Hi, have been reading posts and think I should replace my impeller as the tell tale seems weak, but thought I would flush through tell tale feed pipe (from cylinder) this was clear, and also feed water in through connection on cylinder - Some water came out of water inlets and exhaust relief, but most came from center of prop! Is this OK ? Or do I have dodgy seals? Don't have a manual, but I will get one soon 'onest.<br />Would love some advice. Thanks <br />Motor is 15hp two stroke Mariner 15 E. serial 684CS 250842<br />1980 I think<br />Made in Japan.