Find The Mounting Holes For Second Trim Tabs

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  • dag-nabit
    Senior Member
    • Feb 2011
    • 775

    #1

    Find The Mounting Holes For Second Trim Tabs

    This is nothing new for us old dog Spartan owners, but I saw an inquiry on this just a couple days ago.

    Since i was locating and opening the holes while setting up my new hull, I thought I'd snap a couple photos to help out some of the newer Spartan owners.

    Sorry for the poor quality pics, I was in a bit of a hurry.

    Procedure:
    1. In a dim lit or darkened room shine a bright flashlight on the transom from inside the hull
    2. Locate the "donut" on the outside of the hull
    3. Use a sharp awl to puncture, or carefully drill out, the center of the "donut" through the hull to open access to the molded bolt recesses.
    NOTE: Be careful not to drill too deep

    NOTE: Lubricate threads on bolts, preferably with a non-petroleum based lubricant, before threading into hull. This will reduce/eliminate galling the plastic into the threads and will allow for easy removal.





    Kevin
    Last edited by dag-nabit; 06-21-2012, 09:56 AM. Reason: Additional info
  • patte6596@rogers.com
    Member
    • Nov 2011
    • 75

    #2
    Thanks for the info of trim tabs. I tried it. It works. Al Patte.

    Comment

    • Spartan
      Member
      • Feb 2012
      • 57

      #3
      Finally thank god!!! Thank you man.. Im gonna go to the shop today and do this mod for sure!!

      Comment

      • i2oadsweepei2
        Swab
        • Jul 2011
        • 28

        #4
        Great info! Thanks

        Comment

        • patte6596@rogers.com
          Member
          • Nov 2011
          • 75

          #5
          Yeah it really works. Good stuff.

          Comment

          • orca
            Junior Member
            • Jul 2011
            • 16

            #6
            Excellent job on showing people how to find thoes other mounting holes.

            Comment

            • dag-nabit
              Senior Member
              • Feb 2011
              • 775

              #7
              Thx

              Comment

              • CeilidhKeith
                Junior Member
                • Jan 2012
                • 26

                #8
                Thank you Kevin followed the instructions for finding trim tab holes and it worked great, i was a bit cagey about going in with a sharp pointed driver but once done it was just great.

                Regards Keith

                Comment

                • 4343
                  Senior Member
                  • Jul 2011
                  • 141

                  #9
                  will adding 2 more trim tabs help in the achoring the rear of the boat for chine walking?

                  Comment

                  • CeilidhKeith
                    Junior Member
                    • Jan 2012
                    • 26

                    #10
                    Well i done mine on friday night and sailed on saturday with it and the difference was unbelievable no more rocking about steady as it should be once you get them set right.

                    Comment

                    • 4343
                      Senior Member
                      • Jul 2011
                      • 141

                      #11
                      did you angle the inner ones down or up? what about the outer ones?

                      Comment

                      • CeilidhKeith
                        Junior Member
                        • Jan 2012
                        • 26

                        #12
                        All four in line just about level with the hull.

                        Comment

                        • 4343
                          Senior Member
                          • Jul 2011
                          • 141

                          #13
                          how do the trim tabs you added closer to the strut help? so they all shouldnt be bent up or down?

                          Comment

                          • orca
                            Junior Member
                            • Jul 2011
                            • 16

                            #14
                            The inner tabs (closest to the strut) are the ones that will be in use at high speeds when the boat is up on plane. Bend or adjust them down as needed to assist with chine walk, no more than 1 mm at a time and just test your runs with the batteries in the same position.

                            Comment

                            • 4343
                              Senior Member
                              • Jul 2011
                              • 141

                              #15
                              orca, can you tell me how each of the 4 trim tabs should be? angled up or down? 1mm? and why?

                              Comment

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