Anyone interested in engine mount (stringer) repair with CPES? I just finished mine.

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  • Mamigacz
    • Oct 2012
    • 118

    • Sheboygan Falls, WI

    • 1986 Ski Centurion concourse skier

    #1

    Anyone interested in engine mount (stringer) repair with CPES? I just finished mine.

    This system worked pretty good for engine mounting lag bolts that wont hold from surrounding stringer rot.
  • Quinner
    1,000 Post Club Member
    • Apr 2004
    • 2246

    • Unknown

    • Correct Crafts

    #2
    I double dog dare you to post that on CCFan, lol.

    Most will tell you that is nothing more then a band-aid or temporary fix, once the stringers rot to that point they really need to be replaced, if they are really bad and you continue running the boat you could eventually have issues like gel spider cracking, misalignment, etc.

    Post some pics!

    Comment

    • Mamigacz
      • Oct 2012
      • 118

      • Sheboygan Falls, WI

      • 1986 Ski Centurion concourse skier

      #3
      Actually, I chased the mounting holes with a 1" drill to see how bad the rot propagated from the bolt holes. Surprisingly, the wood was very solid. My previous boat had a simular issue, but like you said, it was pretty far gone after I dug into it. That one got new stringers.

      I don't have any pictures that would help to see how it was done. But I do have some nice illustrations on how to do it. This is how I repaired the horizontal surfaces:

      Click image for larger version

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      This is how I repaired the vertical surfaces:

      Click image for larger version

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      Last edited by Mamigacz; 10-30-2012, 12:19 PM.

      Comment

      • bhectus
        • Sep 2010
        • 283

        • Gainesville, FL

        • '02 Ski Nautique '87 Barefoot Nautique - sold '97 Super Sport - sold '96 SN196-sold '83 2001 sold

        #4
        You may have done more damage than good. Just sayin'. That effectively weakens what is left of the stringers around the area you drilled, leaving not much structure to support everything. Guess time will tell.
        2002 Ski Nautique 5.7 GM Apex

        Comment

        • Mamigacz
          • Oct 2012
          • 118

          • Sheboygan Falls, WI

          • 1986 Ski Centurion concourse skier

          #5
          CPES stands for Clear Penetrating Epoxy Solvent. After the 1” hole is drilled, CPES is addedto the hole. Because wood isporous, the CPES soaks into the woodfilling the voids between the wood fibers with epoxy. I’m guessing it penetrates a good ½” or morearound the 1” drilled hole. After abouttwo weeks the solvents evaporate and the epoxy cures. The treated area turns into petrified wood(even stronger than fresh wood). Afterthe hole is filled with epoxy resin, the resin sticks to the treated wood withan extremely strong bond (epoxy to epoxy).

          I spent many hours researching this product before usingit. It’s pretty impressive. It’s also very expensive. I’m not disagreeing that stringer replacementis the best route. I don’t agree thatthis is only a band aid or that it will make the stringers weaker.

          Comment

          • bhectus
            • Sep 2010
            • 283

            • Gainesville, FL

            • '02 Ski Nautique '87 Barefoot Nautique - sold '97 Super Sport - sold '96 SN196-sold '83 2001 sold

            #6
            I'm very aware of what CPES is and its uses. I wish you luck with your repair. I still agree with Quinner in that it is definitely a band-aid fix. You are more than free to disagree with us. I would encourage you to venture over to CCFan and do some more research on our older boats and their stringer issues over time. The more informed you are the better off you and your boat will be. If you had to do the repair you did, there is a reason and I guarantee if you do some more exploratory investigating you will see you have a lot more work ahead of you. There are a TON of threads on stringer jobs on ccfan. And 95%+ of the time when the floor is opened up guys who thought their stringers were "fine" were unpleasantly surprised to find the amount of water they had in the foam and the rot they had in the stringers. I truly hope yours are not so, but I would be willing to bet your foam is soaked and your stringers are rotten.
            2002 Ski Nautique 5.7 GM Apex

            Comment

            • cphase
              • Dec 2012
              • 3

              • Newnan, GA

              • 1979, 2 1985's and now a 1982.

              #7
              Originally posted by Quinner View Post
              I double dog dare you to post that on CCFan, lol.Post some pics!
              What he said.

              Comment

              • 68cc
                • Oct 2012
                • 1

                • west newbury ma

                • 1968 skylark

                #8
                where is Pete when you need him
                Originally posted by cphase View Post
                What he said.

                Comment

                • gun-driver
                  • Apr 2011
                  • 132

                  • Pittsburgh Pa

                  • 1985 Ski Nautique 2000 Sport Nautique

                  #9
                  How did you dry the wood where you were making the repairs?

                  Comment

                  • nyryan2001
                    1,000 Post Club Member
                    • Mar 2013
                    • 1993

                    • Lake Anna


                    #10
                    This is a shame here guys. This is why more folks dont share more info on forums.

                    OP shares detailed 5Ws on a process he used to solve a problem, reports good results. instead of appreciating his post up and respectfully asking questions to assess just how sturdy the repair was compared to a full stringer repair, folks are quick to discount the job as a hack and basically his credibility. Ya lets laugh at him.

                    what if this "not perfect" $50 repair holds another 3-5yrs?

                    CPES is effective because it contains a special blend of solvents that penetrate deep into wood cellulose and fibers. When applied to rotten wood, Clear Penetrating Epoxy Sealer changes the cellulose (which the bacteria and fungi find easily digestible) into epoxy impregnated cellulose that resists fungi, while reinforcing and restoring the wood.

                    reccomend you guys dont troll the forums and take shots at guys like this, you might learn something from an out of the box approach. also, this approach is cheaper and likely has the OP on the water this weekend, prime season and thru the summer, if he has to do the full stringer repair he can do that at a later date at the time of his choosing vs being forced into an immediate forced repair.

                    Just sayin.
                    2019 G23 450
                    2014 G23 550
                    2013 G23 450
                    2011 Malibu Wakesetter 247
                    2007 Yamaha AR210

                    Comment

                    • Quinner
                      1,000 Post Club Member
                      • Apr 2004
                      • 2246

                      • Unknown

                      • Correct Crafts

                      #11
                      Originally posted by nyryan2001 View Post
                      Just sayin.
                      OK there surfsally, think we can all do without your "recommendations", you don't have a clue what you are talking about.

                      The OP acknowledges a full stringer replacement is the correct repair. All the posts where sound opinion based on facts, myself and Paul - gun driver have done stringers replacements, have you??

                      If in fact the lag bolts are spinning freely the entire stringer system is most likely rotted, he did a temp repair on what, 5% at most of the supporting structure, what about the remaining 95%??

                      We gave him facts based on real world experience, plain and simple

                      Comment

                      • nyryan2001
                        1,000 Post Club Member
                        • Mar 2013
                        • 1993

                        • Lake Anna


                        #12
                        Another internet tough guy calling names, I doubt in person you would do that. not sure what Jeff's rules are here on PN but thats the 2nd time in 2 threads you have done that, clear for most folks how you conduct yourself, your maturity level and credibility.

                        I am am positive there are folks out there appreciative of him posting up.
                        2019 G23 450
                        2014 G23 550
                        2013 G23 450
                        2011 Malibu Wakesetter 247
                        2007 Yamaha AR210

                        Comment

                        • TX-Foilhead
                          Senior Member of PLANETNAUTIQUE
                          • Mar 2009
                          • 351

                          • Kingsland TX


                          #13
                          Ryan, just when we thought tornado season was winding down in OK you have to start another. You and the original poster are the only two who haven't seen what's inside that fiberglass. Since you have no experience or even a boat where you need to know this stuff it would be best for to just run along. I believe Jeff knows who the members are that can handle most posts in this section.

                          Comment

                          • nyryan2001
                            1,000 Post Club Member
                            • Mar 2013
                            • 1993

                            • Lake Anna


                            #14
                            Great. So my point stands... There is value in his contribution... What if those lags now hold 2-3yrs before he is forced into the full stringer repair? He never said it was a lifetime repair.

                            Good thing Jeff has you to hold things down in here... It's probably get out of hand and all crazy without you. Folks would probably share more if there wasn't this type of reaction from you guys.
                            2019 G23 450
                            2014 G23 550
                            2013 G23 450
                            2011 Malibu Wakesetter 247
                            2007 Yamaha AR210

                            Comment

                            • Quinner
                              1,000 Post Club Member
                              • Apr 2004
                              • 2246

                              • Unknown

                              • Correct Crafts

                              #15
                              Originally posted by nyryan2001 View Post
                              Great. So my point stands... There is value in his contribution... What if ...........
                              Exactly, "what if" is exactly where your contribution ends, you have no idea what you are talking about as you really don't know what will happen after if, lol

                              Originally posted by nyryan2001 View Post
                              Good thing Jeff has you to hold things down in here... It's probably get out of hand and all crazy without you.
                              Hello, you where the one jumping in here playing "forum cop". Apparently what is OK for you is not acceptable for any one else.


                              Perhaps you should stick with what you know, like how to pull a tube through a slalom course, creating obnoxiously large 4ft wakes, using a dangerous rope pulling surfers or how to induce noxious fumes to your riders.

                              Comment

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