmower tank which will be used for cam break-in. As fuel made its way down to the inlet of the sediment bowl, I noticed there was a slight leak (periodic drips). Tried tightening the nut to if that would work, but no difference. Remove the nut and ferrule and notice that the ferrule was just sliding on the tube. Decided to try a new nut and ferrule, and still was leaking. Remove the new nut and new ferrule, and ferrule was still sliding on the tube. I tried to judge how far the tube should protrude into the housing during these attempts. Lastly, I decided to push the tube in as far as it would go and tightened up the nut. Noticed it was better than before (no periodic drips), but the nut still was getting “wet” with fuel. Any idea what is going on? I only have two new ferrules left and don’t want to ruin any more trying to fix this leak.