Thanks for the info.
Well, I've already mounted the rudder and it doesn't have a water feed. I'll just have to mount a small section of metal tubing just behind the prop then. I shall just have an overboard exit on the cooling head, straight out of the
right hand side of the boat.
BTW, you say the water doesn't have to be much of a flow, can a trickle be alright? Presumeably it's alright so long as there is a constant flow to cool the engine?