Hello there. Newer forum guy here. Tried searching and did not find anyone having similar symptoms. Apologoze in advance if this has been covered.
2007 C180. Boat worked good in January could reach 35+ MPH. Parked for winter, put in water last weekend. As I was pulling away from boat dock in about a foot of water at FWD Idle, hear the inlet pick up some debris form bottom. Like pebble/oyster shells. Once in deeper water got on it and engine rev'd right up but no thrust. Best speed without mismatching motor revs to speed was about 4 MPH. It felt exactly like when I swallowed my tow rope last summer. Just crawled around and tried to clear it out for a while then took boat out of water and inspected. Found a single flat Oyster shell fragment about 1 inch diameter in tunner after impeller. Nothing else in there. Took a pic and there is about an inch of super shiny metal on the shaft in front of the impeller. Wear ring also looks a little like the impeller may have slid back and is getting newly broken in. Any ideas? I'll try to attach a pick.
2007 C180. Boat worked good in January could reach 35+ MPH. Parked for winter, put in water last weekend. As I was pulling away from boat dock in about a foot of water at FWD Idle, hear the inlet pick up some debris form bottom. Like pebble/oyster shells. Once in deeper water got on it and engine rev'd right up but no thrust. Best speed without mismatching motor revs to speed was about 4 MPH. It felt exactly like when I swallowed my tow rope last summer. Just crawled around and tried to clear it out for a while then took boat out of water and inspected. Found a single flat Oyster shell fragment about 1 inch diameter in tunner after impeller. Nothing else in there. Took a pic and there is about an inch of super shiny metal on the shaft in front of the impeller. Wear ring also looks a little like the impeller may have slid back and is getting newly broken in. Any ideas? I'll try to attach a pick.