5411 Water Pump seal

Nov 28, 2008
35
Catalina 30 Northport, NY
My Catalina 30's Universal 5411's water pump is leaking for first time in thirty years. Does any one know if the Sherwood M5 raw water pump seals just SLIDE off or do I have to get involved in compression tools?
Thanks
Bruce Adams
Northport, NY
sailbruce@aol.com
Cat 30 #2656