Ours let go Sunday night. Pump shaft & pulley worked its way fwd. Threw the serpentine belt off. Immediate overheat, no power steering, etc. Belt demoed some other stuff.
Fourtunately only 1000ft from our dock. Got towed in.
I'm 3/4's handy, but there was no being prepared for that mech failure. Bit of a gong show.......
should be be good to go for Friday. Not sure if there is an expected lifespan for sea water pumps.