Trailer Tongue Brake Actuator Replacement

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  • Scooter G
    1,000 Post Club Member
    • Jan 2022
    • 1320

    • On a Lake in Idaho

    • 2022 G23 ZZ8

    Trailer Tongue Brake Actuator Replacement

    Taking a stab that I'm in the correct category with this one, Jeff will get me there if I missed.
    Pulled my brake actuator to replace a mangled break away cable from the previous owner. After I got the acuator out, the whole thing looked pretty haggard, and the rebound shock was spent, so I decided to order a complete new actuator from Boatmate. It was $362 and some change with shipping, I think it came in the week I ordered it. There are a stock of Youtube videos on how to do an actuator replacement but I thought it might be helpful to have a little play by play illustration for someone down the road.

    Christmas in April:
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    Old Actuator:
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    Clip wires, as close to the backup solenoid as possible, this will leave you plenty of wire to work with (I didn't do that). Disconnect the brake line at the old solenoid:
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    Remove snap rings on the 2 retaining pins on one side. I busted my snap ring pliers on round 2, ran down the road to NAPA and they said do you want the $60 dollar pair or the $120 pair. Hmm, on a bad year I maybe use them one time, I'll take the $60 pair:
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    Pull pins:
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    Slide out:
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    I hit the inside of the tube to remove any dirt and residue:
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    Pretty rough:
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    You can see the mutilated break away cable, I clipped the end off before I pulled it:
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    Side by side:
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    Tool reference. I hit the tube and actuator with some white lithium. Not a fan of grease in semi open environments, seems to be more of a dirt magnet:
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    I used some long finger pinchers (needle nose) to hold the brake line while I threaded it, not a lot of working room:
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    Backup wire and ground wrapped & shrunk. The ground was attached to the old solenoid with a screw, new one was a clip and splice:
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    Locked and loaded, good thing I had a new pair of $60 snap ring pliers, lol:
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    You are on your own on bleeding the brakes, a lot of ideas on the best method. Just make sure the fluid resevoir doesn't go dry during the process. 2 person process, a third hand to keep the fluid topped of would be ideal. I will say that I bleed out all 4, and then hit with another full round of bleed out. This one was a full flush since I had it apart, I had new clean fluid coming out the bleeders:
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    Four new trailer tires sitting in the corner, to match the new spare replaced end of season last year from a blow out.
    Best price I could find on-line, super fast shipping:
    https://tiresshipped2you.com/collect...255-55r18-109v
    The buffer is on the work bench and the gel coat is out to catch up on a few nicks and gouges...

    My best to all your projects and journeys, and may it be a fantastic boating Summer for all.

    ~Scooter

    Last edited by Scooter G; 04-20-2023, 11:07 AM.
  • Badfoot
    • Sep 2022
    • 24

    • Smith Mountain Lake, Virginia

    • 2019 G23

    #2
    Thanks Scooter G, nice documentary! Sure hope I don't need it.
    BTW - like the new wheels

    Comment

    • bturner
      1,000 Post Club Member
      • Jun 2019
      • 1562

      • MI

      • 2016 200 Sport Nautique

      #3
      Nice post. For those of you who are looking at this and maybe doing so on an older or neglected trailer take a real good look at those slider pins before getting into this job. The ones in this post look like new which is wonderful. I had some that rusted in place and became one with the inner member. I tried penetrating oil, a torch and several BMFHs with no avail. Took a sawzall along with and hours upon hours to cut them out. Honestly, if replacing the tongue was an only on that trailer I would have gladly paid for it.

      Comment

      • MN Ryan
        1,000 Post Club Member
        • Aug 2020
        • 1241

        • Maple Grove, MN

        • 2007 SV-211 TE

        #4
        Nice! I had a leaky master cylinder replaced not too long ago. It looked doable, but I lacked the time and motivation to tackle it myself.

        I had to laugh at your snap ring plier debacle--I have been there with NAPA before. You want how much for a set of bearings and races?!?! FWIW, I bought a set of sanp ring pliers at Menards for < $15 a few weeks ago. Sure, yours are nicer, but I figure I've made it to 42 without a set, so how often will they actually get used?

        Comment

        • JDC02SANTE
          • Jul 2021
          • 151

          • Indiana

          • 2002 SAN 210 TE

          #5
          Hey Scooter G, nice work! I've lived in the Frame design world (RV, not Marine) for the last 25 years and always hate working with surge couplers. Necessary evil for OEM's that make units for rental fleets. Just glad we design and build around them and don't have to service them.

          Comment

          • Scooter G
            1,000 Post Club Member
            • Jan 2022
            • 1320

            • On a Lake in Idaho

            • 2022 G23 ZZ8

            #6
            Fetch, 60 bucks for pliers, I'm going to put them in a little frame on the wall. I was one snap ring away from success, and there are probably 3 other auto part places in a radius, but I was on a git 'er done mission. The chump part is the my "all most new" Amazon pair had only been used one time, sometime last year. Maybe they are still inside the return window, ha.
            Your smarter than I am MN Ryan, I haven't figured out the pay someone else to do it theory yet. I like to punish myself and come up with words I haven't heard myself say for 20 years after I stop the bleeding knuckles. It was a super easy fix, maybe 2 hours all in from tool gathering to clean up, not counting the lunch break to NAPA, lol. Did a previous boatmate trailer stem to stern rebuild including torsion axels, calipers, wiring, and acuator on my last boat, so it wasn't virgin territory, but definently a DIY project for anyone that wants to attempt. Helping a buddy replace his next weekend, I think he said the shop wanted just over a grand to do it. Maybe I can get a cheeseburger out of the deal, I mean a salad, it's almost boarding season right, need to be able to see my feet with the shorts on...

            Comment

            • shag
              1,000 Post Club Member
              • Jul 2003
              • 2217

              • Florida


              #7
              Nice write up! I thought you used to be able to buy just the pushrod and master before, for a lot less. But alas like everything, prices are ridiculous these days.. Looks like a good job! The link to the tires: Those are trailer tires or no?

              Comment

              • SANonTellico
                • Aug 2014
                • 296

                • Tellico Lake, TN

                • 2022 GS22

                #8
                Nice write up.
                People often overlook proper trailer maintenance, can’t over emphasize how important that is when trailering many thousands of pounds!
                Good job and again, nice write up.
                Previously: 2015 SAN 210

                Comment

                • Scooter G
                  1,000 Post Club Member
                  • Jan 2022
                  • 1320

                  • On a Lake in Idaho

                  • 2022 G23 ZZ8

                  #9
                  Thanks for the feedback, appreciated.
                  You can still purchase individual components to save a few bucks shag, but it's so convenient just to stab in a shiny new acuator with new pins and sliders, one and done, (that is if the pins aren't stuck, right bturner).
                  The master cylinder is shot on my buddy's Mastercraft, and the new acuator is over the $600 range, so we will probably end up just replacing the rebound shock and master for under $200.
                  The tire size and type is the same as what came on the boat (different brand), or at least that is what I was told. I know the previous owner had a head butt contest with Les Schwab over putting car tires on a trailer when he went to change them out. 109V's are a heavy load tire rated at 2271 lbs per tire, and the V signifies that they are rated at a 149 mph. I try to keep it just under that speed when towing, lol.
                  Last edited by Scooter G; 04-21-2023, 08:27 AM.

                  Comment

                  • Tom_H
                    • Jan 2014
                    • 244

                    • Minnesota


                    #10
                    Those snap rings are the hardest ones I've ever come across (have busted two different pliers on those bastards), they have almost no give. I've also dealt with rusty pins (and slightly mushroomed ends from a prior owner....), and had to drift them out the entire way using a full size sledge.

                    Comment

                    • bionaraq
                      • Sep 2022
                      • 112

                      • Fort Mill, SC

                      • 2015 Yamaha AR240 2004 Nautique 216 Sport

                      #11
                      A timely write up, i've been staring at several sites that list the new version of the Tie Down Engineering LP70 that's on my 2004 eagle trailer. I bought it with no fluid in the resevoir and drove it 900 miles home without an issue through the mountains. But for my own piece of mind, i'd prefer the trailer to help slow things down.

                      Comment

                      • Scooter G
                        1,000 Post Club Member
                        • Jan 2022
                        • 1320

                        • On a Lake in Idaho

                        • 2022 G23 ZZ8

                        #12
                        Interesting bionaraq, that unit utilizes a spring vs a rebound shock, that almost makes more sense.
                        For under $200, it might be nice to have brakes.

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