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Moving Seawater pump

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  • Moving Seawater pump

    This is a Gen VI 502 with serpentine belt. Getting to the seawater pump on the starboard side requires me to hang upside down for about an hour if all goes well. Wonder if anyone has ever tried to move the pump to the port side?
    94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
    95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
    07 SeaDoo GTX
    Raw Water Pump Maintenance
    Merc Adults Only

  • #2
    It wold be an interesting trick. Is your sea water pump also integral with the fuel pump?
    Best regards, Ted . . . . Cape Cod, MA

    Formula 330 Sun Sport, O'Day Mariner Sail #3224, Sunfish
    Past Boats: Catalina 22 Sail #10531, Formula 242 Sun Sport
    Twin Mercruiser 7.4 LX MPI (0F802036, 039), Bravo 3's (0F806198, 199), Mercury 7.5 HP (1969), Johnson 4.5 HP (1980)

    My Boating Web Pages: http://www.tpenfield.com

    Member of the Month - February 2013

    Comment


    • #3
      do you have room to snout mount a jabsco pump like the volvo's? install an idler where it was on the starboard side.

      1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

      Past Boats
      1970 Wooster Hellion - Merc 9.8
      2002 SeaRay 190BR - 5.0 - A1G2 - "Cheasheads in Paradise"
      1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

      What’s behind you doesn’t matter.Enzo Ferrari

      Comment


      • #4
        Originally posted by tpenfield View Post
        It wold be an interesting trick. Is your sea water pump also integral with the fuel pump?
        No, not since the repower, now have serpentine and cool fuel.

        Originally posted by Scott Danforth View Post
        do you have room to snout mount a jabsco pump like the volvo's? install an idler where it was on the starboard side.
        No room, have about 2 inches in front of the pulley
        94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
        95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
        07 SeaDoo GTX
        Raw Water Pump Maintenance
        Merc Adults Only

        Comment


        • #5
          Originally posted by AllDodge View Post
          This is a Gen VI 502 with serpentine belt. Getting to the seawater pump on the starboard side requires me to hang upside down for about an hour if all goes well. Wonder if anyone has ever tried to move the pump to the port side?
          That would be a pretty good trick!

          You would have to make one-off brackets, one off hoses and experiment to get the right size serp-belt!
          Assuming you don't have an integral fuel pump, it would probably be easier to do an electrically powered raw pump. (but not cheaper)

          1987 FourWinns 211 Liberator, Originally an OMC 460 King Cobra.
          Re-powered in 2006 with a 1997 Mercruiser 7.4L Bravo III

          Comment


          • #6
            That's what I'm figuring as well, but an electric pump? Have not seen one that would move that much water and if it did the load might be higher then the belt driven

            Have to get a larger oil cooler because the oil is getting way to hot, so I also may need to remove the power steering and go hydraulic just to get more room behind the motor
            94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
            95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
            07 SeaDoo GTX
            Raw Water Pump Maintenance
            Merc Adults Only

            Comment


            • #7
              I would suggest getting the Hardin Marine stainless steel housing and one of the long-life impellers
              https://www.gcsmarine.com/content/impellers/impellers
              1987 FourWinns 211 Liberator, Originally an OMC 460 King Cobra.
              Re-powered in 2006 with a 1997 Mercruiser 7.4L Bravo III

              Comment


              • #8
                Just installed the Hardin SS pump for this season. Have seen the long life and run dry impellers and the reviews show that they do work great for Alpha's, but not so much on the Bravo's, at least so far as the reviews.

                Interesting about the Hardin pump, I noticed there is a slight dimple inside the bore of the housing. This same dimple is not in the composite housing. I wish now, I would have waited on the install because I replaced the oil cooler and pump for this season. Replacing both does not give me a baseline of the old pump compared to the new. I really want to change the pump back to the old, but not so much to actually do as yet
                94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
                95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
                07 SeaDoo GTX
                Raw Water Pump Maintenance
                Merc Adults Only

                Comment


                • #9
                  Originally posted by AllDodge View Post
                  Just installed the Hardin SS pump for this season. Have seen the long life and run dry impellers and the reviews show that they do work great for Alpha's, but not so much on the Bravo's, at least so far as the reviews.
                  Yeah, after I suggested it I went and read some "reviews" on Offshoronly..... Some people had good luck and others didn't. I don't care about "run-dry" because I would never run mine dry. I would expect those impellers to last a good long time though.

                  I have never had a problem with the Merc impellers though. I have had the plastic housing crack though. That won't happen with the stainless now. (no matter how tight the bolts are!!)

                  Are you closed cooled or raw?
                  1987 FourWinns 211 Liberator, Originally an OMC 460 King Cobra.
                  Re-powered in 2006 with a 1997 Mercruiser 7.4L Bravo III

                  Comment


                  • #10
                    I'm raw water (fresh) and have never cracked a housing, but the reason to go SS was a just in case.
                    94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
                    95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
                    07 SeaDoo GTX
                    Raw Water Pump Maintenance
                    Merc Adults Only

                    Comment


                    • #11
                      Originally posted by AllDodge View Post
                      I'm raw water (fresh) and have never cracked a housing, but the reason to go SS was a just in case.
                      I was lucky! Mine cracked just before putting the boat on the trailer on the last day of the vacay at Shasta Lake!!


                      1987 FourWinns 211 Liberator, Originally an OMC 460 King Cobra.
                      Re-powered in 2006 with a 1997 Mercruiser 7.4L Bravo III

                      Comment


                      • #12
                        What about employing an apprentice that's built like a Japanese racing snake AD ? Haha.

                        Comment


                        • #13
                          Good one

                          I have already told (not actually, I mentioned) to the Admiral that if I pull the motor out of the boat again the generator comes out with it, and is not going back in. The Gen has 40 sum hours on it and I have not even started it this season. If the Gen was not installed I would have a lot more room to get at the pump.

                          What I want to do in this off season is:
                          Pull the motor and remove steering, replace with hydraulic steering. (Gen comes out also)
                          Fix the alarm horn
                          Install larger oil cooler
                          Fix port trim tab
                          Remold the helm and all gages
                          Install dual AFR meter
                          Remove Speed-o
                          New GPS plotter (maybe radar)
                          Redo all other gauges, which include before and after oil temp senders

                          Planning to put way to much money in this boat "again" but I still really like the boat
                          Last edited by AllDodge; August 25th, 2017, 07:54 AM.
                          94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
                          95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
                          07 SeaDoo GTX
                          Raw Water Pump Maintenance
                          Merc Adults Only

                          Comment


                          • #14
                            Sounds expensive AD....but hey...what else would you spend it on ??? Haha

                            Comment


                            • #15
                              Sign up today
                              I'll be following along . . . interested to see what you do/get for the gauges. I think Formula uses the VDO senders with their gauges, so I assume they are the European style/resistance range
                              Best regards, Ted . . . . Cape Cod, MA

                              Formula 330 Sun Sport, O'Day Mariner Sail #3224, Sunfish
                              Past Boats: Catalina 22 Sail #10531, Formula 242 Sun Sport
                              Twin Mercruiser 7.4 LX MPI (0F802036, 039), Bravo 3's (0F806198, 199), Mercury 7.5 HP (1969), Johnson 4.5 HP (1980)

                              My Boating Web Pages: http://www.tpenfield.com

                              Member of the Month - February 2013

                              Comment

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