WHAT TO CHECK or dealer......?

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  • Deuce
    • Apr 2004
    • 254

    • Murray, Utah

    #1

    WHAT TO CHECK or dealer......?

    Replacement of my impeller last night. No suction. Everything is good back through the strainer(put a hose there and it pulls through without issue).

    So I am having issues somewhere between the intake and before the strainer.......I assume????

    Or would the pressure from the hose be the same as what the impeller would be doing????

    If a warranty item, I would just take it to the dealer and let them figure it out. But a "maintenance" item, I would prefer to work out myself(well, myself with help from a boat savvy friend).

    Side note, not even 100% sure who the shop locally is now. Nautique dealership just changed.....which is unfortunate, because I have a good relationship with the previous shop(bought 2 boats from them)....
    Tags: None
  • MHayes
    Senior Member of PLANETNAUTIQUE
    • Aug 2004
    • 830

    • Roswell, GA

    #2
    RE: WHAT TO CHECK or dealer......?

    Well, the hose between the intake and strainer is short, so I'd start by just taking the whole thing off and seeing if there's an obstruction.

    In terms of the pressure from the hose matching the impeller suction, that is definitely not the case. If you want to make sure that the impeller/pump is working properly, take the hose off of the intake side and put it in a bucket of water (leave the hose in the bucket to fill while the pump is pulling it out) and start the boat up.
    2001 Air Nautique

    Comment

    • Deuce
      • Apr 2004
      • 254

      • Murray, Utah

      #3
      That was sort of where I was heading next. Just the shut off valve in-between strainer & intake if I remember correctly.

      The bucket and hose is a good idea.

      Comment

      • h20skier
        • Sep 2006
        • 24

        • Charlotte, NC

        #4
        What year is your boat and was the pump working before you changed the impeller?

        Comment

        • Deuce
          • Apr 2004
          • 254

          • Murray, Utah

          #5
          '03 SAN.

          Have no idea if the pump was working prior to changing the impeller? How do I know that?

          Boat ran for 8 hours like a top(some time before that at my home lake) towing extended family at a reunion. Pulled the boat, put it back in the next day for another round of pulling and it started to get hot before we even left the marina.

          No dry running before anyone asks......

          Comment

          • darrel409
            Senior Member of PLANETNAUTIQUE
            • Jul 2004
            • 566

            • San Dimas, So. Cal

            #6
            Check to make sure all hose clamps are tight. Check o-ring on strainer bowl. What was condition of old impeller? missing vanes could be clogging system. Have you tried pulling from a bucket like MHayes suggested, that will help diagnose.

            Comment

            • Madhat78
              • Dec 2005
              • 105

              • NorthEast

              #7
              Seacock Valve open?

              Comment

              • Deuce
                • Apr 2004
                • 254

                • Murray, Utah

                #8
                Have not done the bucket thing yet, just did the rest of the stuff last night until dark.

                Assuming that it cannot be impeller pieces, being that water flows out of the exhaust like a waterfall when water sucking from the hose, prior to the strainer.

                Have checked for lose hoses, and the strainer seal is tight and is not letter in air as the sucking through with the hose appears to show....

                Again, I don't know....I am a bit perplexed, then again, it does not take me long to get there..... :|

                Here is a post(copy and past) from my friend who is helping me dig into this, he is much more mechanically inclined than I.

                The water comes from the intake through a shutoff valve up a 1 inch hose approx 1 foot to a T with 1 barbs on each end and a 1 inch thread. Then continues another 1 foot to the strainer. Now from the strainer it pulls water in when the hose is held up to it. From the strainer it goes to a splitter type cylender and then to the impeller. It would be impossible for an impeller fin to be in the strainer. Now I know what is being thought, the T valve has a loose connection or one of the hose clamps on the valve or the connection to the intake is loose? Checked every thing and could not find any loose conections. We back flushed the system and did get quite a few impeller parts out of it. The water was flowing freely through the system after the impeller. Its weird it will not suck from the fake a lake?

                Comment

                • Deuce
                  • Apr 2004
                  • 254

                  • Murray, Utah

                  #9
                  Originally posted by Madhat78
                  Seacock Valve open?
                  Shows open, and water came back out the intake when I was under the boat hooking up the fake a lake, and Mike was tinkering with the strainer......

                  Comment

                  • MHayes
                    Senior Member of PLANETNAUTIQUE
                    • Aug 2004
                    • 830

                    • Roswell, GA

                    #10
                    Originally posted by Deuce
                    Originally posted by Madhat78
                    Seacock Valve open?
                    Shows open, and water came back out the intake when I was under the boat hooking up the fake a lake, and Mike was tinkering with the strainer......
                    This comment made me think, are you looking at the correct intake on the bottom of the boat? Our 2001 Air does not have a seacock valve on the intake into the engine. The only seacock valve that is in our boat is for the ballast system.
                    2001 Air Nautique

                    Comment

                    • skiinxs
                      Senior Member of PLANETNAUTIQUE
                      • Jul 2003
                      • 374

                      • St. Louis

                      • 2019 Ski Nautique 6.2 arriving soon
                      #11
                      Make sure you didn't put the pump on upside down when you changed the impeller. If you did, you have your incoming water supply hooked to the output side and vice-versa.
                      Dave
                      2019 Ski Nautique 6.2 arriving soon
                      16 other Ski Nautiques
                      3 MasterCrafts
                      18 Ski Supreme's
                      1 SlickCraft Squirt Boat

                      Comment

                      • Deuce
                        • Apr 2004
                        • 254

                        • Murray, Utah

                        #12
                        Originally posted by skiinxs
                        Make sure you didn't put the pump on upside down when you changed the impeller. If you did, you have your incoming water supply hooked to the output side and vice-versa.
                        Dave
                        Would water still pump out the exhaust like it is when we hook into the strainer like it does if this was the case :?: Seems to work 100% when going back as far as just prior to the strainer while using the hose........

                        Originally posted by MHayes
                        Originally posted by Deuce
                        Originally posted by Madhat78
                        Seacock Valve open?
                        Shows open, and water came back out the intake when I was under the boat hooking up the fake a lake, and Mike was tinkering with the strainer......
                        This comment made me think, are you looking at the correct intake on the bottom of the boat? Our 2001 Air does not have a seacock valve on the intake into the engine. The only seacock valve that is in our boat is for the ballast system.
                        Yes, correct intake....100% sure on that.

                        Comment

                        • MHayes
                          Senior Member of PLANETNAUTIQUE
                          • Aug 2004
                          • 830

                          • Roswell, GA

                          #13
                          Originally posted by Deuce
                          Would water still pump out the exhaust like it is when we hook into the strainer like it does if this was the case :?: Seems to work 100% when going back as far as just prior to the strainer while using the hose........
                          If the pump was put on backwards, which I have done before by accident, water would never make it into the engine and thus would not be going out through the exhaust when started.
                          2001 Air Nautique

                          Comment

                          • tski97
                            • Feb 2006
                            • 117


                            • 97 Sport
                            #14
                            On mnine, 97 sport, I can not get the fake a lake to pull enough water to keep the boat cool. I have found it is hard to get the fake a lake over the intake enough to make it work. Try the bucket method and this should tell you if the pump is working and it should be fine inthe lake.

                            Comment

                            • darrel409
                              Senior Member of PLANETNAUTIQUE
                              • Jul 2004
                              • 566

                              • San Dimas, So. Cal

                              #15
                              they are easy to put on backward...the bucket test will tell you if its pulling as opposed to pushing. Maybe the fake a lake isnt making a good seal.

                              Comment

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