Bigmantony
Member
The Boat engine holds 4000 RPM for about 20 seconds then jumps to 7000 RPM, after backing off throttle it try to garb again. I can plane but I'm using the port engine to do most of the work. I can get to 50 MPH with more throttles available. Now as far as what I've check. Gap between impeller and wear ring is less then .502mm .020 in. The wear ring looks new. I can't find any scratches and impeller has no dents, bur or damage at all. The shaft seal I'm not sure how to test. I did check the inlet, nothing blocking anything. The only thing I see is that a little bit of black seal material missing between the pump housing. (this is located at the front of the pump. white plastic piece.) If there is somewhere else I should look please let me know. Also one of the main bolts that hold the pump to the hull was loose. Thank You