I have a Mallory Rev Pol dual point distributor on my 55' Gasser that I've had since the 60's. It has two large super duty condensers on the outside of the distributor. I have a couple of extra condensers as spares but over the years they have developed a small crack or two on the outside of the brass casing. I know that these were also used on marine applications, but I'm wondering if they are still good. Was the brass casing used to keep them waterproof in a marine application? I don't need them right now but you never know if I may need them some day in the future.