Originally Posted by Scousedeli
Not checked all those ideas out yet, will do tomorrow. What's the best way to back flush the system?
you really need the leg off lee, but an air line or hose from each side my tell tail has an insert if you take that out if it has one you find the hole much bigger to get the hose up you might find debris behind that, if you dont know the history of the engine it might have had a impeller disintegrate at some point leaving bits in the water channels or might just be salt dislodging blocking the tell tail, salt away is good for that run engine in a tub with it added after you give it a good clean out.
you tube has some good videos on for different engines fitting water pumps one is D-rays shop outboard motors.