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OX66 analog water pressure and temp gauges

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  • OX66 analog water pressure and temp gauges

    2001 OX66 225 - I want to install analog water pressure and temperature gauges that are NOT tied into the existing digital gauges and alarm systems (I want to retain those systems intact and operating, but separately want to be able to monitor water temperature and temperature with old fashioned analog gauges.)

    (See thread: "OX66 225 low speed overheat")

    It would appear at least at first glance that there are no spare fittings in the water jacket anywhere in which to easily install sending units.

    I am looking for expert help and experience here in installing the needed sending units.

    Thanks in advance.

  • #2
    The gauge part numbers are
    6Y5-83660-10-00 Pro Series II Water pressure gauge
    688-83667-00-00 Water pressure sender
    6Y5-83590-00-00 Pro Series II Water Temp gauge
    688-83591-00-00 Water temp sender
    They go into top of block
    V4-V6 WaterPressureport.JPG
    Regards
    Boats.net
    Yamaha Outboard Parts

    Comment


    • #3
      Thank you-

      Would the two ports indicated on the sketch be the
      only ports on the top of the block (in which case our digital system is already attached to them), or are there more than two so these would be "spares"?

      Comment


      • #4
        They are the only ports on top of block in front of cylinder heads. No the Digital gauges does not use these ports only the water pressure and temp gauges.
        Regards
        Boats.net
        Yamaha Outboard Parts

        Comment


        • #5
          Not meaning be repetitive, but NEITHER of those two ports would be used by the digital gauge system, even if it included a water temperature read out??

          Thanks again-

          Comment


          • #6
            The Yamaha's digital multifunction gauges only have a temp overheat light, doesn't display temp reading. If your digital gauge is something other than Yamaha gauge then it may be possible.
            Regards
            Boats.net
            Yamaha Outboard Parts

            Comment


            • #7
              No - we only have the Yamaha digital multifunction gauge - I was thinking it displayed graduated bars or something rather than just a light.

              Thanks for your patience - my memory isn't what it once was and the boat and motor are 500 miles north of me.

              The good new is that it sounds as if I decide to buy the senders and gauges, there will be a place to hook them up on the motor when I get up there this next spring.

              Thanks again-

              Comment


              • #8
                Not trying to take over thread but would that same setup work on a 2 stroke S150 TXRX ?

                Comment


                • #9
                  Yes all the V4 and V6 2 stroke engines have the two ports.
                  Regards
                  Boats.net
                  Yamaha Outboard Parts

                  Comment


                  • #10
                    My question is what kind of threading is on the sending unit so i can buy a faria or sierra something not overpriced like yamaha.. so what is the threading.

                    Comment


                    • #11
                      Man, you are riding on an 7 year old post.

                      The threads are metric. You can remove the Yamaha plug and drill and tap it for an NPT or other fitting as you wish so that you can use some cheap stuff.

                      Comment


                      • #12
                        Hint: don't use the cheap stuff...

                        Wait for Rodbolt's comment on Faria....wait for it....

                        Comment


                        • #13
                          [QUOTE=pstephens46;144894]
                          Hint: don't use the cheap stuff...
                          Now be nice some of us have antique engines and older boats that were outfitted with Faria and had not a lot of choice!!!!
                          Dennis
                          Keep life simple, eat, sleep, fish, repeat!

                          Comment


                          • #14
                            Originally posted by boscoe99 View Post
                            The threads are metric. You can remove the Yamaha plug and drill and tap it for an NPT or other fitting as you wish so that you can use some cheap stuff.
                            wonder if Yamaha ever used brass plugs.
                            On my F225TXRD they are stainless steel -
                            drill - possible. Tap - not so easily

                            Comment


                            • #15
                              Originally posted by fairdeal View Post
                              wonder if Yamaha ever used brass plugs.
                              On my F225TXRD they are stainless steel -
                              drill - possible. Tap - not so easily
                              You are correct. I drilled and tapped an F150 oil pan drain plug so as to install a Cyberdyne temperature sender. Don't think it was stainless but it was tough drilling and tapping.

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