Marinette Boat Forum

I figured the impeller should be replaced periodically and should be that difficult. I have done them on my previous I/O's. I was hoping to find the part number for the impeller (& gaskets I assume). I guess that I really confused things by saying "rebuild". Sorry about that.

Jeff,
You are referring to the raw water pump - if I'm describing it right? Not even the impeller?

My capac usually read about .78 - .88 if I remember right. I'm in fresh river water.
How would you know that you have "too much" anodes? What's the downside?
So Magnesium anodes on the trim tab would be okay?
thanx Jeff

Good to know.
Do you keep spare impeller?
Which one fits my 84? G7B Sherwood pump?

Thank you Joel

Thank you Bill. I won't go over board with anodes then. Seeing that my hull looks good along with the tabs, I should accept that they're doing their job. It looks like I don't need more holes drilled through the keel - which just sounds right... I'll get things cleaned up well for good contact when ...

Thank you for the info. My hull looks good and I just want to keep it that way. I've got 42" of anode on each side of the keel. The 12" ones in the 1st picture are from the tabs. I may ad more since those are a little rough. They seem to be doing their job as the tabs look good. My rudder ...

This is the Keel & anodes.... How much life do you think that they have?
Should I drill a hole in the center for another contact point?
There are 4 of these. The other 2 are in much better shape. They must be newer.

I have removed my anodes to clean up and reinstall. I would like some opinions regarding their condition. The rudder has a small corrosion spot at the top corner. I'm going the grind that spot and paint in with 2000E. My keel and trim tabs look good to me. The following are pictures of the trim tab ...

I believe that my water pump was rebuilt about 4 years ago by the previous owner. I have the check the paperwork in the boat to confirm when but I know it was done. How frequently should these be rebuilt? Thought I might add one more thing to my list for this year. Is it a Sherwood pump? Where can I...