Distributor outer cap gaskets on dome distributors

[Brian]

Yes there is a gasket there...the very gasket in question. In my opinion, these early distributors are the most waterproof of the Ford distributors. The gasket you have been asking about sandwiches between the inner and outer caps and extends out to the outer perimeter of the outer cap. Then, when the cap assembly is positioned into the side of the distributor, that gasket seals against the dissy housing. So, in a nutshell, the gasket seals the inner and outer caps, also the outer cap to distributor