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G23 Prop Fell Off .....

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  • G23 Prop Fell Off .....

    Funny story ...

    I frequent this discussion board and read about the G23 with 550HP motor prop shaft issue as it happened to another member months ago and mentioned it to my dealer when they had my boat for a month to finish up warranty work back in June. They said they had checked the bulletin and everything was good on my boat .... Apparently they were wrong ....

    Two days ago I was out on the big lake for a cruise and on our way home noticed some slight vibrations traveling at cruising speed of 45 km/hr. I thought it was odd so I stopped and hopped into the water, checked on the prop/rudder noticing no damage, seaweed or anything else of concern. We then continued and the vibrations slowly got worse and I continually was decreasing my speed to avoid damage. I got under the boat 2 more times to check on everything, I had no clue what it was but the prop nut was on tight with the cotter pin still installed and I could not see anything of concern. It got to a point where I was traveling just off idle (about 12 km/hr) because anything above the vibrations were so bad the steering wheel was shaking. Keep in mind at cruising speed we were probably 1.5 hours from home.

    Without warning at such a slow speed we heard a *tink* noise and the engine RPMs increased.... I pulled back the throttle and shut the engine off. Knowing exactly what had happened I went under the boat again to verify, and behold no propeller.... Great.

    I am not sure if anyone has towed a G23, but it is a beast. it took us 6 hours from that point to get home. I am not very happy, especially since I am very keen on the operation/maintenance of my boat and brought up this exact issue with my dealer to ensure we were not left stranded.

    We got the boat last year in august around this time and it only has 57.7 hours on it.

    I measured the prop shaft and it is 1-1/8" diameter. I have the XS550 motor, and from what I remember the issue was that the shaft needed to be thicker? I was wondering if anyone can comment/knows what the issue actually is? I am very keen on getting my boat fixed and back on the water ASAP.

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  • #2
    Holy Crap. Sorry to hear about that.... 550 or 450 motor??
    2014 G23 550
    2013 G23 450
    2011 Malibu Wakesetter 247
    2007 Yamaha AR210

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    • #3
      Sorry to hear about that. Hopefully they fix it asap for you!
      2014 SAN G23 - XR 550 (current)
      2013 SAN G23 - XS 550
      2013 SAN G23 - ZR 450
      2011 SAN 230
      2010 SAN 230
      2000 XStar
      www.mnspringride.com

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      • #4
        Sorry to hear this! Glad you got back safe and didn't get stranded in the middle of a big lake. Hopefully you can get it back on the water quickly.

        As for the shaft size, I know CC has been using 1 1/8" shafts on their v-drives since at least the mid 90's. If the service bulletin was to put a thicker shaft on then it sounds like your dealer was not being very truthful. I think there might have been some information about shaft thickness in the Yeargin interview on the main page.
        Shawn

        1999 Black and Tan Python Powered 210

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        • #5
          Originally posted by nyryan2001 View Post
          Holy Crap. Sorry to hear about that.... 550 or 450 motor??
          XS550 Engine

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          • #6
            Wow, sheared right off. This is a huge issue.
            Now
            2000 SAN

            Previously
            1999 Air Nautique
            1996 Tige Pre-2000
            1989 Lowe 24' Pontoon / Johnson 100HP outboard

            Comment


            • #7
              Wow. You are safe, that's the most important thing. Your dealer and or Correct Craft should cover all repair and towing expenses.

              Just sucks to have a boat like that and get stranded.
              Boat - 2005 Team 226 -ZR6 - Several Acme Prop's (1234, 644, 1160) Depending on occassion
              Tow Rig - 2008 Chevy Silverado - Duramax Diesel - Crew Cab

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              • #8
                I know that people say that G23s and snapped prop shafts are blowing anecdotal evidence out of proportion, but I spend way too much time on the interwebs and I can't remember reading of any other new boats doing this. I'm pretty sure there are at least 4 separate documented cases that I can think of related to the Gs in the past year. A small number, and pretty bad coincidental luck, if there isn't a problem.

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                • #9
                  ^^^ upgraded 1.25" shafts on all 2014s+. 4... lets say an even 10 failed propshafts on nearly 900 2013 Gs.
                  2014 G23 550
                  2013 G23 450
                  2011 Malibu Wakesetter 247
                  2007 Yamaha AR210

                  Comment


                  • #10
                    Here was the info I was looking for earlier (http://www.planetnautique.com/vb3/sh...hlight=shaft):

                    Quote Originally Posted by Greg Meloon

                    I was reading the discussion following the interview and believe there was some confusion on the new G Series gear ratio. The reduction gear is applied in the V-drive and not the transmission. The 2:1 ratio in the 2014 G Series is applied with the ZR409 and ZR450. The higher gear reduction ratio increases torque at the propeller shaft and requires the 1.25" propeller shaft also used with the XR550 and XS550. Additionally, the 1.25" propeller shaft for all 2014 applications uses 1.25" bore at the propeller instead of the machined 1.125" bore at the propeller on 2013 Model Year XR550 and XS550 applications. This changes the propeller specification for all 2014 Model Year G Series boats.
                    Shawn

                    1999 Black and Tan Python Powered 210

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                    • #11
                      G23 Prop Fell Off .....

                      Originally posted by nyryan2001 View Post
                      ^^^ upgraded 1.25" shafts on all 2014s+. 4... lets say an even 10 failed propshafts on nearly 900 2013 Gs.
                      10 so far. Is the 2014 spec change a concession of a bad 2013 spec? Seems like too many to think that the shafts were flawed. It's just not an inboard part you ever really hear about failing. Where does it leave the 2013 g owners in 3-4 years? How many 2013 230 owners have had their shafts snap off?

                      Sorta like the stainless props that malibu spec'd, which everybody now knows will throw blades unexpectedly.

                      The 550s aren't getting the 2:1 tranny in 2014, right? Wonder how hard it would be to retrofit the 550's shaft, strut and prop to a 2013? For the OP he already needs a shaft and prop, so the only extra expense is the larger bore strut, right?

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                      • #12
                        Im contacting my dealer about this issue. No response so far keep u posted. Really seems like an engineering flaw

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                        • #13
                          it's amazing that propeller can create enough torque to shear the shaft.

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                          • #14
                            Originally posted by shawndoggy View Post
                            10 so far. Is the 2014 spec change a concession of a bad 2013 spec? Seems like too many to think that the shafts were flawed. It's just not an inboard part you ever really hear about failing. Where does it leave the 2013 g owners in 3-4 years? How many 2013 230 owners have had their shafts snap off?

                            Sorta like the stainless props that malibu spec'd, which everybody now knows will throw blades unexpectedly.

                            The 550s aren't getting the 2:1 tranny in 2014, right? Wonder how hard it would be to retrofit the 550's shaft, strut and prop to a 2013? For the OP he already needs a shaft and prop, so the only extra expense is the larger bore strut, right?
                            I will be requesting that Correct Craft replace mine with the 1.25" shaft and new prop. I will NOT risk this occurring again. Clearly this was a design flaw and exactly as you mention where does that put a 2013 G23 in a few years? Is the prop going to fall off every 57hrs? I am not even hard on the boat, 57 hrs in 2 seasons is hardly anything compared to what i'm hearing others use their boats. I only use stock ballast, have never struck anything or overload my boat.

                            I think Greg Meloon has 100 % admitted this as a design flaw in his quote. Correct Craft has always had my attention as a quality company and I really hope they come through on this issue and make things right.

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                            • #15
                              Considering these Gs are their top product (with a ton of margin), and the customers buying them are their top customers, many of whom buy a new boat every 1-3 years, I would say that Correct Craft would have to be fools not to at least upgrade the people whose props have been sheered off. Whether or not they recall all 900 boats remains to be seen.
                              Now
                              2000 SAN

                              Previously
                              1999 Air Nautique
                              1996 Tige Pre-2000
                              1989 Lowe 24' Pontoon / Johnson 100HP outboard

                              Comment

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