I pulled the WJ out of my Spectra 18 cuz the seal was out, filling the boat with water. I had noticed some slipping and vibration on my last run, but found a big chunk of grass in the impeller so I figured that was it. Now after new seals, bearing and wear ring it STILL shakes and cavitates!!! The leak is gone (one small win) but it still feels like there is something in the impeller! I pulled the cover and can't find anything in it, really has me scratching my head. Sound familier to anyone?? I have a loader on it and I'm pretty sure it hangs down too much, but it's been on there since before (when it still worked). At wot it seems to pull out of it and spins 4900. I know it seems like there is something in there... just can't find it and I just had it all apart!