Yanmar raw water pump?

[lipets]

Mine is leaking (works fine no overheating) it looks like almost $800 for a new one, mechanic says takes 6 hours to replace??? find that hard to believe

It it reasonable to take on the task of rebuilding it, and are kits available?

It's a 6LY2A-STP

 

[Mainship Pilot]

Only way I can see that being a billable 6 hour project is access. If you have to tear other parts off to get to it,then I can see how that could be the case. I'd post a pic to show the pump access.