Water pump 2.5L Mercury

[Destroyer]

Originally Posted by RidgeRunner

Your water pump impeller is toast.

Ridge? I'm always willing to learn. Based on the pictures, could you explain to me why you think his impeller is toast? I mean, don't misunderstand me, it's always a good idea to replace the impeller every year, and since he has it apart anyway, now would be a perfect time. But what is it in the pics that makes you think it's toast? Looking at the pics I can see a little normal wear on the leading edge of the vanes, but nothing that looks out of the ordinary to me. I don't see any cuts, tears, cracking or evidence of overheating. Am I looking in the wrong place?