I have a problem with my Mercury 9.8 and need some help. Last weekend I started the engine and no water was coming out of the tell-tale. I checked the impeller and it was in bad shapped, so I removed it, removed the pieces and replaced it with a new one. I flush the system before assembling again to make sure water was runing ok. I started the motor again but same problem, no water is coming out. Any ideas? kind of desperate....thanks!