This is an imp just pulled out of a lady friends 21 cruiser, complained that boat made a lot of noise but did not go anywhere ,(kinda like RCL) had pump "supposedly" rebuilt last summer about three trips to lake. Has a 9.5 installed ( got me on that one? ) not sure what brand, aluminum A. Cant imagined what happened here, Ideas?? never seen one this bad, imp still looks new. Maybe let run too long on trailer?