2003 330 PCM - impeller disintegrated and water in pistons.

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  • damoandjed
    • Nov 2011
    • 13

    • Australia

    • 2003 SAN 210 LE
    #1

    2003 330 PCM - impeller disintegrated and water in pistons.

    Hi all.
    Launched the boat yesterday and idled for 5 or so mins to warm engine up, up to just under 175, and just as I started to accelerate, a couple seconds of blue smoke, a different exhaust note, so I shut it down. Checked temp and it was up at 190-200. Towed back to boat ramp, and as boat was sitting in the water waiting for trailer, there was a hiss and bit of decompression in the big hoses joining the risers to the fibreglass exhaust/muffler. The rear exhaust 'flapper' was sucked back into the end of the exhaust pipe. Took it to the shed and found...

    impellor was missing half of its panes (was fitted 41 hrs/4 weeks previously).
    Water in all the pistons.
    No water in oil that I could see (not milky at all, and no droplets on dipstick). Oil was changed 2 hrs ago.

    Engine has closed cooling.
    Engine has 480hrs on it.

    Just starting to try to figure out what and how. The nearest dealer is 1800km (am in Australia). And no mechanics open for another 2 days.

    Any ideas, advice, input greatly appreciated.
    Tags: None
  • Nautiquehunter
    1,000 Post Club Member
    • Jun 2008
    • 2080

    • Flowery Branch GA Lake Lanier

    • 2008 210 SANTE 67 Correct Craft Mustang
    #2
    Sounds like it overheated and sucked water in through the exhaust during cool down. Change the impeller make sure you get all the broken impeller parts out. Pull the spark plugs and spin the engine over to blow out all the water. Check the oil again change if needed. Put it back in the water and see how it goes .

    Comment

    • shag
      1,000 Post Club Member
      • Jul 2003
      • 2217

      • Florida

      #3
      Making sure you get all the impeller parts out is important. Those things can make it all over. Thermostat housing, etc.
      But I agree, sounds like sucked water back in, maybe while towing in.

      Comment

      • Westlotorn
        • Apr 2013
        • 36

        • Folsom CA

        • 1978 Ski Nautique 1987 Malibu Skier 95 Ski Nautique purchased in 2013 with 100 original hours on it.
        #4
        Good advice above already, one more thing to check is your exhaust tube, it is made of Marine safety hose. When exposed to direct fire the inner tube will collapse, the outside of this hose does not. This is designed in as one more way to shut down an engine that no longer has water flowing in the exhaust.
        If the exhaust tubes inner wall collapses the only fix is replacement. It happens, I launched one crowded day and had my friend drive the boat off the trailer and Idle around while I parked. When I got back to the still idling boat he mentioned a strange noise .
        The impeller had failed. The engine was smoking and making crackling noises. Very Hot. I was sure the block was ruined.
        I fixed the impeller, replaced the collapsed Exhaust hose and believe it or not the engine was fine. I ran it 18 more years. So you have hope for no damage. This was an older engine with 2, 3 inch exhaust tubes.

        Comment

        • AirTool
          1,000 Post Club Member
          • Sep 2007
          • 4049

          • Katy, Texas

          #5
          Ditto good advice above.

          My comment: GET THAT WATER OUT OF THE CYLINDERS NOW.


          DO NOT WAIT.

          TOMORROW MAY BE TOO LATE.

          I'm serious. I've seen seawater engines seize up overnight.

          GET THAT WATER OUT OF THE CYLINDERS NOW. (and pour in some oil of some kind and roll the engine over. Maybe marvel mystery oil to start as it is thin...then when you are done you can squirt in some motor oil.

          You should also change at least check the crankcase oil for water. (you mentioned it but check again as the water may have drained down there) if it is not milky, I'd probably be okay running it as free water will boil out quickly. Just don't be running your engine hard at this point. Just enough to get it back to where you think it was. No need to eff it up with a fleck of rust in the rings that needs some time to be flushed out.

          After a few hours of running it, clean or change your plugs. I know plugs are expensive...if you can clean the carbon off..that's fine IMO.

          sorry so sloppy and any typos

          Comment

          • slob02
            • Sep 2003
            • 333

            • Shawnee Lake Jamestown, Ohio

            • 1993 SNOB 1997 196 2004 206 Team 2008 210 Team 2020 210
            #6
            I have seen this a couple of times............the engine over heats and when it is shut down it actually rotates in reverse.........sucking water into the cylinders. Yes.........get it out and put some marvel or 2 stroke or any oil in and crank it over a few times. (with spark plugs out!)
            2008 Super Air 210 Team
            2004 AIR 206 Team
            1997 Ski Nautique 196
            1993 Ski Nautique SNOB

            Don\'t let yourself get old and say, \"I wish I would have.........\"!

            Comment

            • damoandjed
              • Nov 2011
              • 13

              • Australia

              • 2003 SAN 210 LE
              #7
              Thanks for advice. Have removed as much water as I could and dropped a little oil in and cranked it a couple times. Have most of the closed cooling system apart and tracking down the pieces of impeller. The two big pieces of exhaust pipe from the risers are definitely bubbled and swollen on the inside.
              Will let you know how it goes.

              Comment

              • mnwakerider
                • May 2011
                • 271

                • Minneapolis, MN

                #8
                Happened to me two years ago. Do what was stated above and be ready for a rough first start. Been running great since.


                Sent from my iPad using Tapatalk HD

                Comment

                • damoandjed
                  • Nov 2011
                  • 13

                  • Australia

                  • 2003 SAN 210 LE
                  #9
                  Finally got the new impeller and have replaced that and the hoses. Flushed out all the shredded impeller, and yes, there was a little water in the oil (lake water, not coolant water, so hopefully this means it drained down from the pistons and didn't come from head/block crack) so have drained the oil, flushed some more oil through and changed filter. Ran it on the tap for 15 mins at idle, got it up to 160F or so, and seems ok. Will drain oil one more time, then try it on the water in a couple days.

                  Thanks again for the input.

                  Comment

                  • Westlotorn
                    • Apr 2013
                    • 36

                    • Folsom CA

                    • 1978 Ski Nautique 1987 Malibu Skier 95 Ski Nautique purchased in 2013 with 100 original hours on it.
                    #10
                    Glad to hear it ran and sounds good, your odds of no damage are going up quickly.

                    Comment

                    • damoandjed
                      • Nov 2011
                      • 13

                      • Australia

                      • 2003 SAN 210 LE
                      #11
                      Latest update. Seems like there is water in the oil (slighty milky oil after 15 mins running on tap). the initial amount of water in the oil was approx. a cup full. I've changed the oil and run it, and oil was slighty milky. Changed oil and filter again, run for 15mins on tap and the first cup or so out of the drain hose was slightly milky and the rest was quite clean looking. Is it possible that it's residual oil water from the first big intake, or do you think it's new water coming in.
                      Secondly, if the risers or manifold water galleries are leaking, is it likely water is coming down onto the pistons and into the oil that way? What's a good way of checking if risers or manifolds are leaking on the inside?
                      Appreciate any help before I have to start looking at getting intake manifold and heads off (again, no dealer anywhere near here).

                      Thanks

                      Comment

                      • AirTool
                        1,000 Post Club Member
                        • Sep 2007
                        • 4049

                        • Katy, Texas

                        #12
                        If you have a closed system w/coolant and a pressure cap....shouldn't you be able to pressure test that side with the regular old pressure tester and at least confirm that side isn't leaking?

                        Also, how are you draining your oil....draining out the bottom or sucking it out through the dipstick?

                        Sucking it out the dipstick is likely going to leave some water.

                        Comment

                        • damoandjed
                          • Nov 2011
                          • 13

                          • Australia

                          • 2003 SAN 210 LE
                          #13
                          You are right. I will track down a pressure tester tmrw and try that on the coolant side.

                          it was drained from the bottom through the hose.

                          Comment

                          • AirTool
                            1,000 Post Club Member
                            • Sep 2007
                            • 4049

                            • Katy, Texas

                            #14
                            Originally posted by damoandjed View Post
                            You are right. I will track down a pressure tester tmrw and try that on the coolant side....
                            IIRC, you can also hook that up when it is cold / at startup and see if the pressure builds up due to a blown head gasket.

                            Usually, the water has to get hot before the pressure goes up. If there is a head gasket leak into the water side, that gauge should show it quickly even with cold water....IIRC and I haven't slept for two days.

                            Comment

                            • Westlotorn
                              • Apr 2013
                              • 36

                              • Folsom CA

                              • 1978 Ski Nautique 1987 Malibu Skier 95 Ski Nautique purchased in 2013 with 100 original hours on it.
                              #15
                              If your engine is sealed and still good the water inside will evaporate as you run it. If it still has a leak it will continue to bleed into the oil. Engines run hot and the moisture will vent out if you have closed the leak.
                              In an overheat the most common damage is the head gasket failing, second most common is the head cracking due to the heat.
                              A good wrench could detect a gasket leak with an inspection on tear down. If you pull the heads have a machine shop pressure test them to check for cracks even if you see gasket failure.
                              The problem may still be external with water coming in from the exhaust.

                              Comment

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