J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment IDing manual bilge pump

Our manual bilge pump failed recently...luckily while we were on the hard. I'm trying to either rebuild it or replace it with something that can use the same mounting...so I don't have to make more holes. The boat is a 1984. Can anyone help me with identifying the make or model of the pump? If not, has anyone had luck replacing it with something else? I've attached the pics for reference.