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Is bow stop supporting weight?

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  • #16
    Pics of your entire setup, boat on the trailer... As someone else mentioned, that winch is meant for a under 16 foot boat. Your boat is just slightly larger! General rule of thumb is that the winch should be rated at around 3/4 of your boat weight, as the winch ratings go down quite a bit as the drum winds up.

    Having that winch on a trailer big enough for your boat is strange, so I'm curious if the rest of the trailer is similarly sized. In your one pic, it looked like your bunks are at least a foot or more from your transom. I'm betting your trailer is way, way too small for your boat.
    Last edited by H20Rat; July 10th, 2019, 09:43 AM.

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    • #17
      Originally posted by H20Rat View Post
      Pics of your entire setup, boat on the trailer... As someone else mentioned, that winch is meant for a under 16 foot boat. Your boat is just slightly larger! General rule of thumb is that the winch should be rated at around 3/4 of your boat weight, as the winch ratings go down quite a bit as the drum winds up.

      Having that winch on a trailer big enough for your boat is strange, so I'm curious if the rest of the trailer is similarly sized. In your one pic, it looked like your bunks are at least a foot or more from your transom. I'm betting your trailer is way, way too small for your boat.

      I agree for the winch. It needs a bigger one. jimmbo also suggested a bigger winch.
      I will start shopping for one.
      7500 lb X 0.75= 5600 lb. The biggest one I saw online is 3500 lb. Do they exist that big?
      Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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      • #18
        My dealerships says about 50% of the boat weight, so a 3500 or 4000 lb should be enough

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        • #19
          Spray the bunks down with silicone lube when it is off, that will also help reduce the load on the winch. It's recommended around 3/4's of total boat weight. Don't know if you can find a manual winch that goes up to 3/4th though, without going electric.

          If you don't need all 20 or 30 feet of strap, you can also shorten it, which increases winch pulling power quite a bit.
          Last edited by GA_Boater; July 11th, 2019, 11:17 AM.

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          • #20
            Were you the guy that had the question about moving the trailer axles last fall (Oct. 2018)? Did you ever move them, or just working the bow stop to get the desired tongue weight ?
            Best regards, Ted . . . . Cape Cod, MA

            Current Boats: 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

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            • #21
              Originally posted by tpenfield View Post
              Were you the guy that had the question about moving the trailer axles last fall (Oct. 2018)? Did you ever move them, or just working the bow stop to get the desired tongue weight ?
              Yep - https://forums.iboats.com/forum/gene...s-vs-need-help
              BOAT SPECS FORUM HELP STARCRAFT FORUM SHOP iboats
              Please, no PM's (Private Messages) regarding boat/engine problems.
              That is what the forums are for.
              Only forum/moderator issues will be answered in PM's.

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              • #22
                Originally posted by tpenfield View Post
                Were you the guy that had the question about moving the trailer axles last fall (Oct. 2018)? Did you ever move them, or just working the bow stop to get the desired tongue weight ?

                Yes it was me.
                I forgot to update my post LOL.

                I asked the fabricator to move the axles to front 4'' if I remember well'.
                This lowered my tongue weight. I'm now at 7.3% and I'm happy with that.

                The problem I have now is not related to the last fall problem
                Now, the problem is at the ramp, while loading, the boat touches the roller but the hook doesn't touch the bottom of the roller and the transom is 2'' to far at the back.

                This week end I don't go boating so I will have time to go to a ramp and try if the adjustment I made help loading.
                I will bring my tools like it has been suggested and try to make changes on the spot.

                A bigger winch is on my list. I will have to start being nice with the admiral LOL.
                Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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                • #23
                  Look at the angle of your winch strap it is lower than your top bow roller so how can it snug the boat up to the top roller, your winch barrel has to be higher than the top bow roller to get the eyelet snug cranking on it the way it is, is just cranking it down putting more wiegh/strain on the bow rollers

                  I would put your winch carrier back where it was maybe even further to forward(so the bunks cary the transom) and just raise the winch itself, but getting a biger winch might just do the trick because the barrel will be bigger

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                  • #24
                    I went to the ramp today, and did some adjustments.
                    Now it sits like it should.

                    Click image for larger version

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                    Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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                    • #25
                      But... like some of you said, my winch is not big enough.

                      While cranking the boat, at one moment it was slightly un aligned and the winch was forcing at a slight angle less than 5 degree, and look what happened!!!!
                      I'm not very impressed with my trailer builder, it's one problem after another. I spent many days on that trailer since I bought it 'brand new'. Some people should stop thinking because they can weld two pieces of metal together that they can design stuff.
                      I will try to make him pay for a new winch.

                      Click image for larger version

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                      Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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                      • #26
                        Looking at the side view of the final bow stop position, it looks like the front end of the winch is bent. Can't compare it to the original picture since the handle is in the way. The proper sized winch should address that.

                        To answer your original question, the bow stop is more intended to hold the bow down, not support it. The bunks support all the weight. I think the proper sequence of events in setting up the trailer is the following:
                        - Load the boat so the transom is fully supported by the bunks, as you've done
                        - Adjust the axle position so you get the tongue weight you want.
                        - Take the load off the bow stop by jacking up the front of the boat with a floor jack and piece of wood
                        - Move the bow stop away from the bow.
                        - Lower the front of the boat onto the bunks, then maybe raise it a quarter inch or so
                        - Adjust the position of the bow stop to where you finally have it.

                        As mentioned before, try some silicone on the bunks to help with loading. The higher rated winches have two gears so you can winch it into position in low gear if your ramp doesn't allow you to get the trailer deep enough to float it to the bow stop.
                        Rich

                        1995 Chris Craft 21 Concept (OMC 50FAPHUE)

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                        • #27
                          Originally posted by Horigan View Post
                          Looking at the side view of the final bow stop position, it looks like the front end of the winch is bent. Can't compare it to the original picture since the handle is in the way. The proper sized winch should address that.

                          To answer your original question, the bow stop is more intended to hold the bow down, not support it. The bunks support all the weight. I think the proper sequence of events in setting up the trailer is the following:
                          - Load the boat so the transom is fully supported by the bunks, as you've done
                          - Adjust the axle position so you get the tongue weight you want.
                          - Take the load off the bow stop by jacking up the front of the boat with a floor jack and piece of wood
                          - Move the bow stop away from the bow.
                          - Lower the front of the boat onto the bunks, then maybe raise it a quarter inch or so
                          - Adjust the position of the bow stop to where you finally have it.

                          As mentioned before, try some silicone on the bunks to help with loading. The higher rated winches have two gears so you can winch it into position in low gear if your ramp doesn't allow you to get the trailer deep enough to float it to the bow stop.
                          Thanks for the reply.
                          In general I did what you said.
                          Except, when I removed the winch tower, I was not brave enough to lower the jack completely in the fear that the bunks may be not long enough and the bow would be hanging and creating too much stress on the hull. But what do I know, it's my first boat and I'm learning little by little.

                          I will let it like that for now but may try later to let the boat on the bunks only, and then move the tower.


                          Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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                          • #28
                            When you had the trailer custom built, what size C-clamp did you spec for the the winch post?

                            The under-sized winch is over stressed causing it lean to one side.
                            BOAT SPECS FORUM HELP STARCRAFT FORUM SHOP iboats
                            Please, no PM's (Private Messages) regarding boat/engine problems.
                            That is what the forums are for.
                            Only forum/moderator issues will be answered in PM's.

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                            • #29
                              When you mount your new Winch, pay attention how you secure it. I think the current one was very poorly attached, from what it looks like, 2 long bolt passing thru a hollow tube? If there is 3 or 4 inches of air between the walls of the tube, then there is the potential of the tube collapsing and the winch becoming loose

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                              • #30
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                                Originally posted by GA_Boater View Post
                                When you had the trailer custom built, what size C-clamp did you spec for the the winch post?

                                The under-sized winch is over stressed causing it lean to one side.
                                LOL.
                                I said to the guy what boat I had, the weight, deadrise etc.
                                He came to the marina look at the boat and took notes, and I trusted him.

                                I always do my things myself. I never go the a garage with my cars, I seldom hire someone to work on my house.
                                I thought of building a trailer myself, but I didn't have time.

                                My uncle used to say: you are never better served than by yourself.
                                I still remember that even it was back in the 70s.

                                Oh well, they call that 'life'.
                                Chaparral Signature 260 2004 / Volvo Penta 5.7Gi / DP

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