Re: Yanmar 57hp 500 hours water pump issues
pumps are meant to weep when the shaft bearings are worn or perhaps a breached gasket
as DotDun mentioned. Sometimes, overtightening of the belt will cause premature bearing wear and subsequently, a leak. I hope this helps. Best, Rognvald
"And those who were seen dancing were thought to be insane by those who could not hear the music."
Friedrich Nietzsche, Thus Spake Zarathrustra