Re: As a rule how often do you replace the water Pump impeller?
All good advice above. I change mine out (whether they need it or not) every other fall. If the engine sits idle all year (like my baby bass rig did last year), I change it before using it..The reason for this is, the rubber impeller forms a shape to the concentric housing, and it doesn't work right...Even if it had only 5 hours on it.<br />I do an inordinate amount of idling,and shallow water running, both of which are hard on these things.<br />And someone wiser than I on here, once made the comment," The impeller usually looks perfectly fine...Until it flies-apart". This is very true.