Head Zincs

[SkunkBoat]

Now that you know what you have, you can just check a different one every year... if you find you need to clean it, check the others. Have a rubber grommet or 2 and spre anode onhand..

 

[Sharkbait282]

Remember, that if you haven't checked or know, you should have another 4 slender anodes in the updated thermostat housings (might be 2006 year feature . . . ), which is significantly more difficult, but worth it if you're in salt water with a limited ability to flush when the engine is fully up to temperature.

If you're worried about perforated power heads, this is worth the work (or paying someone).

 

[ScottyCee]

Thanks. Thermostats are on my off-season maintenance list, so I'll see if that's applicable then.