The 'corrosion' you speak of is called cavitation burn. I experienced it on my Yamaha 200 outboards as I had gotten a couple of small nicks on my props, which caused bubbles to form, and now my props look like they rusted, which is not possible since they are high-grade stainless.

I just pulled apart my old waterpump that I had replaced in my 99 SVT, which was built before 12/98, and it had the tan impeller. Hope my new OEM pump lasts as good as the 1st one!

Quote:
Originally posted by Elizabeth:
The earlier water pumps are the ones that failed. SO??? have any 1999 owners have one fail? "Cuz the later ones are 'sposed to be ok... so I hear.
And I wonder about a metal impeller and hydro-corrosion: (where little bubbles form from the high speed of the blade, and eat up the metal...) My paranoia gland set on "High Alert"


Andrew
99 SVT