Re: KPack's 1954 Panama

Posted by HH56 On 2021/8/25 13:55:20

Wonder if there is room for a large O ring to fit in the space between the cap edge and the cardboard support. Something maybe about 3/16" or 1/4" diameter that would seal against the portion of the fill opening just outside the rounded or raised portion and let the cardboard stay as a seal on the raised portion of the opening.

Doubt if there are any gas compatible regular O rings that would precisely fit that large diameter but maybe a length of O ring stock cut to length would do the job -- or at least prove if that is where the problem originates.

If not an O ring maybe a flat piece of thin fuel resistant sheet material cut to be slightly larger than the cardboard and fastened over the cardboard to provide a thicker, compressible and larger seal.