I have a 1987 model Fynspray brass pump that needs new gaskets. I purchased the repair kit made by Fynspray to do the job. The problem is that I can only diassemble the pump so far and I'm not sure if the areas that look like threaded joints are, and are corroded closed or are not joints and there is some other way to get to the guts. Any help or info as to where I can get an exploded view of the pump would be great. Thanks.