On Sep 15, 1:29 pm, "JimH" ask wrote:
"Chad" wrote in message

news:2oUGi.86932$Xa3.86229@attbi_s22...

How often do you change your raw water impellers for your motors?

Every 2 years, especially if your boat goes in shallow water kicking up
sand.

I ahve mercruisers, and the alpha1 is a fairly simple procedure to
inspect and change out. I look at mine every couple years. When I got
my 23' Marquis last year, I pulled the bottom leg right when I got it
home after purchase (in late fall) , and looked at the impeller while
winterizing the boat.. It was getting some wear. So I left it apart,
and this spring installed a fresh one and re assembled the lower
end.

Like I said, it's not difficult at least on a Mercruiser. I'm not
familiar with other brands though.