i have had some success with lapping gas taps, start with fine valve grinding paste then tooth paste to finish. i have an old concrete mixer, welded 4 chain links to the outside of the barrel, tie the fuel tank on with a couple of rachet binders, a hand full of nuts and a cup of Diesel and let it rumble away. the beauty of the mixer is that you can change the angles so as to have the nut rub across all the surfaces
Have you tried using lapping compound on the shutoff valves? I think you can get it in various grits so you could use a vary fine grit to finish that valve.
Perhaps ez turn lubricant? A polyester paste used sparingly MAY help with weepy shut off valves. Aviation fuel valve lube. 2902LUB at langs T parts. A tube lasts a lifetime. Some say soap dish snot will do it also. I dunno.
i have had some success with lapping gas taps, start with fine valve grinding paste then tooth paste to finish. i have an old concrete mixer, welded 4 chain links to the outside of the barrel, tie the fuel tank on with a couple of rachet binders, a hand full of nuts and a cup of Diesel and let it rumble away. the beauty of the mixer is that you can change the angles so as to have the nut rub across all the surfaces
Have you tried using lapping compound on the shutoff valves? I think you can get it in various grits so you could use a vary fine grit to finish that valve.
Perhaps ez turn lubricant?
A polyester paste used sparingly MAY help with weepy shut off valves. Aviation fuel valve lube. 2902LUB at langs T parts. A tube lasts a lifetime.
Some say soap dish snot will do it also. I dunno.