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  1. #1

    2018 Sea Doo RXT-X 300 - Crack in Hull/Bilge

    75 hours on ski - second season now, just notices a 3" crack about 6" to starboard of the forward engine mount. It's on the cross frame and far from mount as don't see issue or caused by mount. Does anyone know what he bilge lining is made of? The hulls are gel/fiberglass but seems the bilges are coated with this resin/plastic. Curious if anyone has this same problem - it's not a spider crack, I ride hard but no abuse no hard docking etc - this should not have happened. Will circle back after see dealer on Friday to document issue to BRP.

    I am based out of Brick NJ - New Member here but been using this forum for years for all kinds of advice ETC.
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    Last edited by 2018 Sea Doo RXT-X 300; 07-31-2019 at 11:33 AM. Reason: added photos


  2. #2

    Join Date
    Jan 2019
    Location
    northern ,nj
    Posts
    13
    +1
    1
    pls keep us updated.

  3. #3

    Join Date
    Dec 2013
    Location
    Greece
    Posts
    180
    +1
    20
    How is it on the outside? Do u have water entering through that?

  4. #4

    Join Date
    May 2010
    Location
    Jax,FL
    Posts
    4,602
    +1
    939
    A little spackle in that crack and it will be good as new.

  5. #5
    You have a CM-Tec hull so your hull has three layers, fiberglass, PVC, and acrylic. This appears to be a crack in the fiberglass portion, at least I assume so since you haven't mentioned a visible crack on the exterior acrylic finish.

    I also assume DinoMite was joking above when he said "A little spackle in that crack and it will be good as new." He likes to joke around so please don't try that.

    This may be fixable, although it'll never be as strong as if it never occurred, and it needs to be fixed right away before the crack causes damage to the exterior finish. Once the exterior finish is affected, it will be very hard to fix properly because there is no way to repair the finish other than painting, which is inadequate.

    Bring it to the dealer asap and file a warranty claim. BRP will probably offer to have it fixed at a fiberglass body shop. If this wasn't caused by a collision, then it's a hull defect and BRP is responsible for it as long as the ski is under warranty. The body shop will grind down the crack and fill it in with a structural fiberglass patch. Hopefully, this will restore adequate structural integrity, although you'll always need to keep a close watch on it. Since the finish is not affected, there should be no worries there.

    You might be tempted to fill it in with something like JB Weld or fiberglass resin. While this may seem like a good idea, it would be a cosmetic repair only. You have to understand that the forces on the hull will be flexing the damaged area in all directions. If you simply fill in the crack, there won't be adequate surface area for a filler to properly adhere. The area needs to be enlarged to ensure proper filler adhesion over a larger surface area. The strong molecular bond in that area is gone forever, it'll now have to rely on a much weaker friction bond which requires a larger surface area to properly adhere. A proper repair done by a body shop that knows all of this will be your best hope.

    Good luck, and let us know what happends.

  6. #6

    Join Date
    May 2010
    Location
    Jax,FL
    Posts
    4,602
    +1
    939

  7. #7

    Join Date
    May 2010
    Location
    Jax,FL
    Posts
    4,602
    +1
    939
    That hull is forever compromised IMO, I would never ride it again. Either claim it as a loss against your insurance or trade that thing in for a new one or better yet a PX.

  8. +1 by:


  9. #8
    Quote Originally Posted by pro10is View Post
    You have a CM-Tec hull so your hull has three layers, fiberglass, PVC, and acrylic. This appears to be a crack in the fiberglass portion, at least I assume so since you haven't mentioned a visible crack on the exterior acrylic finish.

    I also assume DinoMite was joking above when he said "A little spackle in that crack and it will be good as new." He likes to joke around so please don't try that.

    This may be fixable, although it'll never be as strong as if it never occurred, and it needs to be fixed right away before the crack causes damage to the exterior finish. Once the exterior finish is affected, it will be very hard to fix properly because there is no way to repair the finish other than painting, which is inadequate.

    Bring it to the dealer asap and file a warranty claim. BRP will probably offer to have it fixed at a fiberglass body shop. If this wasn't caused by a collision, then it's a hull defect and BRP is responsible for it as long as the ski is under warranty. The body shop will grind down the crack and fill it in with a structural fiberglass patch. Hopefully, this will restore adequate structural integrity, although you'll always need to keep a close watch on it. Since the finish is not affected, there should be no worries there.

    You might be tempted to fill it in with something like JB Weld or fiberglass resin. While this may seem like a good idea, it would be a cosmetic repair only. You have to understand that the forces on the hull will be flexing the damaged area in all directions. If you simply fill in the crack, there won't be adequate surface area for a filler to properly adhere. The area needs to be enlarged to ensure proper filler adhesion over a larger surface area. The strong molecular bond in that area is gone forever, it'll now have to rely on a much weaker friction bond which requires a larger surface area to properly adhere. A proper repair done by a body shop that knows all of this will be your best hope.

    Good luck, and let us know what happends.
    Took to dealer - they opened case - I marked with sharpie so can see if gets worse. Sealed it with silicone - in Oct they said they will pull engine and send out for repair - NO EXTERNAL damage thank god and high up up on the cross frame so no risk of damaging the outer btm hull.

  10. #9
    High up on inside - no risk of water getting in from outside - had to seal as for when wash the bilge. Always dry inside unless I put water in it.

  11. #10
    Quote Originally Posted by pro10is View Post
    You have a CM-Tec hull so your hull has three layers, fiberglass, PVC, and acrylic. This appears to be a crack in the fiberglass portion, at least I assume so since you haven't mentioned a visible crack on the exterior acrylic finish.

    I also assume DinoMite was joking above when he said "A little spackle in that crack and it will be good as new." He likes to joke around so please don't try that.

    This may be fixable, although it'll never be as strong as if it never occurred, and it needs to be fixed right away before the crack causes damage to the exterior finish. Once the exterior finish is affected, it will be very hard to fix properly because there is no way to repair the finish other than painting, which is inadequate.

    Bring it to the dealer asap and file a warranty claim. BRP will probably offer to have it fixed at a fiberglass body shop. If this wasn't caused by a collision, then it's a hull defect and BRP is responsible for it as long as the ski is under warranty. The body shop will grind down the crack and fill it in with a structural fiberglass patch. Hopefully, this will restore adequate structural integrity, although you'll always need to keep a close watch on it. Since the finish is not affected, there should be no worries there.

    You might be tempted to fill it in with something like JB Weld or fiberglass resin. While this may seem like a good idea, it would be a cosmetic repair only. You have to understand that the forces on the hull will be flexing the damaged area in all directions. If you simply fill in the crack, there won't be adequate surface area for a filler to properly adhere. The area needs to be enlarged to ensure proper filler adhesion over a larger surface area. The strong molecular bond in that area is gone forever, it'll now have to rely on a much weaker friction bond which requires a larger surface area to properly adhere. A proper repair done by a body shop that knows all of this will be your best hope.

    Good luck, and let us know what happends.
    Plan is to yank engine and grind it out and do proper repair. been all through rest of ski - yanked fuel tank and IC and Waterbox - no other cracks or issues which is good.

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