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Bad boating weekend

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    Bad boating weekend

    On Saturday I had to be towed in because of overheat alarm. Took to local dealer and he was able to replace the impeller and I was back in business. I test drove that evening and everything was good. Put it on the lift for the evening and we were back surfing on Sunday. While we were changing riders, one of the people on the boat noticed the bilge pump was running. I looked back and saw the swim platform pretty far under the water and quite a bit of water in the bilge. I went to start the engine and it would not start. We opened the hatch and there was steam coming off the engine. We finally noticed that the hose on top of the impeller housing had come off. At that point I knew where the water was coming from. We put the hose back on and found that the hose clamp was so loose that we could slide into position without having to loosen it.
    We tracked down a boat and got towed in the for a second time. We left the engine cool for a couple of hours and it started with no issues. We were able to surf for about 4 hours with no issues. I called the dealer the next day and he said his tech told him that he never took the hose off for the impeller replacement. I have a hard time believing this was coincidental.
    I am wondering what kind of damage it may have caused to the engine with no water being circulated thru the engine. Does the engine shut down when it senses no water or high teimperature.
    Thanks for the help.

    #2
    His tech might have taken off the hose to track down broken pieces of impeller but he's correct, you don't remove the hoses to change the impeller. How long did you drive it before you noticed the hose was off? and was it all the way off or just barley on there? I'm pretty sure your engine would shut down due to an overheat condition. PCM 343?

    How long has it been since you changed out the impeller before? Was it shredded when they put in a new one?
    2009 RZ2, PCM 343, MLA Surf Ballast, Premium Sound.
    2013 Toyota Sequoia 4WD W/Timbren SES

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      #3
      Not sure how long the hose was off but I did notice a change in the surf wake. Not sure about how far the hose was off because someone else in the boat put it back on. This was the 2nd season for the impeller but I will replace every year from now on. The impeller was shredded pretty good. It does make sense that he could have removed the hose because the tech told me he was digging for the broken off pieces of the impeller. The engine is a PCM 343.

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