Farmall Cub

This is such a simple problem that I'm embarassed to ask, but what kind of gasket material do you all use to keep the fuel bowl from leaking?

I've tried using the black rubber seals that come with the bowls, red rubber (reacts with the gas) and cork composite. Every time it seems they hold for a day or two and then begin to weep gas. True, it's not poring out or even dripping regular, but holy cow it's annoying the heck out of me that I can't put in a simple gasket correctly. And it's not just my Cub all three tractors do it.

By the way the assembly order used is gasket - screen - bowl, like it shows in the manual. I've tightened them as much as I dare, I'm afraid any more I'll break or spring something. Are there any tricks, sealents, or special materials I should know about?

Thanks Guys

Slappy - sandwich the screen between 2 rubber gaskets. That will solve your problem.

I have never seen the pic.
I do it diff. screen ,gasket ,glass bowl!!
Never had problems as long as I had a good gasket.