If the following looks familiar; I posted it on the wrong forum before I found this one:Salvaged a PHII head from a 1964 Trojan; promptly dropped same. Broke the pump housing.Then found a box in the chandelry of new parts which included all major plastic.Wow! now I have enough to put it all together.Thanks to Peggie Hall's book "Get Rid of Boat Odors" I was able to order the remaining springs and a kit w/ joker valve etc. also bought Raritan PN1214W shaft seal cartridge assy. Here comes the problem:There are no threads in the top of the housing. My first instinct was that someone had broken off a seal assy just above the threads. If that is the case; the break was very clean. Is this made that way? Is there another type of cover? Now I have the cup washer seated in the hole. The pump works fine on the bench. Will it work over time? ]See attached picture. I have some sweet looking bronze parts on a new pump. Anyone have a number at Raritan for the "historian"?